diff --git a/.gitignore b/.gitignore
index f24b7378899ae1bd896dd9cceacd6991ce4e1e57..f7c0c41c815a4a34cc2758b562175b6f20fed4a5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,6 +3,8 @@
 .ipynb_checkpoints                            █
 .vscode
 env
-test.py
+test*.py
 *.jpeg
 __pycache__
+sample_task.txt
+.idea
diff --git a/external/briarmbg.py b/external/briarmbg.py
new file mode 100644
index 0000000000000000000000000000000000000000..6ae7650b1fbc2e592d07f09571772865df844ba8
--- /dev/null
+++ b/external/briarmbg.py
@@ -0,0 +1,460 @@
+import torch
+import torch.nn as nn
+import torch.nn.functional as F
+from huggingface_hub import PyTorchModelHubMixin
+
+
+class REBNCONV(nn.Module):
+    def __init__(self, in_ch=3, out_ch=3, dirate=1, stride=1):
+        super(REBNCONV, self).__init__()
+
+        self.conv_s1 = nn.Conv2d(
+            in_ch, out_ch, 3, padding=1 * dirate, dilation=1 * dirate, stride=stride
+        )
+        self.bn_s1 = nn.BatchNorm2d(out_ch)
+        self.relu_s1 = nn.ReLU(inplace=True)
+
+    def forward(self, x):
+        hx = x
+        xout = self.relu_s1(self.bn_s1(self.conv_s1(hx)))
+
+        return xout
+
+
+## upsample tensor 'src' to have the same spatial size with tensor 'tar'
+def _upsample_like(src, tar):
+    src = F.interpolate(src, size=tar.shape[2:], mode="bilinear")
+
+    return src
+
+
+### RSU-7 ###
+class RSU7(nn.Module):
+    def __init__(self, in_ch=3, mid_ch=12, out_ch=3, img_size=512):
+        super(RSU7, self).__init__()
+
+        self.in_ch = in_ch
+        self.mid_ch = mid_ch
+        self.out_ch = out_ch
+
+        self.rebnconvin = REBNCONV(in_ch, out_ch, dirate=1)  ## 1 -> 1/2
+
+        self.rebnconv1 = REBNCONV(out_ch, mid_ch, dirate=1)
+        self.pool1 = nn.MaxPool2d(2, stride=2, ceil_mode=True)
+
+        self.rebnconv2 = REBNCONV(mid_ch, mid_ch, dirate=1)
+        self.pool2 = nn.MaxPool2d(2, stride=2, ceil_mode=True)
+
+        self.rebnconv3 = REBNCONV(mid_ch, mid_ch, dirate=1)
+        self.pool3 = nn.MaxPool2d(2, stride=2, ceil_mode=True)
+
+        self.rebnconv4 = REBNCONV(mid_ch, mid_ch, dirate=1)
+        self.pool4 = nn.MaxPool2d(2, stride=2, ceil_mode=True)
+
+        self.rebnconv5 = REBNCONV(mid_ch, mid_ch, dirate=1)
+        self.pool5 = nn.MaxPool2d(2, stride=2, ceil_mode=True)
+
+        self.rebnconv6 = REBNCONV(mid_ch, mid_ch, dirate=1)
+
+        self.rebnconv7 = REBNCONV(mid_ch, mid_ch, dirate=2)
+
+        self.rebnconv6d = REBNCONV(mid_ch * 2, mid_ch, dirate=1)
+        self.rebnconv5d = REBNCONV(mid_ch * 2, mid_ch, dirate=1)
+        self.rebnconv4d = REBNCONV(mid_ch * 2, mid_ch, dirate=1)
+        self.rebnconv3d = REBNCONV(mid_ch * 2, mid_ch, dirate=1)
+        self.rebnconv2d = REBNCONV(mid_ch * 2, mid_ch, dirate=1)
+        self.rebnconv1d = REBNCONV(mid_ch * 2, out_ch, dirate=1)
+
+    def forward(self, x):
+        b, c, h, w = x.shape
+
+        hx = x
+        hxin = self.rebnconvin(hx)
+
+        hx1 = self.rebnconv1(hxin)
+        hx = self.pool1(hx1)
+
+        hx2 = self.rebnconv2(hx)
+        hx = self.pool2(hx2)
+
+        hx3 = self.rebnconv3(hx)
+        hx = self.pool3(hx3)
+
+        hx4 = self.rebnconv4(hx)
+        hx = self.pool4(hx4)
+
+        hx5 = self.rebnconv5(hx)
+        hx = self.pool5(hx5)
+
+        hx6 = self.rebnconv6(hx)
+
+        hx7 = self.rebnconv7(hx6)
+
+        hx6d = self.rebnconv6d(torch.cat((hx7, hx6), 1))
+        hx6dup = _upsample_like(hx6d, hx5)
+
+        hx5d = self.rebnconv5d(torch.cat((hx6dup, hx5), 1))
+        hx5dup = _upsample_like(hx5d, hx4)
+
+        hx4d = self.rebnconv4d(torch.cat((hx5dup, hx4), 1))
+        hx4dup = _upsample_like(hx4d, hx3)
+
+        hx3d = self.rebnconv3d(torch.cat((hx4dup, hx3), 1))
+        hx3dup = _upsample_like(hx3d, hx2)
+
+        hx2d = self.rebnconv2d(torch.cat((hx3dup, hx2), 1))
+        hx2dup = _upsample_like(hx2d, hx1)
+
+        hx1d = self.rebnconv1d(torch.cat((hx2dup, hx1), 1))
+
+        return hx1d + hxin
+
+
+### RSU-6 ###
+class RSU6(nn.Module):
+    def __init__(self, in_ch=3, mid_ch=12, out_ch=3):
+        super(RSU6, self).__init__()
+
+        self.rebnconvin = REBNCONV(in_ch, out_ch, dirate=1)
+
+        self.rebnconv1 = REBNCONV(out_ch, mid_ch, dirate=1)
+        self.pool1 = nn.MaxPool2d(2, stride=2, ceil_mode=True)
+
+        self.rebnconv2 = REBNCONV(mid_ch, mid_ch, dirate=1)
+        self.pool2 = nn.MaxPool2d(2, stride=2, ceil_mode=True)
+
+        self.rebnconv3 = REBNCONV(mid_ch, mid_ch, dirate=1)
+        self.pool3 = nn.MaxPool2d(2, stride=2, ceil_mode=True)
+
+        self.rebnconv4 = REBNCONV(mid_ch, mid_ch, dirate=1)
+        self.pool4 = nn.MaxPool2d(2, stride=2, ceil_mode=True)
+
+        self.rebnconv5 = REBNCONV(mid_ch, mid_ch, dirate=1)
+
+        self.rebnconv6 = REBNCONV(mid_ch, mid_ch, dirate=2)
+
+        self.rebnconv5d = REBNCONV(mid_ch * 2, mid_ch, dirate=1)
+        self.rebnconv4d = REBNCONV(mid_ch * 2, mid_ch, dirate=1)
+        self.rebnconv3d = REBNCONV(mid_ch * 2, mid_ch, dirate=1)
+        self.rebnconv2d = REBNCONV(mid_ch * 2, mid_ch, dirate=1)
+        self.rebnconv1d = REBNCONV(mid_ch * 2, out_ch, dirate=1)
+
+    def forward(self, x):
+        hx = x
+
+        hxin = self.rebnconvin(hx)
+
+        hx1 = self.rebnconv1(hxin)
+        hx = self.pool1(hx1)
+
+        hx2 = self.rebnconv2(hx)
+        hx = self.pool2(hx2)
+
+        hx3 = self.rebnconv3(hx)
+        hx = self.pool3(hx3)
+
+        hx4 = self.rebnconv4(hx)
+        hx = self.pool4(hx4)
+
+        hx5 = self.rebnconv5(hx)
+
+        hx6 = self.rebnconv6(hx5)
+
+        hx5d = self.rebnconv5d(torch.cat((hx6, hx5), 1))
+        hx5dup = _upsample_like(hx5d, hx4)
+
+        hx4d = self.rebnconv4d(torch.cat((hx5dup, hx4), 1))
+        hx4dup = _upsample_like(hx4d, hx3)
+
+        hx3d = self.rebnconv3d(torch.cat((hx4dup, hx3), 1))
+        hx3dup = _upsample_like(hx3d, hx2)
+
+        hx2d = self.rebnconv2d(torch.cat((hx3dup, hx2), 1))
+        hx2dup = _upsample_like(hx2d, hx1)
+
+        hx1d = self.rebnconv1d(torch.cat((hx2dup, hx1), 1))
+
+        return hx1d + hxin
+
+
+### RSU-5 ###
+class RSU5(nn.Module):
+    def __init__(self, in_ch=3, mid_ch=12, out_ch=3):
+        super(RSU5, self).__init__()
+
+        self.rebnconvin = REBNCONV(in_ch, out_ch, dirate=1)
+
+        self.rebnconv1 = REBNCONV(out_ch, mid_ch, dirate=1)
+        self.pool1 = nn.MaxPool2d(2, stride=2, ceil_mode=True)
+
+        self.rebnconv2 = REBNCONV(mid_ch, mid_ch, dirate=1)
+        self.pool2 = nn.MaxPool2d(2, stride=2, ceil_mode=True)
+
+        self.rebnconv3 = REBNCONV(mid_ch, mid_ch, dirate=1)
+        self.pool3 = nn.MaxPool2d(2, stride=2, ceil_mode=True)
+
+        self.rebnconv4 = REBNCONV(mid_ch, mid_ch, dirate=1)
+
+        self.rebnconv5 = REBNCONV(mid_ch, mid_ch, dirate=2)
+
+        self.rebnconv4d = REBNCONV(mid_ch * 2, mid_ch, dirate=1)
+        self.rebnconv3d = REBNCONV(mid_ch * 2, mid_ch, dirate=1)
+        self.rebnconv2d = REBNCONV(mid_ch * 2, mid_ch, dirate=1)
+        self.rebnconv1d = REBNCONV(mid_ch * 2, out_ch, dirate=1)
+
+    def forward(self, x):
+        hx = x
+
+        hxin = self.rebnconvin(hx)
+
+        hx1 = self.rebnconv1(hxin)
+        hx = self.pool1(hx1)
+
+        hx2 = self.rebnconv2(hx)
+        hx = self.pool2(hx2)
+
+        hx3 = self.rebnconv3(hx)
+        hx = self.pool3(hx3)
+
+        hx4 = self.rebnconv4(hx)
+
+        hx5 = self.rebnconv5(hx4)
+
+        hx4d = self.rebnconv4d(torch.cat((hx5, hx4), 1))
+        hx4dup = _upsample_like(hx4d, hx3)
+
+        hx3d = self.rebnconv3d(torch.cat((hx4dup, hx3), 1))
+        hx3dup = _upsample_like(hx3d, hx2)
+
+        hx2d = self.rebnconv2d(torch.cat((hx3dup, hx2), 1))
+        hx2dup = _upsample_like(hx2d, hx1)
+
+        hx1d = self.rebnconv1d(torch.cat((hx2dup, hx1), 1))
+
+        return hx1d + hxin
+
+
+### RSU-4 ###
+class RSU4(nn.Module):
+    def __init__(self, in_ch=3, mid_ch=12, out_ch=3):
+        super(RSU4, self).__init__()
+
+        self.rebnconvin = REBNCONV(in_ch, out_ch, dirate=1)
+
+        self.rebnconv1 = REBNCONV(out_ch, mid_ch, dirate=1)
+        self.pool1 = nn.MaxPool2d(2, stride=2, ceil_mode=True)
+
+        self.rebnconv2 = REBNCONV(mid_ch, mid_ch, dirate=1)
+        self.pool2 = nn.MaxPool2d(2, stride=2, ceil_mode=True)
+
+        self.rebnconv3 = REBNCONV(mid_ch, mid_ch, dirate=1)
+
+        self.rebnconv4 = REBNCONV(mid_ch, mid_ch, dirate=2)
+
+        self.rebnconv3d = REBNCONV(mid_ch * 2, mid_ch, dirate=1)
+        self.rebnconv2d = REBNCONV(mid_ch * 2, mid_ch, dirate=1)
+        self.rebnconv1d = REBNCONV(mid_ch * 2, out_ch, dirate=1)
+
+    def forward(self, x):
+        hx = x
+
+        hxin = self.rebnconvin(hx)
+
+        hx1 = self.rebnconv1(hxin)
+        hx = self.pool1(hx1)
+
+        hx2 = self.rebnconv2(hx)
+        hx = self.pool2(hx2)
+
+        hx3 = self.rebnconv3(hx)
+
+        hx4 = self.rebnconv4(hx3)
+
+        hx3d = self.rebnconv3d(torch.cat((hx4, hx3), 1))
+        hx3dup = _upsample_like(hx3d, hx2)
+
+        hx2d = self.rebnconv2d(torch.cat((hx3dup, hx2), 1))
+        hx2dup = _upsample_like(hx2d, hx1)
+
+        hx1d = self.rebnconv1d(torch.cat((hx2dup, hx1), 1))
+
+        return hx1d + hxin
+
+
+### RSU-4F ###
+class RSU4F(nn.Module):
+    def __init__(self, in_ch=3, mid_ch=12, out_ch=3):
+        super(RSU4F, self).__init__()
+
+        self.rebnconvin = REBNCONV(in_ch, out_ch, dirate=1)
+
+        self.rebnconv1 = REBNCONV(out_ch, mid_ch, dirate=1)
+        self.rebnconv2 = REBNCONV(mid_ch, mid_ch, dirate=2)
+        self.rebnconv3 = REBNCONV(mid_ch, mid_ch, dirate=4)
+
+        self.rebnconv4 = REBNCONV(mid_ch, mid_ch, dirate=8)
+
+        self.rebnconv3d = REBNCONV(mid_ch * 2, mid_ch, dirate=4)
+        self.rebnconv2d = REBNCONV(mid_ch * 2, mid_ch, dirate=2)
+        self.rebnconv1d = REBNCONV(mid_ch * 2, out_ch, dirate=1)
+
+    def forward(self, x):
+        hx = x
+
+        hxin = self.rebnconvin(hx)
+
+        hx1 = self.rebnconv1(hxin)
+        hx2 = self.rebnconv2(hx1)
+        hx3 = self.rebnconv3(hx2)
+
+        hx4 = self.rebnconv4(hx3)
+
+        hx3d = self.rebnconv3d(torch.cat((hx4, hx3), 1))
+        hx2d = self.rebnconv2d(torch.cat((hx3d, hx2), 1))
+        hx1d = self.rebnconv1d(torch.cat((hx2d, hx1), 1))
+
+        return hx1d + hxin
+
+
+class myrebnconv(nn.Module):
+    def __init__(
+        self,
+        in_ch=3,
+        out_ch=1,
+        kernel_size=3,
+        stride=1,
+        padding=1,
+        dilation=1,
+        groups=1,
+    ):
+        super(myrebnconv, self).__init__()
+
+        self.conv = nn.Conv2d(
+            in_ch,
+            out_ch,
+            kernel_size=kernel_size,
+            stride=stride,
+            padding=padding,
+            dilation=dilation,
+            groups=groups,
+        )
+        self.bn = nn.BatchNorm2d(out_ch)
+        self.rl = nn.ReLU(inplace=True)
+
+    def forward(self, x):
+        return self.rl(self.bn(self.conv(x)))
+
+
+class BriaRMBG(nn.Module, PyTorchModelHubMixin):
+    def __init__(self, config: dict = {"in_ch": 3, "out_ch": 1}):
+        super(BriaRMBG, self).__init__()
+        in_ch = config["in_ch"]
+        out_ch = config["out_ch"]
+        self.conv_in = nn.Conv2d(in_ch, 64, 3, stride=2, padding=1)
+        self.pool_in = nn.MaxPool2d(2, stride=2, ceil_mode=True)
+
+        self.stage1 = RSU7(64, 32, 64)
+        self.pool12 = nn.MaxPool2d(2, stride=2, ceil_mode=True)
+
+        self.stage2 = RSU6(64, 32, 128)
+        self.pool23 = nn.MaxPool2d(2, stride=2, ceil_mode=True)
+
+        self.stage3 = RSU5(128, 64, 256)
+        self.pool34 = nn.MaxPool2d(2, stride=2, ceil_mode=True)
+
+        self.stage4 = RSU4(256, 128, 512)
+        self.pool45 = nn.MaxPool2d(2, stride=2, ceil_mode=True)
+
+        self.stage5 = RSU4F(512, 256, 512)
+        self.pool56 = nn.MaxPool2d(2, stride=2, ceil_mode=True)
+
+        self.stage6 = RSU4F(512, 256, 512)
+
+        # decoder
+        self.stage5d = RSU4F(1024, 256, 512)
+        self.stage4d = RSU4(1024, 128, 256)
+        self.stage3d = RSU5(512, 64, 128)
+        self.stage2d = RSU6(256, 32, 64)
+        self.stage1d = RSU7(128, 16, 64)
+
+        self.side1 = nn.Conv2d(64, out_ch, 3, padding=1)
+        self.side2 = nn.Conv2d(64, out_ch, 3, padding=1)
+        self.side3 = nn.Conv2d(128, out_ch, 3, padding=1)
+        self.side4 = nn.Conv2d(256, out_ch, 3, padding=1)
+        self.side5 = nn.Conv2d(512, out_ch, 3, padding=1)
+        self.side6 = nn.Conv2d(512, out_ch, 3, padding=1)
+
+        # self.outconv = nn.Conv2d(6*out_ch,out_ch,1)
+
+    def forward(self, x):
+        hx = x
+
+        hxin = self.conv_in(hx)
+        # hx = self.pool_in(hxin)
+
+        # stage 1
+        hx1 = self.stage1(hxin)
+        hx = self.pool12(hx1)
+
+        # stage 2
+        hx2 = self.stage2(hx)
+        hx = self.pool23(hx2)
+
+        # stage 3
+        hx3 = self.stage3(hx)
+        hx = self.pool34(hx3)
+
+        # stage 4
+        hx4 = self.stage4(hx)
+        hx = self.pool45(hx4)
+
+        # stage 5
+        hx5 = self.stage5(hx)
+        hx = self.pool56(hx5)
+
+        # stage 6
+        hx6 = self.stage6(hx)
+        hx6up = _upsample_like(hx6, hx5)
+
+        # -------------------- decoder --------------------
+        hx5d = self.stage5d(torch.cat((hx6up, hx5), 1))
+        hx5dup = _upsample_like(hx5d, hx4)
+
+        hx4d = self.stage4d(torch.cat((hx5dup, hx4), 1))
+        hx4dup = _upsample_like(hx4d, hx3)
+
+        hx3d = self.stage3d(torch.cat((hx4dup, hx3), 1))
+        hx3dup = _upsample_like(hx3d, hx2)
+
+        hx2d = self.stage2d(torch.cat((hx3dup, hx2), 1))
+        hx2dup = _upsample_like(hx2d, hx1)
+
+        hx1d = self.stage1d(torch.cat((hx2dup, hx1), 1))
+
+        # side output
+        d1 = self.side1(hx1d)
+        d1 = _upsample_like(d1, x)
+
+        d2 = self.side2(hx2d)
+        d2 = _upsample_like(d2, x)
+
+        d3 = self.side3(hx3d)
+        d3 = _upsample_like(d3, x)
+
+        d4 = self.side4(hx4d)
+        d4 = _upsample_like(d4, x)
+
+        d5 = self.side5(hx5d)
+        d5 = _upsample_like(d5, x)
+
+        d6 = self.side6(hx6)
+        d6 = _upsample_like(d6, x)
+
+        return [
+            F.sigmoid(d1),
+            F.sigmoid(d2),
+            F.sigmoid(d3),
+            F.sigmoid(d4),
+            F.sigmoid(d5),
+            F.sigmoid(d6),
+        ], [hx1d, hx2d, hx3d, hx4d, hx5d, hx6]
diff --git a/external/llite/library/custom_train_functions.py b/external/llite/library/custom_train_functions.py
index 629e1a2ebe0a0df63b637217fbf80d6f558a89db..e0a026dae865fa02d2f133f2232f361b56ea012c 100644
--- a/external/llite/library/custom_train_functions.py
+++ b/external/llite/library/custom_train_functions.py
@@ -1,529 +1,529 @@
-import torch
-import argparse
-import random
-import re
-from typing import List, Optional, Union
-
-
-def prepare_scheduler_for_custom_training(noise_scheduler, device):
-    if hasattr(noise_scheduler, "all_snr"):
-        return
-
-    alphas_cumprod = noise_scheduler.alphas_cumprod
-    sqrt_alphas_cumprod = torch.sqrt(alphas_cumprod)
-    sqrt_one_minus_alphas_cumprod = torch.sqrt(1.0 - alphas_cumprod)
-    alpha = sqrt_alphas_cumprod
-    sigma = sqrt_one_minus_alphas_cumprod
-    all_snr = (alpha / sigma) ** 2
-
-    noise_scheduler.all_snr = all_snr.to(device)
-
-
-def fix_noise_scheduler_betas_for_zero_terminal_snr(noise_scheduler):
-    # fix beta: zero terminal SNR
-    print(f"fix noise scheduler betas: https://arxiv.org/abs/2305.08891")
-
-    def enforce_zero_terminal_snr(betas):
-        # Convert betas to alphas_bar_sqrt
-        alphas = 1 - betas
-        alphas_bar = alphas.cumprod(0)
-        alphas_bar_sqrt = alphas_bar.sqrt()
-
-        # Store old values.
-        alphas_bar_sqrt_0 = alphas_bar_sqrt[0].clone()
-        alphas_bar_sqrt_T = alphas_bar_sqrt[-1].clone()
-        # Shift so last timestep is zero.
-        alphas_bar_sqrt -= alphas_bar_sqrt_T
-        # Scale so first timestep is back to old value.
-        alphas_bar_sqrt *= alphas_bar_sqrt_0 / (alphas_bar_sqrt_0 - alphas_bar_sqrt_T)
-
-        # Convert alphas_bar_sqrt to betas
-        alphas_bar = alphas_bar_sqrt**2
-        alphas = alphas_bar[1:] / alphas_bar[:-1]
-        alphas = torch.cat([alphas_bar[0:1], alphas])
-        betas = 1 - alphas
-        return betas
-
-    betas = noise_scheduler.betas
-    betas = enforce_zero_terminal_snr(betas)
-    alphas = 1.0 - betas
-    alphas_cumprod = torch.cumprod(alphas, dim=0)
-
-    # print("original:", noise_scheduler.betas)
-    # print("fixed:", betas)
-
-    noise_scheduler.betas = betas
-    noise_scheduler.alphas = alphas
-    noise_scheduler.alphas_cumprod = alphas_cumprod
-
-
-def apply_snr_weight(loss, timesteps, noise_scheduler, gamma, v_prediction=False):
-    snr = torch.stack([noise_scheduler.all_snr[t] for t in timesteps])
-    min_snr_gamma = torch.minimum(snr, torch.full_like(snr, gamma))
-    if v_prediction:
-        snr_weight = torch.div(min_snr_gamma, snr+1).float().to(loss.device)
-    else:
-        snr_weight = torch.div(min_snr_gamma, snr).float().to(loss.device)
-    loss = loss * snr_weight
-    return loss
-
-
-def scale_v_prediction_loss_like_noise_prediction(loss, timesteps, noise_scheduler):
-    scale = get_snr_scale(timesteps, noise_scheduler)
-    loss = loss * scale
-    return loss
-
-
-def get_snr_scale(timesteps, noise_scheduler):
-    snr_t = torch.stack([noise_scheduler.all_snr[t] for t in timesteps])  # batch_size
-    snr_t = torch.minimum(snr_t, torch.ones_like(snr_t) * 1000)  # if timestep is 0, snr_t is inf, so limit it to 1000
-    scale = snr_t / (snr_t + 1)
-    # # show debug info
-    # print(f"timesteps: {timesteps}, snr_t: {snr_t}, scale: {scale}")
-    return scale
-
-
-def add_v_prediction_like_loss(loss, timesteps, noise_scheduler, v_pred_like_loss):
-    scale = get_snr_scale(timesteps, noise_scheduler)
-    # print(f"add v-prediction like loss: {v_pred_like_loss}, scale: {scale}, loss: {loss}, time: {timesteps}")
-    loss = loss + loss / scale * v_pred_like_loss
-    return loss
-
-def apply_debiased_estimation(loss, timesteps, noise_scheduler):
-    snr_t = torch.stack([noise_scheduler.all_snr[t] for t in timesteps])  # batch_size
-    snr_t = torch.minimum(snr_t, torch.ones_like(snr_t) * 1000)  # if timestep is 0, snr_t is inf, so limit it to 1000
-    weight = 1/torch.sqrt(snr_t)
-    loss = weight * loss
-    return loss
-
-# TODO train_utilと分散しているのでどちらかに寄せる
-
-
-def add_custom_train_arguments(parser: argparse.ArgumentParser, support_weighted_captions: bool = True):
-    parser.add_argument(
-        "--min_snr_gamma",
-        type=float,
-        default=None,
-        help="gamma for reducing the weight of high loss timesteps. Lower numbers have stronger effect. 5 is recommended by paper. / 低いタイムステップでの高いlossに対して重みを減らすためのgamma値、低いほど効果が強く、論文では5が推奨",
-    )
-    parser.add_argument(
-        "--scale_v_pred_loss_like_noise_pred",
-        action="store_true",
-        help="scale v-prediction loss like noise prediction loss / v-prediction lossをnoise prediction lossと同じようにスケーリングする",
-    )
-    parser.add_argument(
-        "--v_pred_like_loss",
-        type=float,
-        default=None,
-        help="add v-prediction like loss multiplied by this value / v-prediction lossをこの値をかけたものをlossに加算する",
-    )
-    parser.add_argument(
-        "--debiased_estimation_loss",
-        action="store_true",
-        help="debiased estimation loss / debiased estimation loss",
-    )
-    if support_weighted_captions:
-        parser.add_argument(
-            "--weighted_captions",
-            action="store_true",
-            default=False,
-            help="Enable weighted captions in the standard style (token:1.3). No commas inside parens, or shuffle/dropout may break the decoder. / 「[token]」、「(token)」「(token:1.3)」のような重み付きキャプションを有効にする。カンマを括弧内に入れるとシャッフルやdropoutで重みづけがおかしくなるので注意",
-        )
-
-
-re_attention = re.compile(
-    r"""
-\\\(|
-\\\)|
-\\\[|
-\\]|
-\\\\|
-\\|
-\(|
-\[|
-:([+-]?[.\d]+)\)|
-\)|
-]|
-[^\\()\[\]:]+|
-:
-""",
-    re.X,
-)
-
-
-def parse_prompt_attention(text):
-    """
-    Parses a string with attention tokens and returns a list of pairs: text and its associated weight.
-    Accepted tokens are:
-      (abc) - increases attention to abc by a multiplier of 1.1
-      (abc:3.12) - increases attention to abc by a multiplier of 3.12
-      [abc] - decreases attention to abc by a multiplier of 1.1
-      \( - literal character '('
-      \[ - literal character '['
-      \) - literal character ')'
-      \] - literal character ']'
-      \\ - literal character '\'
-      anything else - just text
-    >>> parse_prompt_attention('normal text')
-    [['normal text', 1.0]]
-    >>> parse_prompt_attention('an (important) word')
-    [['an ', 1.0], ['important', 1.1], [' word', 1.0]]
-    >>> parse_prompt_attention('(unbalanced')
-    [['unbalanced', 1.1]]
-    >>> parse_prompt_attention('\(literal\]')
-    [['(literal]', 1.0]]
-    >>> parse_prompt_attention('(unnecessary)(parens)')
-    [['unnecessaryparens', 1.1]]
-    >>> parse_prompt_attention('a (((house:1.3)) [on] a (hill:0.5), sun, (((sky))).')
-    [['a ', 1.0],
-     ['house', 1.5730000000000004],
-     [' ', 1.1],
-     ['on', 1.0],
-     [' a ', 1.1],
-     ['hill', 0.55],
-     [', sun, ', 1.1],
-     ['sky', 1.4641000000000006],
-     ['.', 1.1]]
-    """
-
-    res = []
-    round_brackets = []
-    square_brackets = []
-
-    round_bracket_multiplier = 1.1
-    square_bracket_multiplier = 1 / 1.1
-
-    def multiply_range(start_position, multiplier):
-        for p in range(start_position, len(res)):
-            res[p][1] *= multiplier
-
-    for m in re_attention.finditer(text):
-        text = m.group(0)
-        weight = m.group(1)
-
-        if text.startswith("\\"):
-            res.append([text[1:], 1.0])
-        elif text == "(":
-            round_brackets.append(len(res))
-        elif text == "[":
-            square_brackets.append(len(res))
-        elif weight is not None and len(round_brackets) > 0:
-            multiply_range(round_brackets.pop(), float(weight))
-        elif text == ")" and len(round_brackets) > 0:
-            multiply_range(round_brackets.pop(), round_bracket_multiplier)
-        elif text == "]" and len(square_brackets) > 0:
-            multiply_range(square_brackets.pop(), square_bracket_multiplier)
-        else:
-            res.append([text, 1.0])
-
-    for pos in round_brackets:
-        multiply_range(pos, round_bracket_multiplier)
-
-    for pos in square_brackets:
-        multiply_range(pos, square_bracket_multiplier)
-
-    if len(res) == 0:
-        res = [["", 1.0]]
-
-    # merge runs of identical weights
-    i = 0
-    while i + 1 < len(res):
-        if res[i][1] == res[i + 1][1]:
-            res[i][0] += res[i + 1][0]
-            res.pop(i + 1)
-        else:
-            i += 1
-
-    return res
-
-
-def get_prompts_with_weights(tokenizer, prompt: List[str], max_length: int):
-    r"""
-    Tokenize a list of prompts and return its tokens with weights of each token.
-
-    No padding, starting or ending token is included.
-    """
-    tokens = []
-    weights = []
-    truncated = False
-    for text in prompt:
-        texts_and_weights = parse_prompt_attention(text)
-        text_token = []
-        text_weight = []
-        for word, weight in texts_and_weights:
-            # tokenize and discard the starting and the ending token
-            token = tokenizer(word).input_ids[1:-1]
-            text_token += token
-            # copy the weight by length of token
-            text_weight += [weight] * len(token)
-            # stop if the text is too long (longer than truncation limit)
-            if len(text_token) > max_length:
-                truncated = True
-                break
-        # truncate
-        if len(text_token) > max_length:
-            truncated = True
-            text_token = text_token[:max_length]
-            text_weight = text_weight[:max_length]
-        tokens.append(text_token)
-        weights.append(text_weight)
-    if truncated:
-        print("Prompt was truncated. Try to shorten the prompt or increase max_embeddings_multiples")
-    return tokens, weights
-
-
-def pad_tokens_and_weights(tokens, weights, max_length, bos, eos, no_boseos_middle=True, chunk_length=77):
-    r"""
-    Pad the tokens (with starting and ending tokens) and weights (with 1.0) to max_length.
-    """
-    max_embeddings_multiples = (max_length - 2) // (chunk_length - 2)
-    weights_length = max_length if no_boseos_middle else max_embeddings_multiples * chunk_length
-    for i in range(len(tokens)):
-        tokens[i] = [bos] + tokens[i] + [eos] * (max_length - 1 - len(tokens[i]))
-        if no_boseos_middle:
-            weights[i] = [1.0] + weights[i] + [1.0] * (max_length - 1 - len(weights[i]))
-        else:
-            w = []
-            if len(weights[i]) == 0:
-                w = [1.0] * weights_length
-            else:
-                for j in range(max_embeddings_multiples):
-                    w.append(1.0)  # weight for starting token in this chunk
-                    w += weights[i][j * (chunk_length - 2) : min(len(weights[i]), (j + 1) * (chunk_length - 2))]
-                    w.append(1.0)  # weight for ending token in this chunk
-                w += [1.0] * (weights_length - len(w))
-            weights[i] = w[:]
-
-    return tokens, weights
-
-
-def get_unweighted_text_embeddings(
-    tokenizer,
-    text_encoder,
-    text_input: torch.Tensor,
-    chunk_length: int,
-    clip_skip: int,
-    eos: int,
-    pad: int,
-    no_boseos_middle: Optional[bool] = True,
-):
-    """
-    When the length of tokens is a multiple of the capacity of the text encoder,
-    it should be split into chunks and sent to the text encoder individually.
-    """
-    max_embeddings_multiples = (text_input.shape[1] - 2) // (chunk_length - 2)
-    if max_embeddings_multiples > 1:
-        text_embeddings = []
-        for i in range(max_embeddings_multiples):
-            # extract the i-th chunk
-            text_input_chunk = text_input[:, i * (chunk_length - 2) : (i + 1) * (chunk_length - 2) + 2].clone()
-
-            # cover the head and the tail by the starting and the ending tokens
-            text_input_chunk[:, 0] = text_input[0, 0]
-            if pad == eos:  # v1
-                text_input_chunk[:, -1] = text_input[0, -1]
-            else:  # v2
-                for j in range(len(text_input_chunk)):
-                    if text_input_chunk[j, -1] != eos and text_input_chunk[j, -1] != pad:  # 最後に普通の文字がある
-                        text_input_chunk[j, -1] = eos
-                    if text_input_chunk[j, 1] == pad:  # BOSだけであとはPAD
-                        text_input_chunk[j, 1] = eos
-
-            if clip_skip is None or clip_skip == 1:
-                text_embedding = text_encoder(text_input_chunk)[0]
-            else:
-                enc_out = text_encoder(text_input_chunk, output_hidden_states=True, return_dict=True)
-                text_embedding = enc_out["hidden_states"][-clip_skip]
-                text_embedding = text_encoder.text_model.final_layer_norm(text_embedding)
-
-            if no_boseos_middle:
-                if i == 0:
-                    # discard the ending token
-                    text_embedding = text_embedding[:, :-1]
-                elif i == max_embeddings_multiples - 1:
-                    # discard the starting token
-                    text_embedding = text_embedding[:, 1:]
-                else:
-                    # discard both starting and ending tokens
-                    text_embedding = text_embedding[:, 1:-1]
-
-            text_embeddings.append(text_embedding)
-        text_embeddings = torch.concat(text_embeddings, axis=1)
-    else:
-        if clip_skip is None or clip_skip == 1:
-            text_embeddings = text_encoder(text_input)[0]
-        else:
-            enc_out = text_encoder(text_input, output_hidden_states=True, return_dict=True)
-            text_embeddings = enc_out["hidden_states"][-clip_skip]
-            text_embeddings = text_encoder.text_model.final_layer_norm(text_embeddings)
-    return text_embeddings
-
-
-def get_weighted_text_embeddings(
-    tokenizer,
-    text_encoder,
-    prompt: Union[str, List[str]],
-    device,
-    max_embeddings_multiples: Optional[int] = 3,
-    no_boseos_middle: Optional[bool] = False,
-    clip_skip=None,
-):
-    r"""
-    Prompts can be assigned with local weights using brackets. For example,
-    prompt 'A (very beautiful) masterpiece' highlights the words 'very beautiful',
-    and the embedding tokens corresponding to the words get multiplied by a constant, 1.1.
-
-    Also, to regularize of the embedding, the weighted embedding would be scaled to preserve the original mean.
-
-    Args:
-        prompt (`str` or `List[str]`):
-            The prompt or prompts to guide the image generation.
-        max_embeddings_multiples (`int`, *optional*, defaults to `3`):
-            The max multiple length of prompt embeddings compared to the max output length of text encoder.
-        no_boseos_middle (`bool`, *optional*, defaults to `False`):
-            If the length of text token is multiples of the capacity of text encoder, whether reserve the starting and
-            ending token in each of the chunk in the middle.
-        skip_parsing (`bool`, *optional*, defaults to `False`):
-            Skip the parsing of brackets.
-        skip_weighting (`bool`, *optional*, defaults to `False`):
-            Skip the weighting. When the parsing is skipped, it is forced True.
-    """
-    max_length = (tokenizer.model_max_length - 2) * max_embeddings_multiples + 2
-    if isinstance(prompt, str):
-        prompt = [prompt]
-
-    prompt_tokens, prompt_weights = get_prompts_with_weights(tokenizer, prompt, max_length - 2)
-
-    # round up the longest length of tokens to a multiple of (model_max_length - 2)
-    max_length = max([len(token) for token in prompt_tokens])
-
-    max_embeddings_multiples = min(
-        max_embeddings_multiples,
-        (max_length - 1) // (tokenizer.model_max_length - 2) + 1,
-    )
-    max_embeddings_multiples = max(1, max_embeddings_multiples)
-    max_length = (tokenizer.model_max_length - 2) * max_embeddings_multiples + 2
-
-    # pad the length of tokens and weights
-    bos = tokenizer.bos_token_id
-    eos = tokenizer.eos_token_id
-    pad = tokenizer.pad_token_id
-    prompt_tokens, prompt_weights = pad_tokens_and_weights(
-        prompt_tokens,
-        prompt_weights,
-        max_length,
-        bos,
-        eos,
-        no_boseos_middle=no_boseos_middle,
-        chunk_length=tokenizer.model_max_length,
-    )
-    prompt_tokens = torch.tensor(prompt_tokens, dtype=torch.long, device=device)
-
-    # get the embeddings
-    text_embeddings = get_unweighted_text_embeddings(
-        tokenizer,
-        text_encoder,
-        prompt_tokens,
-        tokenizer.model_max_length,
-        clip_skip,
-        eos,
-        pad,
-        no_boseos_middle=no_boseos_middle,
-    )
-    prompt_weights = torch.tensor(prompt_weights, dtype=text_embeddings.dtype, device=device)
-
-    # assign weights to the prompts and normalize in the sense of mean
-    previous_mean = text_embeddings.float().mean(axis=[-2, -1]).to(text_embeddings.dtype)
-    text_embeddings = text_embeddings * prompt_weights.unsqueeze(-1)
-    current_mean = text_embeddings.float().mean(axis=[-2, -1]).to(text_embeddings.dtype)
-    text_embeddings = text_embeddings * (previous_mean / current_mean).unsqueeze(-1).unsqueeze(-1)
-
-    return text_embeddings
-
-
-# https://wandb.ai/johnowhitaker/multires_noise/reports/Multi-Resolution-Noise-for-Diffusion-Model-Training--VmlldzozNjYyOTU2
-def pyramid_noise_like(noise, device, iterations=6, discount=0.4):
-    b, c, w, h = noise.shape  # EDIT: w and h get over-written, rename for a different variant!
-    u = torch.nn.Upsample(size=(w, h), mode="bilinear").to(device)
-    for i in range(iterations):
-        r = random.random() * 2 + 2  # Rather than always going 2x,
-        wn, hn = max(1, int(w / (r**i))), max(1, int(h / (r**i)))
-        noise += u(torch.randn(b, c, wn, hn).to(device)) * discount**i
-        if wn == 1 or hn == 1:
-            break  # Lowest resolution is 1x1
-    return noise / noise.std()  # Scaled back to roughly unit variance
-
-
-# https://www.crosslabs.org//blog/diffusion-with-offset-noise
-def apply_noise_offset(latents, noise, noise_offset, adaptive_noise_scale):
-    if noise_offset is None:
-        return noise
-    if adaptive_noise_scale is not None:
-        # latent shape: (batch_size, channels, height, width)
-        # abs mean value for each channel
-        latent_mean = torch.abs(latents.mean(dim=(2, 3), keepdim=True))
-
-        # multiply adaptive noise scale to the mean value and add it to the noise offset
-        noise_offset = noise_offset + adaptive_noise_scale * latent_mean
-        noise_offset = torch.clamp(noise_offset, 0.0, None)  # in case of adaptive noise scale is negative
-
-    noise = noise + noise_offset * torch.randn((latents.shape[0], latents.shape[1], 1, 1), device=latents.device)
-    return noise
-
-
-"""
-##########################################
-# Perlin Noise
-def rand_perlin_2d(device, shape, res, fade=lambda t: 6 * t**5 - 15 * t**4 + 10 * t**3):
-    delta = (res[0] / shape[0], res[1] / shape[1])
-    d = (shape[0] // res[0], shape[1] // res[1])
-
-    grid = (
-        torch.stack(
-            torch.meshgrid(torch.arange(0, res[0], delta[0], device=device), torch.arange(0, res[1], delta[1], device=device)),
-            dim=-1,
-        )
-        % 1
-    )
-    angles = 2 * torch.pi * torch.rand(res[0] + 1, res[1] + 1, device=device)
-    gradients = torch.stack((torch.cos(angles), torch.sin(angles)), dim=-1)
-
-    tile_grads = (
-        lambda slice1, slice2: gradients[slice1[0] : slice1[1], slice2[0] : slice2[1]]
-        .repeat_interleave(d[0], 0)
-        .repeat_interleave(d[1], 1)
-    )
-    dot = lambda grad, shift: (
-        torch.stack((grid[: shape[0], : shape[1], 0] + shift[0], grid[: shape[0], : shape[1], 1] + shift[1]), dim=-1)
-        * grad[: shape[0], : shape[1]]
-    ).sum(dim=-1)
-
-    n00 = dot(tile_grads([0, -1], [0, -1]), [0, 0])
-    n10 = dot(tile_grads([1, None], [0, -1]), [-1, 0])
-    n01 = dot(tile_grads([0, -1], [1, None]), [0, -1])
-    n11 = dot(tile_grads([1, None], [1, None]), [-1, -1])
-    t = fade(grid[: shape[0], : shape[1]])
-    return 1.414 * torch.lerp(torch.lerp(n00, n10, t[..., 0]), torch.lerp(n01, n11, t[..., 0]), t[..., 1])
-
-
-def rand_perlin_2d_octaves(device, shape, res, octaves=1, persistence=0.5):
-    noise = torch.zeros(shape, device=device)
-    frequency = 1
-    amplitude = 1
-    for _ in range(octaves):
-        noise += amplitude * rand_perlin_2d(device, shape, (frequency * res[0], frequency * res[1]))
-        frequency *= 2
-        amplitude *= persistence
-    return noise
-
-
-def perlin_noise(noise, device, octaves):
-    _, c, w, h = noise.shape
-    perlin = lambda: rand_perlin_2d_octaves(device, (w, h), (4, 4), octaves)
-    noise_perlin = []
-    for _ in range(c):
-        noise_perlin.append(perlin())
-    noise_perlin = torch.stack(noise_perlin).unsqueeze(0)   # (1, c, w, h)
-    noise += noise_perlin # broadcast for each batch
-    return noise / noise.std()  # Scaled back to roughly unit variance
-"""
+import torch
+import argparse
+import random
+import re
+from typing import List, Optional, Union
+
+
+def prepare_scheduler_for_custom_training(noise_scheduler, device):
+    if hasattr(noise_scheduler, "all_snr"):
+        return
+
+    alphas_cumprod = noise_scheduler.alphas_cumprod
+    sqrt_alphas_cumprod = torch.sqrt(alphas_cumprod)
+    sqrt_one_minus_alphas_cumprod = torch.sqrt(1.0 - alphas_cumprod)
+    alpha = sqrt_alphas_cumprod
+    sigma = sqrt_one_minus_alphas_cumprod
+    all_snr = (alpha / sigma) ** 2
+
+    noise_scheduler.all_snr = all_snr.to(device)
+
+
+def fix_noise_scheduler_betas_for_zero_terminal_snr(noise_scheduler):
+    # fix beta: zero terminal SNR
+    print(f"fix noise scheduler betas: https://arxiv.org/abs/2305.08891")
+
+    def enforce_zero_terminal_snr(betas):
+        # Convert betas to alphas_bar_sqrt
+        alphas = 1 - betas
+        alphas_bar = alphas.cumprod(0)
+        alphas_bar_sqrt = alphas_bar.sqrt()
+
+        # Store old values.
+        alphas_bar_sqrt_0 = alphas_bar_sqrt[0].clone()
+        alphas_bar_sqrt_T = alphas_bar_sqrt[-1].clone()
+        # Shift so last timestep is zero.
+        alphas_bar_sqrt -= alphas_bar_sqrt_T
+        # Scale so first timestep is back to old value.
+        alphas_bar_sqrt *= alphas_bar_sqrt_0 / (alphas_bar_sqrt_0 - alphas_bar_sqrt_T)
+
+        # Convert alphas_bar_sqrt to betas
+        alphas_bar = alphas_bar_sqrt**2
+        alphas = alphas_bar[1:] / alphas_bar[:-1]
+        alphas = torch.cat([alphas_bar[0:1], alphas])
+        betas = 1 - alphas
+        return betas
+
+    betas = noise_scheduler.betas
+    betas = enforce_zero_terminal_snr(betas)
+    alphas = 1.0 - betas
+    alphas_cumprod = torch.cumprod(alphas, dim=0)
+
+    # print("original:", noise_scheduler.betas)
+    # print("fixed:", betas)
+
+    noise_scheduler.betas = betas
+    noise_scheduler.alphas = alphas
+    noise_scheduler.alphas_cumprod = alphas_cumprod
+
+
+def apply_snr_weight(loss, timesteps, noise_scheduler, gamma, v_prediction=False):
+    snr = torch.stack([noise_scheduler.all_snr[t] for t in timesteps])
+    min_snr_gamma = torch.minimum(snr, torch.full_like(snr, gamma))
+    if v_prediction:
+        snr_weight = torch.div(min_snr_gamma, snr+1).float().to(loss.device)
+    else:
+        snr_weight = torch.div(min_snr_gamma, snr).float().to(loss.device)
+    loss = loss * snr_weight
+    return loss
+
+
+def scale_v_prediction_loss_like_noise_prediction(loss, timesteps, noise_scheduler):
+    scale = get_snr_scale(timesteps, noise_scheduler)
+    loss = loss * scale
+    return loss
+
+
+def get_snr_scale(timesteps, noise_scheduler):
+    snr_t = torch.stack([noise_scheduler.all_snr[t] for t in timesteps])  # batch_size
+    snr_t = torch.minimum(snr_t, torch.ones_like(snr_t) * 1000)  # if timestep is 0, snr_t is inf, so limit it to 1000
+    scale = snr_t / (snr_t + 1)
+    # # show debug info
+    # print(f"timesteps: {timesteps}, snr_t: {snr_t}, scale: {scale}")
+    return scale
+
+
+def add_v_prediction_like_loss(loss, timesteps, noise_scheduler, v_pred_like_loss):
+    scale = get_snr_scale(timesteps, noise_scheduler)
+    # print(f"add v-prediction like loss: {v_pred_like_loss}, scale: {scale}, loss: {loss}, time: {timesteps}")
+    loss = loss + loss / scale * v_pred_like_loss
+    return loss
+
+def apply_debiased_estimation(loss, timesteps, noise_scheduler):
+    snr_t = torch.stack([noise_scheduler.all_snr[t] for t in timesteps])  # batch_size
+    snr_t = torch.minimum(snr_t, torch.ones_like(snr_t) * 1000)  # if timestep is 0, snr_t is inf, so limit it to 1000
+    weight = 1/torch.sqrt(snr_t)
+    loss = weight * loss
+    return loss
+
+# TODO train_utilと分散しているのでどちらかに寄せる
+
+
+def add_custom_train_arguments(parser: argparse.ArgumentParser, support_weighted_captions: bool = True):
+    parser.add_argument(
+        "--min_snr_gamma",
+        type=float,
+        default=None,
+        help="gamma for reducing the weight of high loss timesteps. Lower numbers have stronger effect. 5 is recommended by paper. / 低いタイムステップでの高いlossに対して重みを減らすためのgamma値、低いほど効果が強く、論文では5が推奨",
+    )
+    parser.add_argument(
+        "--scale_v_pred_loss_like_noise_pred",
+        action="store_true",
+        help="scale v-prediction loss like noise prediction loss / v-prediction lossをnoise prediction lossと同じようにスケーリングする",
+    )
+    parser.add_argument(
+        "--v_pred_like_loss",
+        type=float,
+        default=None,
+        help="add v-prediction like loss multiplied by this value / v-prediction lossをこの値をかけたものをlossに加算する",
+    )
+    parser.add_argument(
+        "--debiased_estimation_loss",
+        action="store_true",
+        help="debiased estimation loss / debiased estimation loss",
+    )
+    if support_weighted_captions:
+        parser.add_argument(
+            "--weighted_captions",
+            action="store_true",
+            default=False,
+            help="Enable weighted captions in the standard style (token:1.3). No commas inside parens, or shuffle/dropout may break the decoder. / 「[token]」、「(token)」「(token:1.3)」のような重み付きキャプションを有効にする。カンマを括弧内に入れるとシャッフルやdropoutで重みづけがおかしくなるので注意",
+        )
+
+
+re_attention = re.compile(
+    r"""
+\\\(|
+\\\)|
+\\\[|
+\\]|
+\\\\|
+\\|
+\(|
+\[|
+:([+-]?[.\d]+)\)|
+\)|
+]|
+[^\\()\[\]:]+|
+:
+""",
+    re.X,
+)
+
+
+def parse_prompt_attention(text):
+    """
+    Parses a string with attention tokens and returns a list of pairs: text and its associated weight.
+    Accepted tokens are:
+      (abc) - increases attention to abc by a multiplier of 1.1
+      (abc:3.12) - increases attention to abc by a multiplier of 3.12
+      [abc] - decreases attention to abc by a multiplier of 1.1
+      \( - literal character '('
+      \[ - literal character '['
+      \) - literal character ')'
+      \] - literal character ']'
+      \\ - literal character '\'
+      anything else - just text
+    >>> parse_prompt_attention('normal text')
+    [['normal text', 1.0]]
+    >>> parse_prompt_attention('an (important) word')
+    [['an ', 1.0], ['important', 1.1], [' word', 1.0]]
+    >>> parse_prompt_attention('(unbalanced')
+    [['unbalanced', 1.1]]
+    >>> parse_prompt_attention('\(literal\]')
+    [['(literal]', 1.0]]
+    >>> parse_prompt_attention('(unnecessary)(parens)')
+    [['unnecessaryparens', 1.1]]
+    >>> parse_prompt_attention('a (((house:1.3)) [on] a (hill:0.5), sun, (((sky))).')
+    [['a ', 1.0],
+     ['house', 1.5730000000000004],
+     [' ', 1.1],
+     ['on', 1.0],
+     [' a ', 1.1],
+     ['hill', 0.55],
+     [', sun, ', 1.1],
+     ['sky', 1.4641000000000006],
+     ['.', 1.1]]
+    """
+
+    res = []
+    round_brackets = []
+    square_brackets = []
+
+    round_bracket_multiplier = 1.1
+    square_bracket_multiplier = 1 / 1.1
+
+    def multiply_range(start_position, multiplier):
+        for p in range(start_position, len(res)):
+            res[p][1] *= multiplier
+
+    for m in re_attention.finditer(text):
+        text = m.group(0)
+        weight = m.group(1)
+
+        if text.startswith("\\"):
+            res.append([text[1:], 1.0])
+        elif text == "(":
+            round_brackets.append(len(res))
+        elif text == "[":
+            square_brackets.append(len(res))
+        elif weight is not None and len(round_brackets) > 0:
+            multiply_range(round_brackets.pop(), float(weight))
+        elif text == ")" and len(round_brackets) > 0:
+            multiply_range(round_brackets.pop(), round_bracket_multiplier)
+        elif text == "]" and len(square_brackets) > 0:
+            multiply_range(square_brackets.pop(), square_bracket_multiplier)
+        else:
+            res.append([text, 1.0])
+
+    for pos in round_brackets:
+        multiply_range(pos, round_bracket_multiplier)
+
+    for pos in square_brackets:
+        multiply_range(pos, square_bracket_multiplier)
+
+    if len(res) == 0:
+        res = [["", 1.0]]
+
+    # merge runs of identical weights
+    i = 0
+    while i + 1 < len(res):
+        if res[i][1] == res[i + 1][1]:
+            res[i][0] += res[i + 1][0]
+            res.pop(i + 1)
+        else:
+            i += 1
+
+    return res
+
+
+def get_prompts_with_weights(tokenizer, prompt: List[str], max_length: int):
+    r"""
+    Tokenize a list of prompts and return its tokens with weights of each token.
+
+    No padding, starting or ending token is included.
+    """
+    tokens = []
+    weights = []
+    truncated = False
+    for text in prompt:
+        texts_and_weights = parse_prompt_attention(text)
+        text_token = []
+        text_weight = []
+        for word, weight in texts_and_weights:
+            # tokenize and discard the starting and the ending token
+            token = tokenizer(word).input_ids[1:-1]
+            text_token += token
+            # copy the weight by length of token
+            text_weight += [weight] * len(token)
+            # stop if the text is too long (longer than truncation limit)
+            if len(text_token) > max_length:
+                truncated = True
+                break
+        # truncate
+        if len(text_token) > max_length:
+            truncated = True
+            text_token = text_token[:max_length]
+            text_weight = text_weight[:max_length]
+        tokens.append(text_token)
+        weights.append(text_weight)
+    if truncated:
+        print("Prompt was truncated. Try to shorten the prompt or increase max_embeddings_multiples")
+    return tokens, weights
+
+
+def pad_tokens_and_weights(tokens, weights, max_length, bos, eos, no_boseos_middle=True, chunk_length=77):
+    r"""
+    Pad the tokens (with starting and ending tokens) and weights (with 1.0) to max_length.
+    """
+    max_embeddings_multiples = (max_length - 2) // (chunk_length - 2)
+    weights_length = max_length if no_boseos_middle else max_embeddings_multiples * chunk_length
+    for i in range(len(tokens)):
+        tokens[i] = [bos] + tokens[i] + [eos] * (max_length - 1 - len(tokens[i]))
+        if no_boseos_middle:
+            weights[i] = [1.0] + weights[i] + [1.0] * (max_length - 1 - len(weights[i]))
+        else:
+            w = []
+            if len(weights[i]) == 0:
+                w = [1.0] * weights_length
+            else:
+                for j in range(max_embeddings_multiples):
+                    w.append(1.0)  # weight for starting token in this chunk
+                    w += weights[i][j * (chunk_length - 2) : min(len(weights[i]), (j + 1) * (chunk_length - 2))]
+                    w.append(1.0)  # weight for ending token in this chunk
+                w += [1.0] * (weights_length - len(w))
+            weights[i] = w[:]
+
+    return tokens, weights
+
+
+def get_unweighted_text_embeddings(
+    tokenizer,
+    text_encoder,
+    text_input: torch.Tensor,
+    chunk_length: int,
+    clip_skip: int,
+    eos: int,
+    pad: int,
+    no_boseos_middle: Optional[bool] = True,
+):
+    """
+    When the length of tokens is a multiple of the capacity of the text encoder,
+    it should be split into chunks and sent to the text encoder individually.
+    """
+    max_embeddings_multiples = (text_input.shape[1] - 2) // (chunk_length - 2)
+    if max_embeddings_multiples > 1:
+        text_embeddings = []
+        for i in range(max_embeddings_multiples):
+            # extract the i-th chunk
+            text_input_chunk = text_input[:, i * (chunk_length - 2) : (i + 1) * (chunk_length - 2) + 2].clone()
+
+            # cover the head and the tail by the starting and the ending tokens
+            text_input_chunk[:, 0] = text_input[0, 0]
+            if pad == eos:  # v1
+                text_input_chunk[:, -1] = text_input[0, -1]
+            else:  # v2
+                for j in range(len(text_input_chunk)):
+                    if text_input_chunk[j, -1] != eos and text_input_chunk[j, -1] != pad:  # 最後に普通の文字がある
+                        text_input_chunk[j, -1] = eos
+                    if text_input_chunk[j, 1] == pad:  # BOSだけであとはPAD
+                        text_input_chunk[j, 1] = eos
+
+            if clip_skip is None or clip_skip == 1:
+                text_embedding = text_encoder(text_input_chunk)[0]
+            else:
+                enc_out = text_encoder(text_input_chunk, output_hidden_states=True, return_dict=True)
+                text_embedding = enc_out["hidden_states"][-clip_skip]
+                text_embedding = text_encoder.text_model.final_layer_norm(text_embedding)
+
+            if no_boseos_middle:
+                if i == 0:
+                    # discard the ending token
+                    text_embedding = text_embedding[:, :-1]
+                elif i == max_embeddings_multiples - 1:
+                    # discard the starting token
+                    text_embedding = text_embedding[:, 1:]
+                else:
+                    # discard both starting and ending tokens
+                    text_embedding = text_embedding[:, 1:-1]
+
+            text_embeddings.append(text_embedding)
+        text_embeddings = torch.concat(text_embeddings, axis=1)
+    else:
+        if clip_skip is None or clip_skip == 1:
+            text_embeddings = text_encoder(text_input)[0]
+        else:
+            enc_out = text_encoder(text_input, output_hidden_states=True, return_dict=True)
+            text_embeddings = enc_out["hidden_states"][-clip_skip]
+            text_embeddings = text_encoder.text_model.final_layer_norm(text_embeddings)
+    return text_embeddings
+
+
+def get_weighted_text_embeddings(
+    tokenizer,
+    text_encoder,
+    prompt: Union[str, List[str]],
+    device,
+    max_embeddings_multiples: Optional[int] = 3,
+    no_boseos_middle: Optional[bool] = False,
+    clip_skip=None,
+):
+    r"""
+    Prompts can be assigned with local weights using brackets. For example,
+    prompt 'A (very beautiful) masterpiece' highlights the words 'very beautiful',
+    and the embedding tokens corresponding to the words get multiplied by a constant, 1.1.
+
+    Also, to regularize of the embedding, the weighted embedding would be scaled to preserve the original mean.
+
+    Args:
+        prompt (`str` or `List[str]`):
+            The prompt or prompts to guide the image generation.
+        max_embeddings_multiples (`int`, *optional*, defaults to `3`):
+            The max multiple length of prompt embeddings compared to the max output length of text encoder.
+        no_boseos_middle (`bool`, *optional*, defaults to `False`):
+            If the length of text token is multiples of the capacity of text encoder, whether reserve the starting and
+            ending token in each of the chunk in the middle.
+        skip_parsing (`bool`, *optional*, defaults to `False`):
+            Skip the parsing of brackets.
+        skip_weighting (`bool`, *optional*, defaults to `False`):
+            Skip the weighting. When the parsing is skipped, it is forced True.
+    """
+    max_length = (tokenizer.model_max_length - 2) * max_embeddings_multiples + 2
+    if isinstance(prompt, str):
+        prompt = [prompt]
+
+    prompt_tokens, prompt_weights = get_prompts_with_weights(tokenizer, prompt, max_length - 2)
+
+    # round up the longest length of tokens to a multiple of (model_max_length - 2)
+    max_length = max([len(token) for token in prompt_tokens])
+
+    max_embeddings_multiples = min(
+        max_embeddings_multiples,
+        (max_length - 1) // (tokenizer.model_max_length - 2) + 1,
+    )
+    max_embeddings_multiples = max(1, max_embeddings_multiples)
+    max_length = (tokenizer.model_max_length - 2) * max_embeddings_multiples + 2
+
+    # pad the length of tokens and weights
+    bos = tokenizer.bos_token_id
+    eos = tokenizer.eos_token_id
+    pad = tokenizer.pad_token_id
+    prompt_tokens, prompt_weights = pad_tokens_and_weights(
+        prompt_tokens,
+        prompt_weights,
+        max_length,
+        bos,
+        eos,
+        no_boseos_middle=no_boseos_middle,
+        chunk_length=tokenizer.model_max_length,
+    )
+    prompt_tokens = torch.tensor(prompt_tokens, dtype=torch.long, device=device)
+
+    # get the embeddings
+    text_embeddings = get_unweighted_text_embeddings(
+        tokenizer,
+        text_encoder,
+        prompt_tokens,
+        tokenizer.model_max_length,
+        clip_skip,
+        eos,
+        pad,
+        no_boseos_middle=no_boseos_middle,
+    )
+    prompt_weights = torch.tensor(prompt_weights, dtype=text_embeddings.dtype, device=device)
+
+    # assign weights to the prompts and normalize in the sense of mean
+    previous_mean = text_embeddings.float().mean(axis=[-2, -1]).to(text_embeddings.dtype)
+    text_embeddings = text_embeddings * prompt_weights.unsqueeze(-1)
+    current_mean = text_embeddings.float().mean(axis=[-2, -1]).to(text_embeddings.dtype)
+    text_embeddings = text_embeddings * (previous_mean / current_mean).unsqueeze(-1).unsqueeze(-1)
+
+    return text_embeddings
+
+
+# https://wandb.ai/johnowhitaker/multires_noise/reports/Multi-Resolution-Noise-for-Diffusion-Model-Training--VmlldzozNjYyOTU2
+def pyramid_noise_like(noise, device, iterations=6, discount=0.4):
+    b, c, w, h = noise.shape  # EDIT: w and h get over-written, rename for a different variant!
+    u = torch.nn.Upsample(size=(w, h), mode="bilinear").to(device)
+    for i in range(iterations):
+        r = random.random() * 2 + 2  # Rather than always going 2x,
+        wn, hn = max(1, int(w / (r**i))), max(1, int(h / (r**i)))
+        noise += u(torch.randn(b, c, wn, hn).to(device)) * discount**i
+        if wn == 1 or hn == 1:
+            break  # Lowest resolution is 1x1
+    return noise / noise.std()  # Scaled back to roughly unit variance
+
+
+# https://www.crosslabs.org//blog/diffusion-with-offset-noise
+def apply_noise_offset(latents, noise, noise_offset, adaptive_noise_scale):
+    if noise_offset is None:
+        return noise
+    if adaptive_noise_scale is not None:
+        # latent shape: (batch_size, channels, height, width)
+        # abs mean value for each channel
+        latent_mean = torch.abs(latents.mean(dim=(2, 3), keepdim=True))
+
+        # multiply adaptive noise scale to the mean value and add it to the noise offset
+        noise_offset = noise_offset + adaptive_noise_scale * latent_mean
+        noise_offset = torch.clamp(noise_offset, 0.0, None)  # in case of adaptive noise scale is negative
+
+    noise = noise + noise_offset * torch.randn((latents.shape[0], latents.shape[1], 1, 1), device=latents.device)
+    return noise
+
+
+"""
+##########################################
+# Perlin Noise
+def rand_perlin_2d(device, shape, res, fade=lambda t: 6 * t**5 - 15 * t**4 + 10 * t**3):
+    delta = (res[0] / shape[0], res[1] / shape[1])
+    d = (shape[0] // res[0], shape[1] // res[1])
+
+    grid = (
+        torch.stack(
+            torch.meshgrid(torch.arange(0, res[0], delta[0], device=device), torch.arange(0, res[1], delta[1], device=device)),
+            dim=-1,
+        )
+        % 1
+    )
+    angles = 2 * torch.pi * torch.rand(res[0] + 1, res[1] + 1, device=device)
+    gradients = torch.stack((torch.cos(angles), torch.sin(angles)), dim=-1)
+
+    tile_grads = (
+        lambda slice1, slice2: gradients[slice1[0] : slice1[1], slice2[0] : slice2[1]]
+        .repeat_interleave(d[0], 0)
+        .repeat_interleave(d[1], 1)
+    )
+    dot = lambda grad, shift: (
+        torch.stack((grid[: shape[0], : shape[1], 0] + shift[0], grid[: shape[0], : shape[1], 1] + shift[1]), dim=-1)
+        * grad[: shape[0], : shape[1]]
+    ).sum(dim=-1)
+
+    n00 = dot(tile_grads([0, -1], [0, -1]), [0, 0])
+    n10 = dot(tile_grads([1, None], [0, -1]), [-1, 0])
+    n01 = dot(tile_grads([0, -1], [1, None]), [0, -1])
+    n11 = dot(tile_grads([1, None], [1, None]), [-1, -1])
+    t = fade(grid[: shape[0], : shape[1]])
+    return 1.414 * torch.lerp(torch.lerp(n00, n10, t[..., 0]), torch.lerp(n01, n11, t[..., 0]), t[..., 1])
+
+
+def rand_perlin_2d_octaves(device, shape, res, octaves=1, persistence=0.5):
+    noise = torch.zeros(shape, device=device)
+    frequency = 1
+    amplitude = 1
+    for _ in range(octaves):
+        noise += amplitude * rand_perlin_2d(device, shape, (frequency * res[0], frequency * res[1]))
+        frequency *= 2
+        amplitude *= persistence
+    return noise
+
+
+def perlin_noise(noise, device, octaves):
+    _, c, w, h = noise.shape
+    perlin = lambda: rand_perlin_2d_octaves(device, (w, h), (4, 4), octaves)
+    noise_perlin = []
+    for _ in range(c):
+        noise_perlin.append(perlin())
+    noise_perlin = torch.stack(noise_perlin).unsqueeze(0)   # (1, c, w, h)
+    noise += noise_perlin # broadcast for each batch
+    return noise / noise.std()  # Scaled back to roughly unit variance
+"""
diff --git a/external/midas/__init__.py b/external/midas/__init__.py
index 3bc396acf23049f182cac19f9e801bc319371138..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 100644
--- a/external/midas/__init__.py
+++ b/external/midas/__init__.py
@@ -1,39 +0,0 @@
-import cv2
-import numpy as np
-import torch
-from einops import rearrange
-
-from .api import MiDaSInference
-
-model = None
-
-
-def apply_midas(input_image, a=np.pi * 2.0, bg_th=0.1):
-    global model
-    if not model:
-        model = MiDaSInference(model_type="dpt_hybrid").cuda()
-    assert input_image.ndim == 3
-    image_depth = input_image
-    with torch.no_grad():
-        image_depth = torch.from_numpy(image_depth).float().cuda()
-        image_depth = image_depth / 127.5 - 1.0
-        image_depth = rearrange(image_depth, "h w c -> 1 c h w")
-        depth = model(image_depth)[0]
-
-        depth_pt = depth.clone()
-        depth_pt -= torch.min(depth_pt)
-        depth_pt /= torch.max(depth_pt)
-        depth_pt = depth_pt.cpu().numpy()
-        depth_image = (depth_pt * 255.0).clip(0, 255).astype(np.uint8)
-
-        depth_np = depth.cpu().numpy()
-        x = cv2.Sobel(depth_np, cv2.CV_32F, 1, 0, ksize=3)
-        y = cv2.Sobel(depth_np, cv2.CV_32F, 0, 1, ksize=3)
-        z = np.ones_like(x) * a
-        x[depth_pt < bg_th] = 0
-        y[depth_pt < bg_th] = 0
-        normal = np.stack([x, y, z], axis=2)
-        normal /= np.sum(normal**2.0, axis=2, keepdims=True) ** 0.5
-        normal_image = (normal * 127.5 + 127.5).clip(0, 255).astype(np.uint8)
-
-        return depth_image, normal_image
diff --git a/external/midas/base_model.py b/external/midas/base_model.py
new file mode 100644
index 0000000000000000000000000000000000000000..5cf430239b47ec5ec07531263f26f5c24a2311cd
--- /dev/null
+++ b/external/midas/base_model.py
@@ -0,0 +1,16 @@
+import torch
+
+
+class BaseModel(torch.nn.Module):
+    def load(self, path):
+        """Load model from file.
+
+        Args:
+            path (str): file path
+        """
+        parameters = torch.load(path, map_location=torch.device('cpu'))
+
+        if "optimizer" in parameters:
+            parameters = parameters["model"]
+
+        self.load_state_dict(parameters)
diff --git a/external/midas/blocks.py b/external/midas/blocks.py
new file mode 100644
index 0000000000000000000000000000000000000000..2145d18fa98060a618536d9a64fe6589e9be4f78
--- /dev/null
+++ b/external/midas/blocks.py
@@ -0,0 +1,342 @@
+import torch
+import torch.nn as nn
+
+from .vit import (
+    _make_pretrained_vitb_rn50_384,
+    _make_pretrained_vitl16_384,
+    _make_pretrained_vitb16_384,
+    forward_vit,
+)
+
+def _make_encoder(backbone, features, use_pretrained, groups=1, expand=False, exportable=True, hooks=None, use_vit_only=False, use_readout="ignore",):
+    if backbone == "vitl16_384":
+        pretrained = _make_pretrained_vitl16_384(
+            use_pretrained, hooks=hooks, use_readout=use_readout
+        )
+        scratch = _make_scratch(
+            [256, 512, 1024, 1024], features, groups=groups, expand=expand
+        )  # ViT-L/16 - 85.0% Top1 (backbone)
+    elif backbone == "vitb_rn50_384":
+        pretrained = _make_pretrained_vitb_rn50_384(
+            use_pretrained,
+            hooks=hooks,
+            use_vit_only=use_vit_only,
+            use_readout=use_readout,
+        )
+        scratch = _make_scratch(
+            [256, 512, 768, 768], features, groups=groups, expand=expand
+        )  # ViT-H/16 - 85.0% Top1 (backbone)
+    elif backbone == "vitb16_384":
+        pretrained = _make_pretrained_vitb16_384(
+            use_pretrained, hooks=hooks, use_readout=use_readout
+        )
+        scratch = _make_scratch(
+            [96, 192, 384, 768], features, groups=groups, expand=expand
+        )  # ViT-B/16 - 84.6% Top1 (backbone)
+    elif backbone == "resnext101_wsl":
+        pretrained = _make_pretrained_resnext101_wsl(use_pretrained)
+        scratch = _make_scratch([256, 512, 1024, 2048], features, groups=groups, expand=expand)     # efficientnet_lite3  
+    elif backbone == "efficientnet_lite3":
+        pretrained = _make_pretrained_efficientnet_lite3(use_pretrained, exportable=exportable)
+        scratch = _make_scratch([32, 48, 136, 384], features, groups=groups, expand=expand)  # efficientnet_lite3     
+    else:
+        print(f"Backbone '{backbone}' not implemented")
+        assert False
+        
+    return pretrained, scratch
+
+
+def _make_scratch(in_shape, out_shape, groups=1, expand=False):
+    scratch = nn.Module()
+
+    out_shape1 = out_shape
+    out_shape2 = out_shape
+    out_shape3 = out_shape
+    out_shape4 = out_shape
+    if expand==True:
+        out_shape1 = out_shape
+        out_shape2 = out_shape*2
+        out_shape3 = out_shape*4
+        out_shape4 = out_shape*8
+
+    scratch.layer1_rn = nn.Conv2d(
+        in_shape[0], out_shape1, kernel_size=3, stride=1, padding=1, bias=False, groups=groups
+    )
+    scratch.layer2_rn = nn.Conv2d(
+        in_shape[1], out_shape2, kernel_size=3, stride=1, padding=1, bias=False, groups=groups
+    )
+    scratch.layer3_rn = nn.Conv2d(
+        in_shape[2], out_shape3, kernel_size=3, stride=1, padding=1, bias=False, groups=groups
+    )
+    scratch.layer4_rn = nn.Conv2d(
+        in_shape[3], out_shape4, kernel_size=3, stride=1, padding=1, bias=False, groups=groups
+    )
+
+    return scratch
+
+
+def _make_pretrained_efficientnet_lite3(use_pretrained, exportable=False):
+    efficientnet = torch.hub.load(
+        "rwightman/gen-efficientnet-pytorch",
+        "tf_efficientnet_lite3",
+        pretrained=use_pretrained,
+        exportable=exportable
+    )
+    return _make_efficientnet_backbone(efficientnet)
+
+
+def _make_efficientnet_backbone(effnet):
+    pretrained = nn.Module()
+
+    pretrained.layer1 = nn.Sequential(
+        effnet.conv_stem, effnet.bn1, effnet.act1, *effnet.blocks[0:2]
+    )
+    pretrained.layer2 = nn.Sequential(*effnet.blocks[2:3])
+    pretrained.layer3 = nn.Sequential(*effnet.blocks[3:5])
+    pretrained.layer4 = nn.Sequential(*effnet.blocks[5:9])
+
+    return pretrained
+    
+
+def _make_resnet_backbone(resnet):
+    pretrained = nn.Module()
+    pretrained.layer1 = nn.Sequential(
+        resnet.conv1, resnet.bn1, resnet.relu, resnet.maxpool, resnet.layer1
+    )
+
+    pretrained.layer2 = resnet.layer2
+    pretrained.layer3 = resnet.layer3
+    pretrained.layer4 = resnet.layer4
+
+    return pretrained
+
+
+def _make_pretrained_resnext101_wsl(use_pretrained):
+    resnet = torch.hub.load("facebookresearch/WSL-Images", "resnext101_32x8d_wsl")
+    return _make_resnet_backbone(resnet)
+
+
+
+class Interpolate(nn.Module):
+    """Interpolation module.
+    """
+
+    def __init__(self, scale_factor, mode, align_corners=False):
+        """Init.
+
+        Args:
+            scale_factor (float): scaling
+            mode (str): interpolation mode
+        """
+        super(Interpolate, self).__init__()
+
+        self.interp = nn.functional.interpolate
+        self.scale_factor = scale_factor
+        self.mode = mode
+        self.align_corners = align_corners
+
+    def forward(self, x):
+        """Forward pass.
+
+        Args:
+            x (tensor): input
+
+        Returns:
+            tensor: interpolated data
+        """
+
+        x = self.interp(
+            x, scale_factor=self.scale_factor, mode=self.mode, align_corners=self.align_corners
+        )
+
+        return x
+
+
+class ResidualConvUnit(nn.Module):
+    """Residual convolution module.
+    """
+
+    def __init__(self, features):
+        """Init.
+
+        Args:
+            features (int): number of features
+        """
+        super().__init__()
+
+        self.conv1 = nn.Conv2d(
+            features, features, kernel_size=3, stride=1, padding=1, bias=True
+        )
+
+        self.conv2 = nn.Conv2d(
+            features, features, kernel_size=3, stride=1, padding=1, bias=True
+        )
+
+        self.relu = nn.ReLU(inplace=True)
+
+    def forward(self, x):
+        """Forward pass.
+
+        Args:
+            x (tensor): input
+
+        Returns:
+            tensor: output
+        """
+        out = self.relu(x)
+        out = self.conv1(out)
+        out = self.relu(out)
+        out = self.conv2(out)
+
+        return out + x
+
+
+class FeatureFusionBlock(nn.Module):
+    """Feature fusion block.
+    """
+
+    def __init__(self, features):
+        """Init.
+
+        Args:
+            features (int): number of features
+        """
+        super(FeatureFusionBlock, self).__init__()
+
+        self.resConfUnit1 = ResidualConvUnit(features)
+        self.resConfUnit2 = ResidualConvUnit(features)
+
+    def forward(self, *xs):
+        """Forward pass.
+
+        Returns:
+            tensor: output
+        """
+        output = xs[0]
+
+        if len(xs) == 2:
+            output += self.resConfUnit1(xs[1])
+
+        output = self.resConfUnit2(output)
+
+        output = nn.functional.interpolate(
+            output, scale_factor=2, mode="bilinear", align_corners=True
+        )
+
+        return output
+
+
+
+
+class ResidualConvUnit_custom(nn.Module):
+    """Residual convolution module.
+    """
+
+    def __init__(self, features, activation, bn):
+        """Init.
+
+        Args:
+            features (int): number of features
+        """
+        super().__init__()
+
+        self.bn = bn
+
+        self.groups=1
+
+        self.conv1 = nn.Conv2d(
+            features, features, kernel_size=3, stride=1, padding=1, bias=True, groups=self.groups
+        )
+        
+        self.conv2 = nn.Conv2d(
+            features, features, kernel_size=3, stride=1, padding=1, bias=True, groups=self.groups
+        )
+
+        if self.bn==True:
+            self.bn1 = nn.BatchNorm2d(features)
+            self.bn2 = nn.BatchNorm2d(features)
+
+        self.activation = activation
+
+        self.skip_add = nn.quantized.FloatFunctional()
+
+    def forward(self, x):
+        """Forward pass.
+
+        Args:
+            x (tensor): input
+
+        Returns:
+            tensor: output
+        """
+        
+        out = self.activation(x)
+        out = self.conv1(out)
+        if self.bn==True:
+            out = self.bn1(out)
+       
+        out = self.activation(out)
+        out = self.conv2(out)
+        if self.bn==True:
+            out = self.bn2(out)
+
+        if self.groups > 1:
+            out = self.conv_merge(out)
+
+        return self.skip_add.add(out, x)
+
+        # return out + x
+
+
+class FeatureFusionBlock_custom(nn.Module):
+    """Feature fusion block.
+    """
+
+    def __init__(self, features, activation, deconv=False, bn=False, expand=False, align_corners=True):
+        """Init.
+
+        Args:
+            features (int): number of features
+        """
+        super(FeatureFusionBlock_custom, self).__init__()
+
+        self.deconv = deconv
+        self.align_corners = align_corners
+
+        self.groups=1
+
+        self.expand = expand
+        out_features = features
+        if self.expand==True:
+            out_features = features//2
+        
+        self.out_conv = nn.Conv2d(features, out_features, kernel_size=1, stride=1, padding=0, bias=True, groups=1)
+
+        self.resConfUnit1 = ResidualConvUnit_custom(features, activation, bn)
+        self.resConfUnit2 = ResidualConvUnit_custom(features, activation, bn)
+        
+        self.skip_add = nn.quantized.FloatFunctional()
+
+    def forward(self, *xs):
+        """Forward pass.
+
+        Returns:
+            tensor: output
+        """
+        output = xs[0]
+
+        if len(xs) == 2:
+            res = self.resConfUnit1(xs[1])
+            output = self.skip_add.add(output, res)
+            # output += res
+
+        output = self.resConfUnit2(output)
+
+        output = nn.functional.interpolate(
+            output, scale_factor=2, mode="bilinear", align_corners=self.align_corners
+        )
+
+        output = self.out_conv(output)
+
+        return output
+
diff --git a/external/midas/dpt_depth.py b/external/midas/dpt_depth.py
new file mode 100644
index 0000000000000000000000000000000000000000..4e9aab5d2767dffea39da5b3f30e2798688216f1
--- /dev/null
+++ b/external/midas/dpt_depth.py
@@ -0,0 +1,109 @@
+import torch
+import torch.nn as nn
+import torch.nn.functional as F
+
+from .base_model import BaseModel
+from .blocks import (
+    FeatureFusionBlock,
+    FeatureFusionBlock_custom,
+    Interpolate,
+    _make_encoder,
+    forward_vit,
+)
+
+
+def _make_fusion_block(features, use_bn):
+    return FeatureFusionBlock_custom(
+        features,
+        nn.ReLU(False),
+        deconv=False,
+        bn=use_bn,
+        expand=False,
+        align_corners=True,
+    )
+
+
+class DPT(BaseModel):
+    def __init__(
+        self,
+        head,
+        features=256,
+        backbone="vitb_rn50_384",
+        readout="project",
+        channels_last=False,
+        use_bn=False,
+    ):
+
+        super(DPT, self).__init__()
+
+        self.channels_last = channels_last
+
+        hooks = {
+            "vitb_rn50_384": [0, 1, 8, 11],
+            "vitb16_384": [2, 5, 8, 11],
+            "vitl16_384": [5, 11, 17, 23],
+        }
+
+        # Instantiate backbone and reassemble blocks
+        self.pretrained, self.scratch = _make_encoder(
+            backbone,
+            features,
+            False, # Set to true of you want to train from scratch, uses ImageNet weights
+            groups=1,
+            expand=False,
+            exportable=False,
+            hooks=hooks[backbone],
+            use_readout=readout,
+        )
+
+        self.scratch.refinenet1 = _make_fusion_block(features, use_bn)
+        self.scratch.refinenet2 = _make_fusion_block(features, use_bn)
+        self.scratch.refinenet3 = _make_fusion_block(features, use_bn)
+        self.scratch.refinenet4 = _make_fusion_block(features, use_bn)
+
+        self.scratch.output_conv = head
+
+
+    def forward(self, x):
+        if self.channels_last == True:
+            x.contiguous(memory_format=torch.channels_last)
+
+        layer_1, layer_2, layer_3, layer_4 = forward_vit(self.pretrained, x)
+
+        layer_1_rn = self.scratch.layer1_rn(layer_1)
+        layer_2_rn = self.scratch.layer2_rn(layer_2)
+        layer_3_rn = self.scratch.layer3_rn(layer_3)
+        layer_4_rn = self.scratch.layer4_rn(layer_4)
+
+        path_4 = self.scratch.refinenet4(layer_4_rn)
+        path_3 = self.scratch.refinenet3(path_4, layer_3_rn)
+        path_2 = self.scratch.refinenet2(path_3, layer_2_rn)
+        path_1 = self.scratch.refinenet1(path_2, layer_1_rn)
+
+        out = self.scratch.output_conv(path_1)
+
+        return out
+
+
+class DPTDepthModel(DPT):
+    def __init__(self, path=None, non_negative=True, **kwargs):
+        features = kwargs["features"] if "features" in kwargs else 256
+
+        head = nn.Sequential(
+            nn.Conv2d(features, features // 2, kernel_size=3, stride=1, padding=1),
+            Interpolate(scale_factor=2, mode="bilinear", align_corners=True),
+            nn.Conv2d(features // 2, 32, kernel_size=3, stride=1, padding=1),
+            nn.ReLU(True),
+            nn.Conv2d(32, 1, kernel_size=1, stride=1, padding=0),
+            nn.ReLU(True) if non_negative else nn.Identity(),
+            nn.Identity(),
+        )
+
+        super().__init__(head, **kwargs)
+
+        if path is not None:
+           self.load(path)
+
+    def forward(self, x):
+        return super().forward(x).squeeze(dim=1)
+
diff --git a/external/midas/midas_net.py b/external/midas/midas_net.py
new file mode 100644
index 0000000000000000000000000000000000000000..8a954977800b0a0f48807e80fa63041910e33c1f
--- /dev/null
+++ b/external/midas/midas_net.py
@@ -0,0 +1,76 @@
+"""MidashNet: Network for monocular depth estimation trained by mixing several datasets.
+This file contains code that is adapted from
+https://github.com/thomasjpfan/pytorch_refinenet/blob/master/pytorch_refinenet/refinenet/refinenet_4cascade.py
+"""
+import torch
+import torch.nn as nn
+
+from .base_model import BaseModel
+from .blocks import FeatureFusionBlock, Interpolate, _make_encoder
+
+
+class MidasNet(BaseModel):
+    """Network for monocular depth estimation.
+    """
+
+    def __init__(self, path=None, features=256, non_negative=True):
+        """Init.
+
+        Args:
+            path (str, optional): Path to saved model. Defaults to None.
+            features (int, optional): Number of features. Defaults to 256.
+            backbone (str, optional): Backbone network for encoder. Defaults to resnet50
+        """
+        print("Loading weights: ", path)
+
+        super(MidasNet, self).__init__()
+
+        use_pretrained = False if path is None else True
+
+        self.pretrained, self.scratch = _make_encoder(backbone="resnext101_wsl", features=features, use_pretrained=use_pretrained)
+
+        self.scratch.refinenet4 = FeatureFusionBlock(features)
+        self.scratch.refinenet3 = FeatureFusionBlock(features)
+        self.scratch.refinenet2 = FeatureFusionBlock(features)
+        self.scratch.refinenet1 = FeatureFusionBlock(features)
+
+        self.scratch.output_conv = nn.Sequential(
+            nn.Conv2d(features, 128, kernel_size=3, stride=1, padding=1),
+            Interpolate(scale_factor=2, mode="bilinear"),
+            nn.Conv2d(128, 32, kernel_size=3, stride=1, padding=1),
+            nn.ReLU(True),
+            nn.Conv2d(32, 1, kernel_size=1, stride=1, padding=0),
+            nn.ReLU(True) if non_negative else nn.Identity(),
+        )
+
+        if path:
+            self.load(path)
+
+    def forward(self, x):
+        """Forward pass.
+
+        Args:
+            x (tensor): input data (image)
+
+        Returns:
+            tensor: depth
+        """
+
+        layer_1 = self.pretrained.layer1(x)
+        layer_2 = self.pretrained.layer2(layer_1)
+        layer_3 = self.pretrained.layer3(layer_2)
+        layer_4 = self.pretrained.layer4(layer_3)
+
+        layer_1_rn = self.scratch.layer1_rn(layer_1)
+        layer_2_rn = self.scratch.layer2_rn(layer_2)
+        layer_3_rn = self.scratch.layer3_rn(layer_3)
+        layer_4_rn = self.scratch.layer4_rn(layer_4)
+
+        path_4 = self.scratch.refinenet4(layer_4_rn)
+        path_3 = self.scratch.refinenet3(path_4, layer_3_rn)
+        path_2 = self.scratch.refinenet2(path_3, layer_2_rn)
+        path_1 = self.scratch.refinenet1(path_2, layer_1_rn)
+
+        out = self.scratch.output_conv(path_1)
+
+        return torch.squeeze(out, dim=1)
diff --git a/external/midas/midas_net_custom.py b/external/midas/midas_net_custom.py
new file mode 100644
index 0000000000000000000000000000000000000000..50e4acb5e53d5fabefe3dde16ab49c33c2b7797c
--- /dev/null
+++ b/external/midas/midas_net_custom.py
@@ -0,0 +1,128 @@
+"""MidashNet: Network for monocular depth estimation trained by mixing several datasets.
+This file contains code that is adapted from
+https://github.com/thomasjpfan/pytorch_refinenet/blob/master/pytorch_refinenet/refinenet/refinenet_4cascade.py
+"""
+import torch
+import torch.nn as nn
+
+from .base_model import BaseModel
+from .blocks import FeatureFusionBlock, FeatureFusionBlock_custom, Interpolate, _make_encoder
+
+
+class MidasNet_small(BaseModel):
+    """Network for monocular depth estimation.
+    """
+
+    def __init__(self, path=None, features=64, backbone="efficientnet_lite3", non_negative=True, exportable=True, channels_last=False, align_corners=True,
+        blocks={'expand': True}):
+        """Init.
+
+        Args:
+            path (str, optional): Path to saved model. Defaults to None.
+            features (int, optional): Number of features. Defaults to 256.
+            backbone (str, optional): Backbone network for encoder. Defaults to resnet50
+        """
+        print("Loading weights: ", path)
+
+        super(MidasNet_small, self).__init__()
+
+        use_pretrained = False if path else True
+                
+        self.channels_last = channels_last
+        self.blocks = blocks
+        self.backbone = backbone
+
+        self.groups = 1
+
+        features1=features
+        features2=features
+        features3=features
+        features4=features
+        self.expand = False
+        if "expand" in self.blocks and self.blocks['expand'] == True:
+            self.expand = True
+            features1=features
+            features2=features*2
+            features3=features*4
+            features4=features*8
+
+        self.pretrained, self.scratch = _make_encoder(self.backbone, features, use_pretrained, groups=self.groups, expand=self.expand, exportable=exportable)
+  
+        self.scratch.activation = nn.ReLU(False)    
+
+        self.scratch.refinenet4 = FeatureFusionBlock_custom(features4, self.scratch.activation, deconv=False, bn=False, expand=self.expand, align_corners=align_corners)
+        self.scratch.refinenet3 = FeatureFusionBlock_custom(features3, self.scratch.activation, deconv=False, bn=False, expand=self.expand, align_corners=align_corners)
+        self.scratch.refinenet2 = FeatureFusionBlock_custom(features2, self.scratch.activation, deconv=False, bn=False, expand=self.expand, align_corners=align_corners)
+        self.scratch.refinenet1 = FeatureFusionBlock_custom(features1, self.scratch.activation, deconv=False, bn=False, align_corners=align_corners)
+
+        
+        self.scratch.output_conv = nn.Sequential(
+            nn.Conv2d(features, features//2, kernel_size=3, stride=1, padding=1, groups=self.groups),
+            Interpolate(scale_factor=2, mode="bilinear"),
+            nn.Conv2d(features//2, 32, kernel_size=3, stride=1, padding=1),
+            self.scratch.activation,
+            nn.Conv2d(32, 1, kernel_size=1, stride=1, padding=0),
+            nn.ReLU(True) if non_negative else nn.Identity(),
+            nn.Identity(),
+        )
+        
+        if path:
+            self.load(path)
+
+
+    def forward(self, x):
+        """Forward pass.
+
+        Args:
+            x (tensor): input data (image)
+
+        Returns:
+            tensor: depth
+        """
+        if self.channels_last==True:
+            print("self.channels_last = ", self.channels_last)
+            x.contiguous(memory_format=torch.channels_last)
+
+
+        layer_1 = self.pretrained.layer1(x)
+        layer_2 = self.pretrained.layer2(layer_1)
+        layer_3 = self.pretrained.layer3(layer_2)
+        layer_4 = self.pretrained.layer4(layer_3)
+        
+        layer_1_rn = self.scratch.layer1_rn(layer_1)
+        layer_2_rn = self.scratch.layer2_rn(layer_2)
+        layer_3_rn = self.scratch.layer3_rn(layer_3)
+        layer_4_rn = self.scratch.layer4_rn(layer_4)
+
+
+        path_4 = self.scratch.refinenet4(layer_4_rn)
+        path_3 = self.scratch.refinenet3(path_4, layer_3_rn)
+        path_2 = self.scratch.refinenet2(path_3, layer_2_rn)
+        path_1 = self.scratch.refinenet1(path_2, layer_1_rn)
+        
+        out = self.scratch.output_conv(path_1)
+
+        return torch.squeeze(out, dim=1)
+
+
+
+def fuse_model(m):
+    prev_previous_type = nn.Identity()
+    prev_previous_name = ''
+    previous_type = nn.Identity()
+    previous_name = ''
+    for name, module in m.named_modules():
+        if prev_previous_type == nn.Conv2d and previous_type == nn.BatchNorm2d and type(module) == nn.ReLU:
+            # print("FUSED ", prev_previous_name, previous_name, name)
+            torch.quantization.fuse_modules(m, [prev_previous_name, previous_name, name], inplace=True)
+        elif prev_previous_type == nn.Conv2d and previous_type == nn.BatchNorm2d:
+            # print("FUSED ", prev_previous_name, previous_name)
+            torch.quantization.fuse_modules(m, [prev_previous_name, previous_name], inplace=True)
+        # elif previous_type == nn.Conv2d and type(module) == nn.ReLU:
+        #    print("FUSED ", previous_name, name)
+        #    torch.quantization.fuse_modules(m, [previous_name, name], inplace=True)
+
+        prev_previous_type = previous_type
+        prev_previous_name = previous_name
+        previous_type = type(module)
+        previous_name = name
\ No newline at end of file
diff --git a/external/midas/transforms.py b/external/midas/transforms.py
new file mode 100644
index 0000000000000000000000000000000000000000..350cbc11662633ad7f8968eb10be2e7de6e384e9
--- /dev/null
+++ b/external/midas/transforms.py
@@ -0,0 +1,234 @@
+import numpy as np
+import cv2
+import math
+
+
+def apply_min_size(sample, size, image_interpolation_method=cv2.INTER_AREA):
+    """Rezise the sample to ensure the given size. Keeps aspect ratio.
+
+    Args:
+        sample (dict): sample
+        size (tuple): image size
+
+    Returns:
+        tuple: new size
+    """
+    shape = list(sample["disparity"].shape)
+
+    if shape[0] >= size[0] and shape[1] >= size[1]:
+        return sample
+
+    scale = [0, 0]
+    scale[0] = size[0] / shape[0]
+    scale[1] = size[1] / shape[1]
+
+    scale = max(scale)
+
+    shape[0] = math.ceil(scale * shape[0])
+    shape[1] = math.ceil(scale * shape[1])
+
+    # resize
+    sample["image"] = cv2.resize(
+        sample["image"], tuple(shape[::-1]), interpolation=image_interpolation_method
+    )
+
+    sample["disparity"] = cv2.resize(
+        sample["disparity"], tuple(shape[::-1]), interpolation=cv2.INTER_NEAREST
+    )
+    sample["mask"] = cv2.resize(
+        sample["mask"].astype(np.float32),
+        tuple(shape[::-1]),
+        interpolation=cv2.INTER_NEAREST,
+    )
+    sample["mask"] = sample["mask"].astype(bool)
+
+    return tuple(shape)
+
+
+class Resize(object):
+    """Resize sample to given size (width, height).
+    """
+
+    def __init__(
+        self,
+        width,
+        height,
+        resize_target=True,
+        keep_aspect_ratio=False,
+        ensure_multiple_of=1,
+        resize_method="lower_bound",
+        image_interpolation_method=cv2.INTER_AREA,
+    ):
+        """Init.
+
+        Args:
+            width (int): desired output width
+            height (int): desired output height
+            resize_target (bool, optional):
+                True: Resize the full sample (image, mask, target).
+                False: Resize image only.
+                Defaults to True.
+            keep_aspect_ratio (bool, optional):
+                True: Keep the aspect ratio of the input sample.
+                Output sample might not have the given width and height, and
+                resize behaviour depends on the parameter 'resize_method'.
+                Defaults to False.
+            ensure_multiple_of (int, optional):
+                Output width and height is constrained to be multiple of this parameter.
+                Defaults to 1.
+            resize_method (str, optional):
+                "lower_bound": Output will be at least as large as the given size.
+                "upper_bound": Output will be at max as large as the given size. (Output size might be smaller than given size.)
+                "minimal": Scale as least as possible.  (Output size might be smaller than given size.)
+                Defaults to "lower_bound".
+        """
+        self.__width = width
+        self.__height = height
+
+        self.__resize_target = resize_target
+        self.__keep_aspect_ratio = keep_aspect_ratio
+        self.__multiple_of = ensure_multiple_of
+        self.__resize_method = resize_method
+        self.__image_interpolation_method = image_interpolation_method
+
+    def constrain_to_multiple_of(self, x, min_val=0, max_val=None):
+        y = (np.round(x / self.__multiple_of) * self.__multiple_of).astype(int)
+
+        if max_val is not None and y > max_val:
+            y = (np.floor(x / self.__multiple_of) * self.__multiple_of).astype(int)
+
+        if y < min_val:
+            y = (np.ceil(x / self.__multiple_of) * self.__multiple_of).astype(int)
+
+        return y
+
+    def get_size(self, width, height):
+        # determine new height and width
+        scale_height = self.__height / height
+        scale_width = self.__width / width
+
+        if self.__keep_aspect_ratio:
+            if self.__resize_method == "lower_bound":
+                # scale such that output size is lower bound
+                if scale_width > scale_height:
+                    # fit width
+                    scale_height = scale_width
+                else:
+                    # fit height
+                    scale_width = scale_height
+            elif self.__resize_method == "upper_bound":
+                # scale such that output size is upper bound
+                if scale_width < scale_height:
+                    # fit width
+                    scale_height = scale_width
+                else:
+                    # fit height
+                    scale_width = scale_height
+            elif self.__resize_method == "minimal":
+                # scale as least as possbile
+                if abs(1 - scale_width) < abs(1 - scale_height):
+                    # fit width
+                    scale_height = scale_width
+                else:
+                    # fit height
+                    scale_width = scale_height
+            else:
+                raise ValueError(
+                    f"resize_method {self.__resize_method} not implemented"
+                )
+
+        if self.__resize_method == "lower_bound":
+            new_height = self.constrain_to_multiple_of(
+                scale_height * height, min_val=self.__height
+            )
+            new_width = self.constrain_to_multiple_of(
+                scale_width * width, min_val=self.__width
+            )
+        elif self.__resize_method == "upper_bound":
+            new_height = self.constrain_to_multiple_of(
+                scale_height * height, max_val=self.__height
+            )
+            new_width = self.constrain_to_multiple_of(
+                scale_width * width, max_val=self.__width
+            )
+        elif self.__resize_method == "minimal":
+            new_height = self.constrain_to_multiple_of(scale_height * height)
+            new_width = self.constrain_to_multiple_of(scale_width * width)
+        else:
+            raise ValueError(f"resize_method {self.__resize_method} not implemented")
+
+        return (new_width, new_height)
+
+    def __call__(self, sample):
+        width, height = self.get_size(
+            sample["image"].shape[1], sample["image"].shape[0]
+        )
+
+        # resize sample
+        sample["image"] = cv2.resize(
+            sample["image"],
+            (width, height),
+            interpolation=self.__image_interpolation_method,
+        )
+
+        if self.__resize_target:
+            if "disparity" in sample:
+                sample["disparity"] = cv2.resize(
+                    sample["disparity"],
+                    (width, height),
+                    interpolation=cv2.INTER_NEAREST,
+                )
+
+            if "depth" in sample:
+                sample["depth"] = cv2.resize(
+                    sample["depth"], (width, height), interpolation=cv2.INTER_NEAREST
+                )
+
+            sample["mask"] = cv2.resize(
+                sample["mask"].astype(np.float32),
+                (width, height),
+                interpolation=cv2.INTER_NEAREST,
+            )
+            sample["mask"] = sample["mask"].astype(bool)
+
+        return sample
+
+
+class NormalizeImage(object):
+    """Normlize image by given mean and std.
+    """
+
+    def __init__(self, mean, std):
+        self.__mean = mean
+        self.__std = std
+
+    def __call__(self, sample):
+        sample["image"] = (sample["image"] - self.__mean) / self.__std
+
+        return sample
+
+
+class PrepareForNet(object):
+    """Prepare sample for usage as network input.
+    """
+
+    def __init__(self):
+        pass
+
+    def __call__(self, sample):
+        image = np.transpose(sample["image"], (2, 0, 1))
+        sample["image"] = np.ascontiguousarray(image).astype(np.float32)
+
+        if "mask" in sample:
+            sample["mask"] = sample["mask"].astype(np.float32)
+            sample["mask"] = np.ascontiguousarray(sample["mask"])
+
+        if "disparity" in sample:
+            disparity = sample["disparity"].astype(np.float32)
+            sample["disparity"] = np.ascontiguousarray(disparity)
+
+        if "depth" in sample:
+            depth = sample["depth"].astype(np.float32)
+            sample["depth"] = np.ascontiguousarray(depth)
+
+        return sample
diff --git a/external/midas/vit.py b/external/midas/vit.py
new file mode 100644
index 0000000000000000000000000000000000000000..ea46b1be88b261b0dec04f3da0256f5f66f88a74
--- /dev/null
+++ b/external/midas/vit.py
@@ -0,0 +1,491 @@
+import torch
+import torch.nn as nn
+import timm
+import types
+import math
+import torch.nn.functional as F
+
+
+class Slice(nn.Module):
+    def __init__(self, start_index=1):
+        super(Slice, self).__init__()
+        self.start_index = start_index
+
+    def forward(self, x):
+        return x[:, self.start_index :]
+
+
+class AddReadout(nn.Module):
+    def __init__(self, start_index=1):
+        super(AddReadout, self).__init__()
+        self.start_index = start_index
+
+    def forward(self, x):
+        if self.start_index == 2:
+            readout = (x[:, 0] + x[:, 1]) / 2
+        else:
+            readout = x[:, 0]
+        return x[:, self.start_index :] + readout.unsqueeze(1)
+
+
+class ProjectReadout(nn.Module):
+    def __init__(self, in_features, start_index=1):
+        super(ProjectReadout, self).__init__()
+        self.start_index = start_index
+
+        self.project = nn.Sequential(nn.Linear(2 * in_features, in_features), nn.GELU())
+
+    def forward(self, x):
+        readout = x[:, 0].unsqueeze(1).expand_as(x[:, self.start_index :])
+        features = torch.cat((x[:, self.start_index :], readout), -1)
+
+        return self.project(features)
+
+
+class Transpose(nn.Module):
+    def __init__(self, dim0, dim1):
+        super(Transpose, self).__init__()
+        self.dim0 = dim0
+        self.dim1 = dim1
+
+    def forward(self, x):
+        x = x.transpose(self.dim0, self.dim1)
+        return x
+
+
+def forward_vit(pretrained, x):
+    b, c, h, w = x.shape
+
+    glob = pretrained.model.forward_flex(x)
+
+    layer_1 = pretrained.activations["1"]
+    layer_2 = pretrained.activations["2"]
+    layer_3 = pretrained.activations["3"]
+    layer_4 = pretrained.activations["4"]
+
+    layer_1 = pretrained.act_postprocess1[0:2](layer_1)
+    layer_2 = pretrained.act_postprocess2[0:2](layer_2)
+    layer_3 = pretrained.act_postprocess3[0:2](layer_3)
+    layer_4 = pretrained.act_postprocess4[0:2](layer_4)
+
+    unflatten = nn.Sequential(
+        nn.Unflatten(
+            2,
+            torch.Size(
+                [
+                    h // pretrained.model.patch_size[1],
+                    w // pretrained.model.patch_size[0],
+                ]
+            ),
+        )
+    )
+
+    if layer_1.ndim == 3:
+        layer_1 = unflatten(layer_1)
+    if layer_2.ndim == 3:
+        layer_2 = unflatten(layer_2)
+    if layer_3.ndim == 3:
+        layer_3 = unflatten(layer_3)
+    if layer_4.ndim == 3:
+        layer_4 = unflatten(layer_4)
+
+    layer_1 = pretrained.act_postprocess1[3 : len(pretrained.act_postprocess1)](layer_1)
+    layer_2 = pretrained.act_postprocess2[3 : len(pretrained.act_postprocess2)](layer_2)
+    layer_3 = pretrained.act_postprocess3[3 : len(pretrained.act_postprocess3)](layer_3)
+    layer_4 = pretrained.act_postprocess4[3 : len(pretrained.act_postprocess4)](layer_4)
+
+    return layer_1, layer_2, layer_3, layer_4
+
+
+def _resize_pos_embed(self, posemb, gs_h, gs_w):
+    posemb_tok, posemb_grid = (
+        posemb[:, : self.start_index],
+        posemb[0, self.start_index :],
+    )
+
+    gs_old = int(math.sqrt(len(posemb_grid)))
+
+    posemb_grid = posemb_grid.reshape(1, gs_old, gs_old, -1).permute(0, 3, 1, 2)
+    posemb_grid = F.interpolate(posemb_grid, size=(gs_h, gs_w), mode="bilinear")
+    posemb_grid = posemb_grid.permute(0, 2, 3, 1).reshape(1, gs_h * gs_w, -1)
+
+    posemb = torch.cat([posemb_tok, posemb_grid], dim=1)
+
+    return posemb
+
+
+def forward_flex(self, x):
+    b, c, h, w = x.shape
+
+    pos_embed = self._resize_pos_embed(
+        self.pos_embed, h // self.patch_size[1], w // self.patch_size[0]
+    )
+
+    B = x.shape[0]
+
+    if hasattr(self.patch_embed, "backbone"):
+        x = self.patch_embed.backbone(x)
+        if isinstance(x, (list, tuple)):
+            x = x[-1]  # last feature if backbone outputs list/tuple of features
+
+    x = self.patch_embed.proj(x).flatten(2).transpose(1, 2)
+
+    if getattr(self, "dist_token", None) is not None:
+        cls_tokens = self.cls_token.expand(
+            B, -1, -1
+        )  # stole cls_tokens impl from Phil Wang, thanks
+        dist_token = self.dist_token.expand(B, -1, -1)
+        x = torch.cat((cls_tokens, dist_token, x), dim=1)
+    else:
+        cls_tokens = self.cls_token.expand(
+            B, -1, -1
+        )  # stole cls_tokens impl from Phil Wang, thanks
+        x = torch.cat((cls_tokens, x), dim=1)
+
+    x = x + pos_embed
+    x = self.pos_drop(x)
+
+    for blk in self.blocks:
+        x = blk(x)
+
+    x = self.norm(x)
+
+    return x
+
+
+activations = {}
+
+
+def get_activation(name):
+    def hook(model, input, output):
+        activations[name] = output
+
+    return hook
+
+
+def get_readout_oper(vit_features, features, use_readout, start_index=1):
+    if use_readout == "ignore":
+        readout_oper = [Slice(start_index)] * len(features)
+    elif use_readout == "add":
+        readout_oper = [AddReadout(start_index)] * len(features)
+    elif use_readout == "project":
+        readout_oper = [
+            ProjectReadout(vit_features, start_index) for out_feat in features
+        ]
+    else:
+        assert (
+            False
+        ), "wrong operation for readout token, use_readout can be 'ignore', 'add', or 'project'"
+
+    return readout_oper
+
+
+def _make_vit_b16_backbone(
+    model,
+    features=[96, 192, 384, 768],
+    size=[384, 384],
+    hooks=[2, 5, 8, 11],
+    vit_features=768,
+    use_readout="ignore",
+    start_index=1,
+):
+    pretrained = nn.Module()
+
+    pretrained.model = model
+    pretrained.model.blocks[hooks[0]].register_forward_hook(get_activation("1"))
+    pretrained.model.blocks[hooks[1]].register_forward_hook(get_activation("2"))
+    pretrained.model.blocks[hooks[2]].register_forward_hook(get_activation("3"))
+    pretrained.model.blocks[hooks[3]].register_forward_hook(get_activation("4"))
+
+    pretrained.activations = activations
+
+    readout_oper = get_readout_oper(vit_features, features, use_readout, start_index)
+
+    # 32, 48, 136, 384
+    pretrained.act_postprocess1 = nn.Sequential(
+        readout_oper[0],
+        Transpose(1, 2),
+        nn.Unflatten(2, torch.Size([size[0] // 16, size[1] // 16])),
+        nn.Conv2d(
+            in_channels=vit_features,
+            out_channels=features[0],
+            kernel_size=1,
+            stride=1,
+            padding=0,
+        ),
+        nn.ConvTranspose2d(
+            in_channels=features[0],
+            out_channels=features[0],
+            kernel_size=4,
+            stride=4,
+            padding=0,
+            bias=True,
+            dilation=1,
+            groups=1,
+        ),
+    )
+
+    pretrained.act_postprocess2 = nn.Sequential(
+        readout_oper[1],
+        Transpose(1, 2),
+        nn.Unflatten(2, torch.Size([size[0] // 16, size[1] // 16])),
+        nn.Conv2d(
+            in_channels=vit_features,
+            out_channels=features[1],
+            kernel_size=1,
+            stride=1,
+            padding=0,
+        ),
+        nn.ConvTranspose2d(
+            in_channels=features[1],
+            out_channels=features[1],
+            kernel_size=2,
+            stride=2,
+            padding=0,
+            bias=True,
+            dilation=1,
+            groups=1,
+        ),
+    )
+
+    pretrained.act_postprocess3 = nn.Sequential(
+        readout_oper[2],
+        Transpose(1, 2),
+        nn.Unflatten(2, torch.Size([size[0] // 16, size[1] // 16])),
+        nn.Conv2d(
+            in_channels=vit_features,
+            out_channels=features[2],
+            kernel_size=1,
+            stride=1,
+            padding=0,
+        ),
+    )
+
+    pretrained.act_postprocess4 = nn.Sequential(
+        readout_oper[3],
+        Transpose(1, 2),
+        nn.Unflatten(2, torch.Size([size[0] // 16, size[1] // 16])),
+        nn.Conv2d(
+            in_channels=vit_features,
+            out_channels=features[3],
+            kernel_size=1,
+            stride=1,
+            padding=0,
+        ),
+        nn.Conv2d(
+            in_channels=features[3],
+            out_channels=features[3],
+            kernel_size=3,
+            stride=2,
+            padding=1,
+        ),
+    )
+
+    pretrained.model.start_index = start_index
+    pretrained.model.patch_size = [16, 16]
+
+    # We inject this function into the VisionTransformer instances so that
+    # we can use it with interpolated position embeddings without modifying the library source.
+    pretrained.model.forward_flex = types.MethodType(forward_flex, pretrained.model)
+    pretrained.model._resize_pos_embed = types.MethodType(
+        _resize_pos_embed, pretrained.model
+    )
+
+    return pretrained
+
+
+def _make_pretrained_vitl16_384(pretrained, use_readout="ignore", hooks=None):
+    model = timm.create_model("vit_large_patch16_384", pretrained=pretrained)
+
+    hooks = [5, 11, 17, 23] if hooks == None else hooks
+    return _make_vit_b16_backbone(
+        model,
+        features=[256, 512, 1024, 1024],
+        hooks=hooks,
+        vit_features=1024,
+        use_readout=use_readout,
+    )
+
+
+def _make_pretrained_vitb16_384(pretrained, use_readout="ignore", hooks=None):
+    model = timm.create_model("vit_base_patch16_384", pretrained=pretrained)
+
+    hooks = [2, 5, 8, 11] if hooks == None else hooks
+    return _make_vit_b16_backbone(
+        model, features=[96, 192, 384, 768], hooks=hooks, use_readout=use_readout
+    )
+
+
+def _make_pretrained_deitb16_384(pretrained, use_readout="ignore", hooks=None):
+    model = timm.create_model("vit_deit_base_patch16_384", pretrained=pretrained)
+
+    hooks = [2, 5, 8, 11] if hooks == None else hooks
+    return _make_vit_b16_backbone(
+        model, features=[96, 192, 384, 768], hooks=hooks, use_readout=use_readout
+    )
+
+
+def _make_pretrained_deitb16_distil_384(pretrained, use_readout="ignore", hooks=None):
+    model = timm.create_model(
+        "vit_deit_base_distilled_patch16_384", pretrained=pretrained
+    )
+
+    hooks = [2, 5, 8, 11] if hooks == None else hooks
+    return _make_vit_b16_backbone(
+        model,
+        features=[96, 192, 384, 768],
+        hooks=hooks,
+        use_readout=use_readout,
+        start_index=2,
+    )
+
+
+def _make_vit_b_rn50_backbone(
+    model,
+    features=[256, 512, 768, 768],
+    size=[384, 384],
+    hooks=[0, 1, 8, 11],
+    vit_features=768,
+    use_vit_only=False,
+    use_readout="ignore",
+    start_index=1,
+):
+    pretrained = nn.Module()
+
+    pretrained.model = model
+
+    if use_vit_only == True:
+        pretrained.model.blocks[hooks[0]].register_forward_hook(get_activation("1"))
+        pretrained.model.blocks[hooks[1]].register_forward_hook(get_activation("2"))
+    else:
+        pretrained.model.patch_embed.backbone.stages[0].register_forward_hook(
+            get_activation("1")
+        )
+        pretrained.model.patch_embed.backbone.stages[1].register_forward_hook(
+            get_activation("2")
+        )
+
+    pretrained.model.blocks[hooks[2]].register_forward_hook(get_activation("3"))
+    pretrained.model.blocks[hooks[3]].register_forward_hook(get_activation("4"))
+
+    pretrained.activations = activations
+
+    readout_oper = get_readout_oper(vit_features, features, use_readout, start_index)
+
+    if use_vit_only == True:
+        pretrained.act_postprocess1 = nn.Sequential(
+            readout_oper[0],
+            Transpose(1, 2),
+            nn.Unflatten(2, torch.Size([size[0] // 16, size[1] // 16])),
+            nn.Conv2d(
+                in_channels=vit_features,
+                out_channels=features[0],
+                kernel_size=1,
+                stride=1,
+                padding=0,
+            ),
+            nn.ConvTranspose2d(
+                in_channels=features[0],
+                out_channels=features[0],
+                kernel_size=4,
+                stride=4,
+                padding=0,
+                bias=True,
+                dilation=1,
+                groups=1,
+            ),
+        )
+
+        pretrained.act_postprocess2 = nn.Sequential(
+            readout_oper[1],
+            Transpose(1, 2),
+            nn.Unflatten(2, torch.Size([size[0] // 16, size[1] // 16])),
+            nn.Conv2d(
+                in_channels=vit_features,
+                out_channels=features[1],
+                kernel_size=1,
+                stride=1,
+                padding=0,
+            ),
+            nn.ConvTranspose2d(
+                in_channels=features[1],
+                out_channels=features[1],
+                kernel_size=2,
+                stride=2,
+                padding=0,
+                bias=True,
+                dilation=1,
+                groups=1,
+            ),
+        )
+    else:
+        pretrained.act_postprocess1 = nn.Sequential(
+            nn.Identity(), nn.Identity(), nn.Identity()
+        )
+        pretrained.act_postprocess2 = nn.Sequential(
+            nn.Identity(), nn.Identity(), nn.Identity()
+        )
+
+    pretrained.act_postprocess3 = nn.Sequential(
+        readout_oper[2],
+        Transpose(1, 2),
+        nn.Unflatten(2, torch.Size([size[0] // 16, size[1] // 16])),
+        nn.Conv2d(
+            in_channels=vit_features,
+            out_channels=features[2],
+            kernel_size=1,
+            stride=1,
+            padding=0,
+        ),
+    )
+
+    pretrained.act_postprocess4 = nn.Sequential(
+        readout_oper[3],
+        Transpose(1, 2),
+        nn.Unflatten(2, torch.Size([size[0] // 16, size[1] // 16])),
+        nn.Conv2d(
+            in_channels=vit_features,
+            out_channels=features[3],
+            kernel_size=1,
+            stride=1,
+            padding=0,
+        ),
+        nn.Conv2d(
+            in_channels=features[3],
+            out_channels=features[3],
+            kernel_size=3,
+            stride=2,
+            padding=1,
+        ),
+    )
+
+    pretrained.model.start_index = start_index
+    pretrained.model.patch_size = [16, 16]
+
+    # We inject this function into the VisionTransformer instances so that
+    # we can use it with interpolated position embeddings without modifying the library source.
+    pretrained.model.forward_flex = types.MethodType(forward_flex, pretrained.model)
+
+    # We inject this function into the VisionTransformer instances so that
+    # we can use it with interpolated position embeddings without modifying the library source.
+    pretrained.model._resize_pos_embed = types.MethodType(
+        _resize_pos_embed, pretrained.model
+    )
+
+    return pretrained
+
+
+def _make_pretrained_vitb_rn50_384(
+    pretrained, use_readout="ignore", hooks=None, use_vit_only=False
+):
+    model = timm.create_model("vit_base_resnet50_384", pretrained=pretrained)
+
+    hooks = [0, 1, 8, 11] if hooks == None else hooks
+    return _make_vit_b_rn50_backbone(
+        model,
+        features=[256, 512, 768, 768],
+        size=[384, 384],
+        hooks=hooks,
+        use_vit_only=use_vit_only,
+        use_readout=use_readout,
+    )
diff --git a/external/realesrgan/__init__.py b/external/realesrgan/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..bfea78f284116dee22510d4aa91f9e44afb7d472
--- /dev/null
+++ b/external/realesrgan/__init__.py
@@ -0,0 +1,6 @@
+# flake8: noqa
+from .archs import *
+from .data import *
+from .models import *
+from .utils import *
+#from .version import *
diff --git a/external/realesrgan/archs/__init__.py b/external/realesrgan/archs/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..f3fbbf3b78e33b61fd4c33a564a9a617010d90de
--- /dev/null
+++ b/external/realesrgan/archs/__init__.py
@@ -0,0 +1,10 @@
+import importlib
+from basicsr.utils import scandir
+from os import path as osp
+
+# automatically scan and import arch modules for registry
+# scan all the files that end with '_arch.py' under the archs folder
+arch_folder = osp.dirname(osp.abspath(__file__))
+arch_filenames = [osp.splitext(osp.basename(v))[0] for v in scandir(arch_folder) if v.endswith('_arch.py')]
+# import all the arch modules
+_arch_modules = [importlib.import_module(f'realesrgan.archs.{file_name}') for file_name in arch_filenames]
diff --git a/external/realesrgan/archs/discriminator_arch.py b/external/realesrgan/archs/discriminator_arch.py
new file mode 100644
index 0000000000000000000000000000000000000000..4b66ab1226d6793de846bc9828bbe427031a0e2d
--- /dev/null
+++ b/external/realesrgan/archs/discriminator_arch.py
@@ -0,0 +1,67 @@
+from basicsr.utils.registry import ARCH_REGISTRY
+from torch import nn as nn
+from torch.nn import functional as F
+from torch.nn.utils import spectral_norm
+
+
+@ARCH_REGISTRY.register()
+class UNetDiscriminatorSN(nn.Module):
+    """Defines a U-Net discriminator with spectral normalization (SN)
+
+    It is used in Real-ESRGAN: Training Real-World Blind Super-Resolution with Pure Synthetic Data.
+
+    Arg:
+        num_in_ch (int): Channel number of inputs. Default: 3.
+        num_feat (int): Channel number of base intermediate features. Default: 64.
+        skip_connection (bool): Whether to use skip connections between U-Net. Default: True.
+    """
+
+    def __init__(self, num_in_ch, num_feat=64, skip_connection=True):
+        super(UNetDiscriminatorSN, self).__init__()
+        self.skip_connection = skip_connection
+        norm = spectral_norm
+        # the first convolution
+        self.conv0 = nn.Conv2d(num_in_ch, num_feat, kernel_size=3, stride=1, padding=1)
+        # downsample
+        self.conv1 = norm(nn.Conv2d(num_feat, num_feat * 2, 4, 2, 1, bias=False))
+        self.conv2 = norm(nn.Conv2d(num_feat * 2, num_feat * 4, 4, 2, 1, bias=False))
+        self.conv3 = norm(nn.Conv2d(num_feat * 4, num_feat * 8, 4, 2, 1, bias=False))
+        # upsample
+        self.conv4 = norm(nn.Conv2d(num_feat * 8, num_feat * 4, 3, 1, 1, bias=False))
+        self.conv5 = norm(nn.Conv2d(num_feat * 4, num_feat * 2, 3, 1, 1, bias=False))
+        self.conv6 = norm(nn.Conv2d(num_feat * 2, num_feat, 3, 1, 1, bias=False))
+        # extra convolutions
+        self.conv7 = norm(nn.Conv2d(num_feat, num_feat, 3, 1, 1, bias=False))
+        self.conv8 = norm(nn.Conv2d(num_feat, num_feat, 3, 1, 1, bias=False))
+        self.conv9 = nn.Conv2d(num_feat, 1, 3, 1, 1)
+
+    def forward(self, x):
+        # downsample
+        x0 = F.leaky_relu(self.conv0(x), negative_slope=0.2, inplace=True)
+        x1 = F.leaky_relu(self.conv1(x0), negative_slope=0.2, inplace=True)
+        x2 = F.leaky_relu(self.conv2(x1), negative_slope=0.2, inplace=True)
+        x3 = F.leaky_relu(self.conv3(x2), negative_slope=0.2, inplace=True)
+
+        # upsample
+        x3 = F.interpolate(x3, scale_factor=2, mode='bilinear', align_corners=False)
+        x4 = F.leaky_relu(self.conv4(x3), negative_slope=0.2, inplace=True)
+
+        if self.skip_connection:
+            x4 = x4 + x2
+        x4 = F.interpolate(x4, scale_factor=2, mode='bilinear', align_corners=False)
+        x5 = F.leaky_relu(self.conv5(x4), negative_slope=0.2, inplace=True)
+
+        if self.skip_connection:
+            x5 = x5 + x1
+        x5 = F.interpolate(x5, scale_factor=2, mode='bilinear', align_corners=False)
+        x6 = F.leaky_relu(self.conv6(x5), negative_slope=0.2, inplace=True)
+
+        if self.skip_connection:
+            x6 = x6 + x0
+
+        # extra convolutions
+        out = F.leaky_relu(self.conv7(x6), negative_slope=0.2, inplace=True)
+        out = F.leaky_relu(self.conv8(out), negative_slope=0.2, inplace=True)
+        out = self.conv9(out)
+
+        return out
diff --git a/external/realesrgan/archs/srvgg_arch.py b/external/realesrgan/archs/srvgg_arch.py
new file mode 100644
index 0000000000000000000000000000000000000000..12ecf436886c7f8886bf3902174ae40c9c33928d
--- /dev/null
+++ b/external/realesrgan/archs/srvgg_arch.py
@@ -0,0 +1,69 @@
+from basicsr.utils.registry import ARCH_REGISTRY
+from torch import nn as nn
+from torch.nn import functional as F
+
+
+@ARCH_REGISTRY.register()
+class SRVGGNetCompact(nn.Module):
+    """A compact VGG-style network structure for super-resolution.
+
+    It is a compact network structure, which performs upsampling in the last layer and no convolution is
+    conducted on the HR feature space.
+
+    Args:
+        num_in_ch (int): Channel number of inputs. Default: 3.
+        num_out_ch (int): Channel number of outputs. Default: 3.
+        num_feat (int): Channel number of intermediate features. Default: 64.
+        num_conv (int): Number of convolution layers in the body network. Default: 16.
+        upscale (int): Upsampling factor. Default: 4.
+        act_type (str): Activation type, options: 'relu', 'prelu', 'leakyrelu'. Default: prelu.
+    """
+
+    def __init__(self, num_in_ch = 3, num_out_ch = 3, num_feat = 64, num_conv = 16, upscale = 4, act_type = 'prelu'):
+        super(SRVGGNetCompact, self).__init__()
+        self.num_in_ch = num_in_ch
+        self.num_out_ch = num_out_ch
+        self.num_feat = num_feat
+        self.num_conv = num_conv
+        self.upscale = upscale
+        self.act_type = act_type
+
+        self.body = nn.ModuleList()
+        # the first conv
+        self.body.append(nn.Conv2d(num_in_ch, num_feat, 3, 1, 1))
+        # the first activation
+        if act_type == 'relu':
+            activation = nn.ReLU(inplace = True)
+        elif act_type == 'prelu':
+            activation = nn.PReLU(num_parameters = num_feat)
+        elif act_type == 'leakyrelu':
+            activation = nn.LeakyReLU(negative_slope = 0.1, inplace = True)
+        self.body.append(activation)
+
+        # the body structure
+        for _ in range(num_conv):
+            self.body.append(nn.Conv2d(num_feat, num_feat, 3, 1, 1))
+            # activation
+            if act_type == 'relu':
+                activation = nn.ReLU(inplace = True)
+            elif act_type == 'prelu':
+                activation = nn.PReLU(num_parameters = num_feat)
+            elif act_type == 'leakyrelu':
+                activation = nn.LeakyReLU(negative_slope = 0.1, inplace = True)
+            self.body.append(activation)
+
+        # the last conv
+        self.body.append(nn.Conv2d(num_feat, num_out_ch * upscale * upscale, 3, 1, 1))
+        # upsample
+        self.upsampler = nn.PixelShuffle(upscale)
+
+    def forward(self, x):
+        out = x
+        for i in range(0, len(self.body)):
+            out = self.body[i](out)
+
+        out = self.upsampler(out)
+        # add the nearest upsampled image, so that the network learns the residual
+        base = F.interpolate(x, scale_factor = self.upscale, mode = 'nearest')
+        out += base
+        return out
diff --git a/external/realesrgan/data/__init__.py b/external/realesrgan/data/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..a3f8fdd1aa47c12de9687c578094303eb7369246
--- /dev/null
+++ b/external/realesrgan/data/__init__.py
@@ -0,0 +1,10 @@
+import importlib
+from basicsr.utils import scandir
+from os import path as osp
+
+# automatically scan and import dataset modules for registry
+# scan all the files that end with '_dataset.py' under the data folder
+data_folder = osp.dirname(osp.abspath(__file__))
+dataset_filenames = [osp.splitext(osp.basename(v))[0] for v in scandir(data_folder) if v.endswith('_dataset.py')]
+# import all the dataset modules
+_dataset_modules = [importlib.import_module(f'realesrgan.data.{file_name}') for file_name in dataset_filenames]
diff --git a/external/realesrgan/data/realesrgan_dataset.py b/external/realesrgan/data/realesrgan_dataset.py
new file mode 100644
index 0000000000000000000000000000000000000000..4cf2d9e6583a6789b771679734ce55bb8a22e628
--- /dev/null
+++ b/external/realesrgan/data/realesrgan_dataset.py
@@ -0,0 +1,192 @@
+import cv2
+import math
+import numpy as np
+import os
+import os.path as osp
+import random
+import time
+import torch
+from basicsr.data.degradations import circular_lowpass_kernel, random_mixed_kernels
+from basicsr.data.transforms import augment
+from basicsr.utils import FileClient, get_root_logger, imfrombytes, img2tensor
+from basicsr.utils.registry import DATASET_REGISTRY
+from torch.utils import data as data
+
+
+@DATASET_REGISTRY.register()
+class RealESRGANDataset(data.Dataset):
+    """Dataset used for Real-ESRGAN model:
+    Real-ESRGAN: Training Real-World Blind Super-Resolution with Pure Synthetic Data.
+
+    It loads gt (Ground-Truth) images, and augments them.
+    It also generates blur kernels and sinc kernels for generating low-quality images.
+    Note that the low-quality images are processed in tensors on GPUS for faster processing.
+
+    Args:
+        opt (dict): Config for train datasets. It contains the following keys:
+            dataroot_gt (str): Data root path for gt.
+            meta_info (str): Path for meta information file.
+            io_backend (dict): IO backend type and other kwarg.
+            use_hflip (bool): Use horizontal flips.
+            use_rot (bool): Use rotation (use vertical flip and transposing h and w for implementation).
+            Please see more options in the codes.
+    """
+
+    def __init__(self, opt):
+        super(RealESRGANDataset, self).__init__()
+        self.opt = opt
+        self.file_client = None
+        self.io_backend_opt = opt['io_backend']
+        self.gt_folder = opt['dataroot_gt']
+
+        # file client (lmdb io backend)
+        if self.io_backend_opt['type'] == 'lmdb':
+            self.io_backend_opt['db_paths'] = [self.gt_folder]
+            self.io_backend_opt['client_keys'] = ['gt']
+            if not self.gt_folder.endswith('.lmdb'):
+                raise ValueError(f"'dataroot_gt' should end with '.lmdb', but received {self.gt_folder}")
+            with open(osp.join(self.gt_folder, 'meta_info.txt')) as fin:
+                self.paths = [line.split('.')[0] for line in fin]
+        else:
+            # disk backend with meta_info
+            # Each line in the meta_info describes the relative path to an image
+            with open(self.opt['meta_info']) as fin:
+                paths = [line.strip().split(' ')[0] for line in fin]
+                self.paths = [os.path.join(self.gt_folder, v) for v in paths]
+
+        # blur settings for the first degradation
+        self.blur_kernel_size = opt['blur_kernel_size']
+        self.kernel_list = opt['kernel_list']
+        self.kernel_prob = opt['kernel_prob']  # a list for each kernel probability
+        self.blur_sigma = opt['blur_sigma']
+        self.betag_range = opt['betag_range']  # betag used in generalized Gaussian blur kernels
+        self.betap_range = opt['betap_range']  # betap used in plateau blur kernels
+        self.sinc_prob = opt['sinc_prob']  # the probability for sinc filters
+
+        # blur settings for the second degradation
+        self.blur_kernel_size2 = opt['blur_kernel_size2']
+        self.kernel_list2 = opt['kernel_list2']
+        self.kernel_prob2 = opt['kernel_prob2']
+        self.blur_sigma2 = opt['blur_sigma2']
+        self.betag_range2 = opt['betag_range2']
+        self.betap_range2 = opt['betap_range2']
+        self.sinc_prob2 = opt['sinc_prob2']
+
+        # a final sinc filter
+        self.final_sinc_prob = opt['final_sinc_prob']
+
+        self.kernel_range = [2 * v + 1 for v in range(3, 11)]  # kernel size ranges from 7 to 21
+        # TODO: kernel range is now hard-coded, should be in the configure file
+        self.pulse_tensor = torch.zeros(21, 21).float()  # convolving with pulse tensor brings no blurry effect
+        self.pulse_tensor[10, 10] = 1
+
+    def __getitem__(self, index):
+        if self.file_client is None:
+            self.file_client = FileClient(self.io_backend_opt.pop('type'), **self.io_backend_opt)
+
+        # -------------------------------- Load gt images -------------------------------- #
+        # Shape: (h, w, c); channel order: BGR; image range: [0, 1], float32.
+        gt_path = self.paths[index]
+        # avoid errors caused by high latency in reading files
+        retry = 3
+        while retry > 0:
+            try:
+                img_bytes = self.file_client.get(gt_path, 'gt')
+            except (IOError, OSError) as e:
+                logger = get_root_logger()
+                logger.warn(f'File client error: {e}, remaining retry times: {retry - 1}')
+                # change another file to read
+                index = random.randint(0, self.__len__())
+                gt_path = self.paths[index]
+                time.sleep(1)  # sleep 1s for occasional server congestion
+            else:
+                break
+            finally:
+                retry -= 1
+        img_gt = imfrombytes(img_bytes, float32=True)
+
+        # -------------------- Do augmentation for training: flip, rotation -------------------- #
+        img_gt = augment(img_gt, self.opt['use_hflip'], self.opt['use_rot'])
+
+        # crop or pad to 400
+        # TODO: 400 is hard-coded. You may change it accordingly
+        h, w = img_gt.shape[0:2]
+        crop_pad_size = 400
+        # pad
+        if h < crop_pad_size or w < crop_pad_size:
+            pad_h = max(0, crop_pad_size - h)
+            pad_w = max(0, crop_pad_size - w)
+            img_gt = cv2.copyMakeBorder(img_gt, 0, pad_h, 0, pad_w, cv2.BORDER_REFLECT_101)
+        # crop
+        if img_gt.shape[0] > crop_pad_size or img_gt.shape[1] > crop_pad_size:
+            h, w = img_gt.shape[0:2]
+            # randomly choose top and left coordinates
+            top = random.randint(0, h - crop_pad_size)
+            left = random.randint(0, w - crop_pad_size)
+            img_gt = img_gt[top:top + crop_pad_size, left:left + crop_pad_size, ...]
+
+        # ------------------------ Generate kernels (used in the first degradation) ------------------------ #
+        kernel_size = random.choice(self.kernel_range)
+        if np.random.uniform() < self.opt['sinc_prob']:
+            # this sinc filter setting is for kernels ranging from [7, 21]
+            if kernel_size < 13:
+                omega_c = np.random.uniform(np.pi / 3, np.pi)
+            else:
+                omega_c = np.random.uniform(np.pi / 5, np.pi)
+            kernel = circular_lowpass_kernel(omega_c, kernel_size, pad_to=False)
+        else:
+            kernel = random_mixed_kernels(
+                self.kernel_list,
+                self.kernel_prob,
+                kernel_size,
+                self.blur_sigma,
+                self.blur_sigma, [-math.pi, math.pi],
+                self.betag_range,
+                self.betap_range,
+                noise_range=None)
+        # pad kernel
+        pad_size = (21 - kernel_size) // 2
+        kernel = np.pad(kernel, ((pad_size, pad_size), (pad_size, pad_size)))
+
+        # ------------------------ Generate kernels (used in the second degradation) ------------------------ #
+        kernel_size = random.choice(self.kernel_range)
+        if np.random.uniform() < self.opt['sinc_prob2']:
+            if kernel_size < 13:
+                omega_c = np.random.uniform(np.pi / 3, np.pi)
+            else:
+                omega_c = np.random.uniform(np.pi / 5, np.pi)
+            kernel2 = circular_lowpass_kernel(omega_c, kernel_size, pad_to=False)
+        else:
+            kernel2 = random_mixed_kernels(
+                self.kernel_list2,
+                self.kernel_prob2,
+                kernel_size,
+                self.blur_sigma2,
+                self.blur_sigma2, [-math.pi, math.pi],
+                self.betag_range2,
+                self.betap_range2,
+                noise_range=None)
+
+        # pad kernel
+        pad_size = (21 - kernel_size) // 2
+        kernel2 = np.pad(kernel2, ((pad_size, pad_size), (pad_size, pad_size)))
+
+        # ------------------------------------- the final sinc kernel ------------------------------------- #
+        if np.random.uniform() < self.opt['final_sinc_prob']:
+            kernel_size = random.choice(self.kernel_range)
+            omega_c = np.random.uniform(np.pi / 3, np.pi)
+            sinc_kernel = circular_lowpass_kernel(omega_c, kernel_size, pad_to=21)
+            sinc_kernel = torch.FloatTensor(sinc_kernel)
+        else:
+            sinc_kernel = self.pulse_tensor
+
+        # BGR to RGB, HWC to CHW, numpy to tensor
+        img_gt = img2tensor([img_gt], bgr2rgb=True, float32=True)[0]
+        kernel = torch.FloatTensor(kernel)
+        kernel2 = torch.FloatTensor(kernel2)
+
+        return_d = {'gt': img_gt, 'kernel1': kernel, 'kernel2': kernel2, 'sinc_kernel': sinc_kernel, 'gt_path': gt_path}
+        return return_d
+
+    def __len__(self):
+        return len(self.paths)
diff --git a/external/realesrgan/data/realesrgan_paired_dataset.py b/external/realesrgan/data/realesrgan_paired_dataset.py
new file mode 100644
index 0000000000000000000000000000000000000000..29751ae6749dabd3b8d1ca657f4a4cd392a9080e
--- /dev/null
+++ b/external/realesrgan/data/realesrgan_paired_dataset.py
@@ -0,0 +1,117 @@
+import os
+from basicsr.data.data_util import paired_paths_from_folder, paired_paths_from_lmdb
+from basicsr.data.transforms import augment, paired_random_crop
+from basicsr.utils import FileClient
+from basicsr.utils.img_util import imfrombytes, img2tensor
+from basicsr.utils.registry import DATASET_REGISTRY
+from torch.utils import data as data
+from torchvision.transforms.functional import normalize
+
+
+@DATASET_REGISTRY.register()
+class RealESRGANPairedDataset(data.Dataset):
+    """Paired image dataset for image restoration.
+
+    Read LQ (Low Quality, e.g. LR (Low Resolution), blurry, noisy, etc) and GT image pairs.
+
+    There are three modes:
+    1. 'lmdb': Use lmdb files.
+        If opt['io_backend'] == lmdb.
+    2. 'meta_info': Use meta information file to generate paths.
+        If opt['io_backend'] != lmdb and opt['meta_info'] is not None.
+    3. 'folder': Scan folders to generate paths.
+        The rest.
+
+    Args:
+        opt (dict): Config for train datasets. It contains the following keys:
+            dataroot_gt (str): Data root path for gt.
+            dataroot_lq (str): Data root path for lq.
+            meta_info (str): Path for meta information file.
+            io_backend (dict): IO backend type and other kwarg.
+            filename_tmpl (str): Template for each filename. Note that the template excludes the file extension.
+                Default: '{}'.
+            gt_size (int): Cropped patched size for gt patches.
+            use_hflip (bool): Use horizontal flips.
+            use_rot (bool): Use rotation (use vertical flip and transposing h
+                and w for implementation).
+
+            scale (bool): Scale, which will be added automatically.
+            phase (str): 'train' or 'val'.
+    """
+
+    def __init__(self, opt):
+        super(RealESRGANPairedDataset, self).__init__()
+        self.opt = opt
+        self.file_client = None
+        self.io_backend_opt = opt['io_backend']
+        # mean and std for normalizing the input images
+        self.mean = opt['mean'] if 'mean' in opt else None
+        self.std = opt['std'] if 'std' in opt else None
+        
+        in_channels = opt['in_channels'] if 'in_channels' in opt else 3
+        if in_channels == 1:
+            self.flag = 'grayscale'
+        elif in_channels == 3:
+            self.flag = 'color'
+        else:
+            self.flag = 'unchanged'
+        
+        self.gt_folder, self.lq_folder = opt['dataroot_gt'], opt['dataroot_lq']
+        self.filename_tmpl = opt['filename_tmpl'] if 'filename_tmpl' in opt else '{}'
+
+        # file client (lmdb io backend)
+        if self.io_backend_opt['type'] == 'lmdb':
+            self.io_backend_opt['db_paths'] = [self.lq_folder, self.gt_folder]
+            self.io_backend_opt['client_keys'] = ['lq', 'gt']
+            self.paths = paired_paths_from_lmdb([self.lq_folder, self.gt_folder], ['lq', 'gt'])
+        elif 'meta_info' in self.opt and self.opt['meta_info'] is not None:
+            # disk backend with meta_info
+            # Each line in the meta_info describes the relative path to an image
+            with open(self.opt['meta_info']) as fin:
+                paths = [line.strip() for line in fin]
+            self.paths = []
+            for path in paths:
+                gt_path, lq_path = path.split(', ')
+                gt_path = os.path.join(self.gt_folder, gt_path)
+                lq_path = os.path.join(self.lq_folder, lq_path)
+                self.paths.append(dict([('gt_path', gt_path), ('lq_path', lq_path)]))
+        else:
+            # disk backend
+            # it will scan the whole folder to get meta info
+            # it will be time-consuming for folders with too many files. It is recommended using an extra meta txt file
+            self.paths = paired_paths_from_folder([self.lq_folder, self.gt_folder], ['lq', 'gt'], self.filename_tmpl)
+
+    def __getitem__(self, index):
+        if self.file_client is None:
+            self.file_client = FileClient(self.io_backend_opt.pop('type'), **self.io_backend_opt)
+
+        scale = self.opt['scale']
+
+        # Load gt and lq images. Dimension order: HWC; channel order: BGR;
+        # image range: [0, 1], float32.
+        gt_path = self.paths[index]['gt_path']
+        img_bytes = self.file_client.get(gt_path, 'gt')
+        img_gt = imfrombytes(img_bytes, flag = self.flag, float32=True)
+        lq_path = self.paths[index]['lq_path']
+        img_bytes = self.file_client.get(lq_path, 'lq')
+        img_lq = imfrombytes(img_bytes, flag = self.flag, float32=True)
+
+        # augmentation for training
+        if self.opt['phase'] == 'train':
+            gt_size = self.opt['gt_size']
+            # random crop
+            img_gt, img_lq = paired_random_crop(img_gt, img_lq, gt_size, scale, gt_path)
+            # flip, rotation
+            img_gt, img_lq = augment([img_gt, img_lq], self.opt['use_hflip'], self.opt['use_rot'])
+
+        # BGR to RGB, HWC to CHW, numpy to tensor
+        img_gt, img_lq = img2tensor([img_gt, img_lq], bgr2rgb=True, float32=True)
+        # normalize
+        if self.mean is not None or self.std is not None:
+            normalize(img_lq, self.mean, self.std, inplace=True)
+            normalize(img_gt, self.mean, self.std, inplace=True)
+
+        return {'lq': img_lq, 'gt': img_gt, 'lq_path': lq_path, 'gt_path': gt_path}
+
+    def __len__(self):
+        return len(self.paths)
diff --git a/external/realesrgan/models/__init__.py b/external/realesrgan/models/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..0be7105dc75d150c49976396724085f678dc0675
--- /dev/null
+++ b/external/realesrgan/models/__init__.py
@@ -0,0 +1,10 @@
+import importlib
+from basicsr.utils import scandir
+from os import path as osp
+
+# automatically scan and import model modules for registry
+# scan all the files that end with '_model.py' under the model folder
+model_folder = osp.dirname(osp.abspath(__file__))
+model_filenames = [osp.splitext(osp.basename(v))[0] for v in scandir(model_folder) if v.endswith('_model.py')]
+# import all the model modules
+_model_modules = [importlib.import_module(f'realesrgan.models.{file_name}') for file_name in model_filenames]
diff --git a/external/realesrgan/models/realesrgan_model.py b/external/realesrgan/models/realesrgan_model.py
new file mode 100644
index 0000000000000000000000000000000000000000..c298a09c42433177f90001a0a31d029576072ccd
--- /dev/null
+++ b/external/realesrgan/models/realesrgan_model.py
@@ -0,0 +1,258 @@
+import numpy as np
+import random
+import torch
+from basicsr.data.degradations import random_add_gaussian_noise_pt, random_add_poisson_noise_pt
+from basicsr.data.transforms import paired_random_crop
+from basicsr.models.srgan_model import SRGANModel
+from basicsr.utils import DiffJPEG, USMSharp
+from basicsr.utils.img_process_util import filter2D
+from basicsr.utils.registry import MODEL_REGISTRY
+from collections import OrderedDict
+from torch.nn import functional as F
+
+
+@MODEL_REGISTRY.register()
+class RealESRGANModel(SRGANModel):
+    """RealESRGAN Model for Real-ESRGAN: Training Real-World Blind Super-Resolution with Pure Synthetic Data.
+
+    It mainly performs:
+    1. randomly synthesize LQ images in GPU tensors
+    2. optimize the networks with GAN training.
+    """
+
+    def __init__(self, opt):
+        super(RealESRGANModel, self).__init__(opt)
+        self.jpeger = DiffJPEG(differentiable=False).cuda()  # simulate JPEG compression artifacts
+        self.usm_sharpener = USMSharp().cuda()  # do usm sharpening
+        self.queue_size = opt.get('queue_size', 180)
+
+    @torch.no_grad()
+    def _dequeue_and_enqueue(self):
+        """It is the training pair pool for increasing the diversity in a batch.
+
+        Batch processing limits the diversity of synthetic degradations in a batch. For example, samples in a
+        batch could not have different resize scaling factors. Therefore, we employ this training pair pool
+        to increase the degradation diversity in a batch.
+        """
+        # initialize
+        b, c, h, w = self.lq.size()
+        if not hasattr(self, 'queue_lr'):
+            assert self.queue_size % b == 0, f'queue size {self.queue_size} should be divisible by batch size {b}'
+            self.queue_lr = torch.zeros(self.queue_size, c, h, w).cuda()
+            _, c, h, w = self.gt.size()
+            self.queue_gt = torch.zeros(self.queue_size, c, h, w).cuda()
+            self.queue_ptr = 0
+        if self.queue_ptr == self.queue_size:  # the pool is full
+            # do dequeue and enqueue
+            # shuffle
+            idx = torch.randperm(self.queue_size)
+            self.queue_lr = self.queue_lr[idx]
+            self.queue_gt = self.queue_gt[idx]
+            # get first b samples
+            lq_dequeue = self.queue_lr[0:b, :, :, :].clone()
+            gt_dequeue = self.queue_gt[0:b, :, :, :].clone()
+            # update the queue
+            self.queue_lr[0:b, :, :, :] = self.lq.clone()
+            self.queue_gt[0:b, :, :, :] = self.gt.clone()
+
+            self.lq = lq_dequeue
+            self.gt = gt_dequeue
+        else:
+            # only do enqueue
+            self.queue_lr[self.queue_ptr:self.queue_ptr + b, :, :, :] = self.lq.clone()
+            self.queue_gt[self.queue_ptr:self.queue_ptr + b, :, :, :] = self.gt.clone()
+            self.queue_ptr = self.queue_ptr + b
+
+    @torch.no_grad()
+    def feed_data(self, data):
+        """Accept data from dataloader, and then add two-order degradations to obtain LQ images.
+        """
+        if self.is_train and self.opt.get('high_order_degradation', True):
+            # training data synthesis
+            self.gt = data['gt'].to(self.device)
+            self.gt_usm = self.usm_sharpener(self.gt)
+
+            self.kernel1 = data['kernel1'].to(self.device)
+            self.kernel2 = data['kernel2'].to(self.device)
+            self.sinc_kernel = data['sinc_kernel'].to(self.device)
+
+            ori_h, ori_w = self.gt.size()[2:4]
+
+            # ----------------------- The first degradation process ----------------------- #
+            # blur
+            out = filter2D(self.gt_usm, self.kernel1)
+            # random resize
+            updown_type = random.choices(['up', 'down', 'keep'], self.opt['resize_prob'])[0]
+            if updown_type == 'up':
+                scale = np.random.uniform(1, self.opt['resize_range'][1])
+            elif updown_type == 'down':
+                scale = np.random.uniform(self.opt['resize_range'][0], 1)
+            else:
+                scale = 1
+            mode = random.choice(['area', 'bilinear', 'bicubic'])
+            out = F.interpolate(out, scale_factor=scale, mode=mode)
+            # add noise
+            gray_noise_prob = self.opt['gray_noise_prob']
+            if np.random.uniform() < self.opt['gaussian_noise_prob']:
+                out = random_add_gaussian_noise_pt(
+                    out, sigma_range=self.opt['noise_range'], clip=True, rounds=False, gray_prob=gray_noise_prob)
+            else:
+                out = random_add_poisson_noise_pt(
+                    out,
+                    scale_range=self.opt['poisson_scale_range'],
+                    gray_prob=gray_noise_prob,
+                    clip=True,
+                    rounds=False)
+            # JPEG compression
+            jpeg_p = out.new_zeros(out.size(0)).uniform_(*self.opt['jpeg_range'])
+            out = torch.clamp(out, 0, 1)  # clamp to [0, 1], otherwise JPEGer will result in unpleasant artifacts
+            out = self.jpeger(out, quality=jpeg_p)
+
+            # ----------------------- The second degradation process ----------------------- #
+            # blur
+            if np.random.uniform() < self.opt['second_blur_prob']:
+                out = filter2D(out, self.kernel2)
+            # random resize
+            updown_type = random.choices(['up', 'down', 'keep'], self.opt['resize_prob2'])[0]
+            if updown_type == 'up':
+                scale = np.random.uniform(1, self.opt['resize_range2'][1])
+            elif updown_type == 'down':
+                scale = np.random.uniform(self.opt['resize_range2'][0], 1)
+            else:
+                scale = 1
+            mode = random.choice(['area', 'bilinear', 'bicubic'])
+            out = F.interpolate(
+                out, size=(int(ori_h / self.opt['scale'] * scale), int(ori_w / self.opt['scale'] * scale)), mode=mode)
+            # add noise
+            gray_noise_prob = self.opt['gray_noise_prob2']
+            if np.random.uniform() < self.opt['gaussian_noise_prob2']:
+                out = random_add_gaussian_noise_pt(
+                    out, sigma_range=self.opt['noise_range2'], clip=True, rounds=False, gray_prob=gray_noise_prob)
+            else:
+                out = random_add_poisson_noise_pt(
+                    out,
+                    scale_range=self.opt['poisson_scale_range2'],
+                    gray_prob=gray_noise_prob,
+                    clip=True,
+                    rounds=False)
+
+            # JPEG compression + the final sinc filter
+            # We also need to resize images to desired sizes. We group [resize back + sinc filter] together
+            # as one operation.
+            # We consider two orders:
+            #   1. [resize back + sinc filter] + JPEG compression
+            #   2. JPEG compression + [resize back + sinc filter]
+            # Empirically, we find other combinations (sinc + JPEG + Resize) will introduce twisted lines.
+            if np.random.uniform() < 0.5:
+                # resize back + the final sinc filter
+                mode = random.choice(['area', 'bilinear', 'bicubic'])
+                out = F.interpolate(out, size=(ori_h // self.opt['scale'], ori_w // self.opt['scale']), mode=mode)
+                out = filter2D(out, self.sinc_kernel)
+                # JPEG compression
+                jpeg_p = out.new_zeros(out.size(0)).uniform_(*self.opt['jpeg_range2'])
+                out = torch.clamp(out, 0, 1)
+                out = self.jpeger(out, quality=jpeg_p)
+            else:
+                # JPEG compression
+                jpeg_p = out.new_zeros(out.size(0)).uniform_(*self.opt['jpeg_range2'])
+                out = torch.clamp(out, 0, 1)
+                out = self.jpeger(out, quality=jpeg_p)
+                # resize back + the final sinc filter
+                mode = random.choice(['area', 'bilinear', 'bicubic'])
+                out = F.interpolate(out, size=(ori_h // self.opt['scale'], ori_w // self.opt['scale']), mode=mode)
+                out = filter2D(out, self.sinc_kernel)
+
+            # clamp and round
+            self.lq = torch.clamp((out * 255.0).round(), 0, 255) / 255.
+
+            # random crop
+            gt_size = self.opt['gt_size']
+            (self.gt, self.gt_usm), self.lq = paired_random_crop([self.gt, self.gt_usm], self.lq, gt_size,
+                                                                 self.opt['scale'])
+
+            # training pair pool
+            self._dequeue_and_enqueue()
+            # sharpen self.gt again, as we have changed the self.gt with self._dequeue_and_enqueue
+            self.gt_usm = self.usm_sharpener(self.gt)
+            self.lq = self.lq.contiguous()  # for the warning: grad and param do not obey the gradient layout contract
+        else:
+            # for paired training or validation
+            self.lq = data['lq'].to(self.device)
+            if 'gt' in data:
+                self.gt = data['gt'].to(self.device)
+                self.gt_usm = self.usm_sharpener(self.gt)
+
+    def nondist_validation(self, dataloader, current_iter, tb_logger, save_img):
+        # do not use the synthetic process during validation
+        self.is_train = False
+        super(RealESRGANModel, self).nondist_validation(dataloader, current_iter, tb_logger, save_img)
+        self.is_train = True
+
+    def optimize_parameters(self, current_iter):
+        # usm sharpening
+        l1_gt = self.gt_usm
+        percep_gt = self.gt_usm
+        gan_gt = self.gt_usm
+        if self.opt['l1_gt_usm'] is False:
+            l1_gt = self.gt
+        if self.opt['percep_gt_usm'] is False:
+            percep_gt = self.gt
+        if self.opt['gan_gt_usm'] is False:
+            gan_gt = self.gt
+
+        # optimize net_g
+        for p in self.net_d.parameters():
+            p.requires_grad = False
+
+        self.optimizer_g.zero_grad()
+        self.output = self.net_g(self.lq)
+
+        l_g_total = 0
+        loss_dict = OrderedDict()
+        if (current_iter % self.net_d_iters == 0 and current_iter > self.net_d_init_iters):
+            # pixel loss
+            if self.cri_pix:
+                l_g_pix = self.cri_pix(self.output, l1_gt)
+                l_g_total += l_g_pix
+                loss_dict['l_g_pix'] = l_g_pix
+            # perceptual loss
+            if self.cri_perceptual:
+                l_g_percep, l_g_style = self.cri_perceptual(self.output, percep_gt)
+                if l_g_percep is not None:
+                    l_g_total += l_g_percep
+                    loss_dict['l_g_percep'] = l_g_percep
+                if l_g_style is not None:
+                    l_g_total += l_g_style
+                    loss_dict['l_g_style'] = l_g_style
+            # gan loss
+            fake_g_pred = self.net_d(self.output)
+            l_g_gan = self.cri_gan(fake_g_pred, True, is_disc=False)
+            l_g_total += l_g_gan
+            loss_dict['l_g_gan'] = l_g_gan
+
+            l_g_total.backward()
+            self.optimizer_g.step()
+
+        # optimize net_d
+        for p in self.net_d.parameters():
+            p.requires_grad = True
+
+        self.optimizer_d.zero_grad()
+        # real
+        real_d_pred = self.net_d(gan_gt)
+        l_d_real = self.cri_gan(real_d_pred, True, is_disc=True)
+        loss_dict['l_d_real'] = l_d_real
+        loss_dict['out_d_real'] = torch.mean(real_d_pred.detach())
+        l_d_real.backward()
+        # fake
+        fake_d_pred = self.net_d(self.output.detach().clone())  # clone for pt1.9
+        l_d_fake = self.cri_gan(fake_d_pred, False, is_disc=True)
+        loss_dict['l_d_fake'] = l_d_fake
+        loss_dict['out_d_fake'] = torch.mean(fake_d_pred.detach())
+        l_d_fake.backward()
+        self.optimizer_d.step()
+
+        if self.ema_decay > 0:
+            self.model_ema(decay=self.ema_decay)
+
+        self.log_dict = self.reduce_loss_dict(loss_dict)
diff --git a/external/realesrgan/models/realesrnet_model.py b/external/realesrgan/models/realesrnet_model.py
new file mode 100644
index 0000000000000000000000000000000000000000..d11668f3712bffcd062c57db14d22ca3a0e1e59d
--- /dev/null
+++ b/external/realesrgan/models/realesrnet_model.py
@@ -0,0 +1,188 @@
+import numpy as np
+import random
+import torch
+from basicsr.data.degradations import random_add_gaussian_noise_pt, random_add_poisson_noise_pt
+from basicsr.data.transforms import paired_random_crop
+from basicsr.models.sr_model import SRModel
+from basicsr.utils import DiffJPEG, USMSharp
+from basicsr.utils.img_process_util import filter2D
+from basicsr.utils.registry import MODEL_REGISTRY
+from torch.nn import functional as F
+
+
+@MODEL_REGISTRY.register()
+class RealESRNetModel(SRModel):
+    """RealESRNet Model for Real-ESRGAN: Training Real-World Blind Super-Resolution with Pure Synthetic Data.
+
+    It is trained without GAN losses.
+    It mainly performs:
+    1. randomly synthesize LQ images in GPU tensors
+    2. optimize the networks with GAN training.
+    """
+
+    def __init__(self, opt):
+        super(RealESRNetModel, self).__init__(opt)
+        self.jpeger = DiffJPEG(differentiable=False).cuda()  # simulate JPEG compression artifacts
+        self.usm_sharpener = USMSharp().cuda()  # do usm sharpening
+        self.queue_size = opt.get('queue_size', 180)
+
+    @torch.no_grad()
+    def _dequeue_and_enqueue(self):
+        """It is the training pair pool for increasing the diversity in a batch.
+
+        Batch processing limits the diversity of synthetic degradations in a batch. For example, samples in a
+        batch could not have different resize scaling factors. Therefore, we employ this training pair pool
+        to increase the degradation diversity in a batch.
+        """
+        # initialize
+        b, c, h, w = self.lq.size()
+        if not hasattr(self, 'queue_lr'):
+            assert self.queue_size % b == 0, f'queue size {self.queue_size} should be divisible by batch size {b}'
+            self.queue_lr = torch.zeros(self.queue_size, c, h, w).cuda()
+            _, c, h, w = self.gt.size()
+            self.queue_gt = torch.zeros(self.queue_size, c, h, w).cuda()
+            self.queue_ptr = 0
+        if self.queue_ptr == self.queue_size:  # the pool is full
+            # do dequeue and enqueue
+            # shuffle
+            idx = torch.randperm(self.queue_size)
+            self.queue_lr = self.queue_lr[idx]
+            self.queue_gt = self.queue_gt[idx]
+            # get first b samples
+            lq_dequeue = self.queue_lr[0:b, :, :, :].clone()
+            gt_dequeue = self.queue_gt[0:b, :, :, :].clone()
+            # update the queue
+            self.queue_lr[0:b, :, :, :] = self.lq.clone()
+            self.queue_gt[0:b, :, :, :] = self.gt.clone()
+
+            self.lq = lq_dequeue
+            self.gt = gt_dequeue
+        else:
+            # only do enqueue
+            self.queue_lr[self.queue_ptr:self.queue_ptr + b, :, :, :] = self.lq.clone()
+            self.queue_gt[self.queue_ptr:self.queue_ptr + b, :, :, :] = self.gt.clone()
+            self.queue_ptr = self.queue_ptr + b
+
+    @torch.no_grad()
+    def feed_data(self, data):
+        """Accept data from dataloader, and then add two-order degradations to obtain LQ images.
+        """
+        if self.is_train and self.opt.get('high_order_degradation', True):
+            # training data synthesis
+            self.gt = data['gt'].to(self.device)
+            # USM sharpen the GT images
+            if self.opt['gt_usm'] is True:
+                self.gt = self.usm_sharpener(self.gt)
+
+            self.kernel1 = data['kernel1'].to(self.device)
+            self.kernel2 = data['kernel2'].to(self.device)
+            self.sinc_kernel = data['sinc_kernel'].to(self.device)
+
+            ori_h, ori_w = self.gt.size()[2:4]
+
+            # ----------------------- The first degradation process ----------------------- #
+            # blur
+            out = filter2D(self.gt, self.kernel1)
+            # random resize
+            updown_type = random.choices(['up', 'down', 'keep'], self.opt['resize_prob'])[0]
+            if updown_type == 'up':
+                scale = np.random.uniform(1, self.opt['resize_range'][1])
+            elif updown_type == 'down':
+                scale = np.random.uniform(self.opt['resize_range'][0], 1)
+            else:
+                scale = 1
+            mode = random.choice(['area', 'bilinear', 'bicubic'])
+            out = F.interpolate(out, scale_factor=scale, mode=mode)
+            # add noise
+            gray_noise_prob = self.opt['gray_noise_prob']
+            if np.random.uniform() < self.opt['gaussian_noise_prob']:
+                out = random_add_gaussian_noise_pt(
+                    out, sigma_range=self.opt['noise_range'], clip=True, rounds=False, gray_prob=gray_noise_prob)
+            else:
+                out = random_add_poisson_noise_pt(
+                    out,
+                    scale_range=self.opt['poisson_scale_range'],
+                    gray_prob=gray_noise_prob,
+                    clip=True,
+                    rounds=False)
+            # JPEG compression
+            jpeg_p = out.new_zeros(out.size(0)).uniform_(*self.opt['jpeg_range'])
+            out = torch.clamp(out, 0, 1)  # clamp to [0, 1], otherwise JPEGer will result in unpleasant artifacts
+            out = self.jpeger(out, quality=jpeg_p)
+
+            # ----------------------- The second degradation process ----------------------- #
+            # blur
+            if np.random.uniform() < self.opt['second_blur_prob']:
+                out = filter2D(out, self.kernel2)
+            # random resize
+            updown_type = random.choices(['up', 'down', 'keep'], self.opt['resize_prob2'])[0]
+            if updown_type == 'up':
+                scale = np.random.uniform(1, self.opt['resize_range2'][1])
+            elif updown_type == 'down':
+                scale = np.random.uniform(self.opt['resize_range2'][0], 1)
+            else:
+                scale = 1
+            mode = random.choice(['area', 'bilinear', 'bicubic'])
+            out = F.interpolate(
+                out, size=(int(ori_h / self.opt['scale'] * scale), int(ori_w / self.opt['scale'] * scale)), mode=mode)
+            # add noise
+            gray_noise_prob = self.opt['gray_noise_prob2']
+            if np.random.uniform() < self.opt['gaussian_noise_prob2']:
+                out = random_add_gaussian_noise_pt(
+                    out, sigma_range=self.opt['noise_range2'], clip=True, rounds=False, gray_prob=gray_noise_prob)
+            else:
+                out = random_add_poisson_noise_pt(
+                    out,
+                    scale_range=self.opt['poisson_scale_range2'],
+                    gray_prob=gray_noise_prob,
+                    clip=True,
+                    rounds=False)
+
+            # JPEG compression + the final sinc filter
+            # We also need to resize images to desired sizes. We group [resize back + sinc filter] together
+            # as one operation.
+            # We consider two orders:
+            #   1. [resize back + sinc filter] + JPEG compression
+            #   2. JPEG compression + [resize back + sinc filter]
+            # Empirically, we find other combinations (sinc + JPEG + Resize) will introduce twisted lines.
+            if np.random.uniform() < 0.5:
+                # resize back + the final sinc filter
+                mode = random.choice(['area', 'bilinear', 'bicubic'])
+                out = F.interpolate(out, size=(ori_h // self.opt['scale'], ori_w // self.opt['scale']), mode=mode)
+                out = filter2D(out, self.sinc_kernel)
+                # JPEG compression
+                jpeg_p = out.new_zeros(out.size(0)).uniform_(*self.opt['jpeg_range2'])
+                out = torch.clamp(out, 0, 1)
+                out = self.jpeger(out, quality=jpeg_p)
+            else:
+                # JPEG compression
+                jpeg_p = out.new_zeros(out.size(0)).uniform_(*self.opt['jpeg_range2'])
+                out = torch.clamp(out, 0, 1)
+                out = self.jpeger(out, quality=jpeg_p)
+                # resize back + the final sinc filter
+                mode = random.choice(['area', 'bilinear', 'bicubic'])
+                out = F.interpolate(out, size=(ori_h // self.opt['scale'], ori_w // self.opt['scale']), mode=mode)
+                out = filter2D(out, self.sinc_kernel)
+
+            # clamp and round
+            self.lq = torch.clamp((out * 255.0).round(), 0, 255) / 255.
+
+            # random crop
+            gt_size = self.opt['gt_size']
+            self.gt, self.lq = paired_random_crop(self.gt, self.lq, gt_size, self.opt['scale'])
+
+            # training pair pool
+            self._dequeue_and_enqueue()
+            self.lq = self.lq.contiguous()  # for the warning: grad and param do not obey the gradient layout contract
+        else:
+            # for paired training or validation
+            self.lq = data['lq'].to(self.device)
+            if 'gt' in data:
+                self.gt = data['gt'].to(self.device)
+                self.gt_usm = self.usm_sharpener(self.gt)
+
+    def nondist_validation(self, dataloader, current_iter, tb_logger, save_img):
+        # do not use the synthetic process during validation
+        self.is_train = False
+        super(RealESRNetModel, self).nondist_validation(dataloader, current_iter, tb_logger, save_img)
+        self.is_train = True
diff --git a/external/realesrgan/train.py b/external/realesrgan/train.py
new file mode 100644
index 0000000000000000000000000000000000000000..8a9cec9ed80d9f362984779548dcec921a636a04
--- /dev/null
+++ b/external/realesrgan/train.py
@@ -0,0 +1,11 @@
+# flake8: noqa
+import os.path as osp
+from basicsr.train import train_pipeline
+
+import realesrgan.archs
+import realesrgan.data
+import realesrgan.models
+
+if __name__ == '__main__':
+    root_path = osp.abspath(osp.join(__file__, osp.pardir, osp.pardir))
+    train_pipeline(root_path)
diff --git a/external/realesrgan/utils.py b/external/realesrgan/utils.py
new file mode 100644
index 0000000000000000000000000000000000000000..f0c4688cba5f1db83441feee425943d76d00f1cd
--- /dev/null
+++ b/external/realesrgan/utils.py
@@ -0,0 +1,302 @@
+import cv2
+import math
+import numpy as np
+import os
+import queue
+import threading
+import torch
+from basicsr.utils.download_util import load_file_from_url
+from torch.nn import functional as F
+
+ROOT_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+
+
+class RealESRGANer():
+    """A helper class for upsampling images with RealESRGAN.
+
+    Args:
+        scale (int): Upsampling scale factor used in the networks. It is usually 2 or 4.
+        model_path (str): The path to the pretrained model. It can be urls (will first download it automatically).
+        model (nn.Module): The defined network. Default: None.
+        tile (int): As too large images result in the out of GPU memory issue, so this tile option will first crop
+            input images into tiles, and then process each of them. Finally, they will be merged into one image.
+            0 denotes for do not use tile. Default: 0.
+        tile_pad (int): The pad size for each tile, to remove border artifacts. Default: 10.
+        pre_pad (int): Pad the input images to avoid border artifacts. Default: 10.
+        half (float): Whether to use half precision during inference. Default: False.
+    """
+
+    def __init__(self, scale, model_path, dni_weight = None, model = None, tile = 0, tile_pad = 10, pre_pad = 10, half = False, device = None, gpu_id = None):
+        self.scale = scale
+        self.tile_size = tile
+        self.tile_pad = tile_pad
+        self.pre_pad = pre_pad
+        self.mod_scale = None
+        self.half = half
+
+        # initialize model
+        if gpu_id:
+            self.device = torch.device(f'cuda:{gpu_id}' if torch.cuda.is_available() else 'cpu') if device is None else device
+        else:
+            self.device = torch.device('cuda' if torch.cuda.is_available() else 'cpu') if device is None else device
+
+        if isinstance(model_path, list):
+            # dni
+            assert len(model_path) == len(dni_weight), 'model_path and dni_weight should have the save length.'
+            loadnet = self.dni(model_path[0], model_path[1], dni_weight)
+        else:
+            # if the model_path starts with https, it will first download models to the folder: weights
+            if model_path.startswith('https://'):
+                model_path = load_file_from_url(url = model_path, model_dir = os.path.join(ROOT_DIR, 'weights'), progress = True, file_name = None)
+            loadnet = torch.load(model_path, map_location = torch.device('cpu'))
+
+        # prefer to use params_ema
+        if 'params_ema' in loadnet:
+            keyname = 'params_ema'
+        else:
+            keyname = 'params'
+        model.load_state_dict(loadnet[keyname], strict=True)
+
+        model.eval()
+        self.model = model.to(self.device)
+        if self.half:
+            self.model = self.model.half()
+
+    def dni(self, net_a, net_b, dni_weight, key='params', loc='cpu'):
+        """Deep network interpolation.
+
+        ``Paper: Deep Network Interpolation for Continuous Imagery Effect Transition``
+        """
+        net_a = torch.load(net_a, map_location = torch.device(loc))
+        net_b = torch.load(net_b, map_location = torch.device(loc))
+        for k, v_a in net_a[key].items():
+            net_a[key][k] = dni_weight[0] * v_a + dni_weight[1] * net_b[key][k]
+        return net_a
+
+    def pre_process(self, img):
+        """Pre-process, such as pre-pad and mod pad, so that the images can be divisible
+        """
+        img = torch.from_numpy(np.transpose(img, (2, 0, 1))).float()
+        self.img = img.unsqueeze(0).to(self.device)
+        if self.half:
+            self.img = self.img.half()
+
+        # pre_pad
+        if self.pre_pad != 0:
+            self.img = F.pad(self.img, (0, self.pre_pad, 0, self.pre_pad), 'reflect')
+        # mod pad for divisible borders
+        if self.scale == 2:
+            self.mod_scale = 2
+        elif self.scale == 1:
+            self.mod_scale = 4
+        if self.mod_scale is not None:
+            self.mod_pad_h, self.mod_pad_w = 0, 0
+            _, _, h, w = self.img.size()
+            if (h % self.mod_scale != 0):
+                self.mod_pad_h = (self.mod_scale - h % self.mod_scale)
+            if (w % self.mod_scale != 0):
+                self.mod_pad_w = (self.mod_scale - w % self.mod_scale)
+            self.img = F.pad(self.img, (0, self.mod_pad_w, 0, self.mod_pad_h), 'reflect')
+
+    def process(self):
+        # model inference
+        self.output = self.model(self.img)
+
+    def tile_process(self):
+        """It will first crop input images to tiles, and then process each tile.
+        Finally, all the processed tiles are merged into one images.
+
+        Modified from: https://github.com/ata4/esrgan-launcher
+        """
+        batch, channel, height, width = self.img.shape
+        output_height = height * self.scale
+        output_width = width * self.scale
+        output_shape = (batch, channel, output_height, output_width)
+
+        # start with black image
+        self.output = self.img.new_zeros(output_shape)
+        tiles_x = math.ceil(width / self.tile_size)
+        tiles_y = math.ceil(height / self.tile_size)
+
+        # loop over all tiles
+        for y in range(tiles_y):
+            for x in range(tiles_x):
+                # extract tile from input image
+                ofs_x = x * self.tile_size
+                ofs_y = y * self.tile_size
+                # input tile area on total image
+                input_start_x = ofs_x
+                input_end_x = min(ofs_x + self.tile_size, width)
+                input_start_y = ofs_y
+                input_end_y = min(ofs_y + self.tile_size, height)
+
+                # input tile area on total image with padding
+                input_start_x_pad = max(input_start_x - self.tile_pad, 0)
+                input_end_x_pad = min(input_end_x + self.tile_pad, width)
+                input_start_y_pad = max(input_start_y - self.tile_pad, 0)
+                input_end_y_pad = min(input_end_y + self.tile_pad, height)
+
+                # input tile dimensions
+                input_tile_width = input_end_x - input_start_x
+                input_tile_height = input_end_y - input_start_y
+                tile_idx = y * tiles_x + x + 1
+                input_tile = self.img[:, :, input_start_y_pad:input_end_y_pad, input_start_x_pad:input_end_x_pad]
+
+                # upscale tile
+                try:
+                    with torch.no_grad():
+                        output_tile = self.model(input_tile)
+                except RuntimeError as error:
+                    print('Error', error)
+                print(f'\tTile {tile_idx}/{tiles_x * tiles_y}')
+
+                # output tile area on total image
+                output_start_x = input_start_x * self.scale
+                output_end_x = input_end_x * self.scale
+                output_start_y = input_start_y * self.scale
+                output_end_y = input_end_y * self.scale
+
+                # output tile area without padding
+                output_start_x_tile = (input_start_x - input_start_x_pad) * self.scale
+                output_end_x_tile = output_start_x_tile + input_tile_width * self.scale
+                output_start_y_tile = (input_start_y - input_start_y_pad) * self.scale
+                output_end_y_tile = output_start_y_tile + input_tile_height * self.scale
+
+                # put tile into output image
+                self.output[:, :, output_start_y:output_end_y, output_start_x:output_end_x] = output_tile[:, :, output_start_y_tile:output_end_y_tile, output_start_x_tile:output_end_x_tile]
+
+    def post_process(self):
+        # remove extra pad
+        if self.mod_scale is not None:
+            _, _, h, w = self.output.size()
+            self.output = self.output[:, :, 0:h - self.mod_pad_h * self.scale, 0:w - self.mod_pad_w * self.scale]
+        # remove prepad
+        if self.pre_pad != 0:
+            _, _, h, w = self.output.size()
+            self.output = self.output[:, :, 0:h - self.pre_pad * self.scale, 0:w - self.pre_pad * self.scale]
+        return self.output
+
+    @torch.no_grad()
+    def enhance(self, img, outscale = None, num_out_ch = 3, alpha_upsampler = 'realesrgan'):
+        h_input, w_input = img.shape[0:2]
+        # img: numpy
+        img = img.astype(np.float32)
+        if np.max(img) > 256:  # 16-bit image
+            max_range = 65535
+            print('\tInput is a 16-bit image')
+        else:
+            max_range = 255
+        img = img / max_range
+        if len(img.shape) == 2:  # gray image
+            img_mode = 'L'
+            img = cv2.cvtColor(img, cv2.COLOR_GRAY2RGB)
+        elif img.shape[2] == 4:  # RGBA image with alpha channel
+            img_mode = 'RGBA'
+            if num_out_ch != 3:
+                img = cv2.cvtColor(img, cv2.COLOR_BGRA2RGBA)
+            else:
+                alpha = img[:, :, 3]
+                img = img[:, :, 0:3]
+                img = cv2.cvtColor(img, cv2.COLOR_BGR2RGB)
+                if alpha_upsampler == 'realesrgan':
+                    alpha = cv2.cvtColor(alpha, cv2.COLOR_GRAY2RGB)
+        else:
+            img_mode = 'RGB'
+            img = cv2.cvtColor(img, cv2.COLOR_BGR2RGB)
+
+        # ------------------- process image (without the alpha channel) ------------------- #
+        self.pre_process(img)
+        if self.tile_size > 0:
+            self.tile_process()
+        else:
+            self.process()
+        output_img = self.post_process()
+        output_img = output_img.data.squeeze().float().cpu().clamp_(0, 1).numpy()
+        img_struct_list = []
+        for i in range(3, num_out_ch):
+            img_struct_list.append(i)
+        output_img = output_img[[2, 1, 0] + img_struct_list, :, :]
+        output_img = np.transpose(output_img, (1, 2, 0))
+        if img_mode == 'L':
+            output_img = cv2.cvtColor(output_img, cv2.COLOR_BGR2GRAY)
+
+        # ------------------- process the alpha channel if necessary ------------------- #
+        if img_mode == 'RGBA' and num_out_ch == 3:
+            if alpha_upsampler == 'realesrgan':
+                self.pre_process(alpha)
+                if self.tile_size > 0:
+                    self.tile_process()
+                else:
+                    self.process()
+                output_alpha = self.post_process()
+                output_alpha = output_alpha.data.squeeze().float().cpu().clamp_(0, 1).numpy()
+                output_alpha = np.transpose(output_alpha[[2, 1, 0], :, :], (1, 2, 0))
+                output_alpha = cv2.cvtColor(output_alpha, cv2.COLOR_BGR2GRAY)
+            else:  # use the cv2 resize for alpha channel
+                h, w = alpha.shape[0:2]
+                output_alpha = cv2.resize(alpha, (w * self.scale, h * self.scale), interpolation=cv2.INTER_LINEAR)
+
+            # merge the alpha channel
+            output_img = cv2.cvtColor(output_img, cv2.COLOR_BGR2BGRA)
+            output_img[:, :, 3] = output_alpha
+
+        # ------------------------------ return ------------------------------ #
+        if max_range == 65535:  # 16-bit image
+            output = (output_img * 65535.0).round().astype(np.uint16)
+        else:
+            output = (output_img * 255.0).round().astype(np.uint8)
+
+        if outscale is not None and outscale != float(self.scale):
+            output = cv2.resize(output, (int(w_input * outscale), int(h_input * outscale)), interpolation = cv2.INTER_LANCZOS4)
+
+        return output, img_mode
+
+
+class PrefetchReader(threading.Thread):
+    """Prefetch images.
+
+    Args:
+        img_list (list[str]): A image list of image paths to be read.
+        num_prefetch_queue (int): Number of prefetch queue.
+    """
+
+    def __init__(self, img_list, num_prefetch_queue):
+        super().__init__()
+        self.que = queue.Queue(num_prefetch_queue)
+        self.img_list = img_list
+
+    def run(self):
+        for img_path in self.img_list:
+            img = cv2.imread(img_path, cv2.IMREAD_UNCHANGED)
+            self.que.put(img)
+
+        self.que.put(None)
+
+    def __next__(self):
+        next_item = self.que.get()
+        if next_item is None:
+            raise StopIteration
+        return next_item
+
+    def __iter__(self):
+        return self
+
+
+class IOConsumer(threading.Thread):
+
+    def __init__(self, opt, que, qid):
+        super().__init__()
+        self._queue = que
+        self.qid = qid
+        self.opt = opt
+
+    def run(self):
+        while True:
+            msg = self._queue.get()
+            if isinstance(msg, str) and msg == 'quit':
+                break
+
+            output = msg['output']
+            save_path = msg['save_path']
+            cv2.imwrite(save_path, output)
+        print(f'IO worker {self.qid} is done.')
\ No newline at end of file
diff --git a/handler.py b/handler.py
index c84abb898fc5dbd14f7726ba43c6cc9fc965bd29..9dc69e66add1792d3cb2b759de61a6afa5c18eea 100644
--- a/handler.py
+++ b/handler.py
@@ -1,5 +1,10 @@
-import json
 import os
+import sys
+
+path = os.path.dirname(os.path.abspath(__file__))
+sys.path.insert(1, os.path.join(path, "external"))
+
+
 from pathlib import Path
 from typing import Any, Dict, List
 
diff --git a/inference.py b/inference.py
index aa63ffc23aa54a45d7974baf160a8b2dc25bf462..c52b117820b73d69450ca082edcaf9e00679407a 100644
--- a/inference.py
+++ b/inference.py
@@ -17,10 +17,9 @@ from internals.pipelines.img_classifier import ImageClassifier
 from internals.pipelines.img_to_text import Image2Text
 from internals.pipelines.inpainter import InPainter
 from internals.pipelines.object_remove import ObjectRemoval
-from internals.pipelines.pose_detector import PoseDetector
 from internals.pipelines.prompt_modifier import PromptModifier
 from internals.pipelines.realtime_draw import RealtimeDraw
-from internals.pipelines.remove_background import RemoveBackgroundV2
+from internals.pipelines.remove_background import RemoveBackgroundV3
 from internals.pipelines.replace_background import ReplaceBackground
 from internals.pipelines.safety_checker import SafetyChecker
 from internals.pipelines.sdxl_tile_upscale import SDXLTileUpscaler
@@ -45,7 +44,6 @@ from internals.util.config import (
     set_model_config,
     set_root_dir,
 )
-from internals.util.failure_hander import FailureHandler
 from internals.util.lora_style import LoraStyle
 from internals.util.model_loader import load_model_from_config
 from internals.util.slack import Slack
@@ -57,14 +55,13 @@ auto_mode = False
 
 prompt_modifier = PromptModifier(num_of_sequences=get_num_return_sequences())
 upscaler = Upscaler()
-pose_detector = PoseDetector()
 inpainter = InPainter()
 high_res = HighRes()
 img2text = Image2Text()
 img_classifier = ImageClassifier()
 object_removal = ObjectRemoval()
 replace_background = ReplaceBackground()
-remove_background_v2 = RemoveBackgroundV2()
+remove_background_v3 = RemoveBackgroundV3()
 replace_background = ReplaceBackground()
 controlnet = ControlNet()
 lora_style = LoraStyle()
@@ -92,7 +89,7 @@ def get_patched_prompt_text2img(task: Task):
 
 def get_patched_prompt_tile_upscale(task: Task):
     return prompt_util.get_patched_prompt_tile_upscale(
-        task, avatar, lora_style, img_classifier, img2text
+        task, avatar, lora_style, img_classifier, img2text, is_sdxl=get_is_sdxl()
     )
 
 
@@ -126,20 +123,19 @@ def canny(task: Task):
         "num_inference_steps": task.get_steps(),
         "width": width,
         "height": height,
-        "negative_prompt": [
-            f"monochrome, neon, x-ray, negative image, oversaturated, {task.get_negative_prompt()}"
-        ]
-        * get_num_return_sequences(),
+        "negative_prompt": [task.get_negative_prompt()] * get_num_return_sequences(),
+        "apply_preprocess": task.get_apply_preprocess(),
         **task.cnc_kwargs(),
         **lora_patcher.kwargs(),
     }
-    images, has_nsfw = controlnet.process(**kwargs)
+    (images, has_nsfw), control_image = controlnet.process(**kwargs)
     if task.get_high_res_fix():
         kwargs = {
             "prompt": prompt,
             "negative_prompt": [task.get_negative_prompt()]
             * get_num_return_sequences(),
             "images": images,
+            "seed": task.get_seed(),
             "width": task.get_width(),
             "height": task.get_height(),
             "num_inference_steps": task.get_steps(),
@@ -147,6 +143,9 @@ def canny(task: Task):
         }
         images, _ = high_res.apply(**kwargs)
 
+    upload_image(
+        control_image, f"crecoAI/{task.get_taskId()}_condition.png"  # pyright: ignore
+    )
     generated_image_urls = upload_images(images, "_canny", task.get_taskId())
 
     lora_patcher.cleanup()
@@ -162,48 +161,102 @@ def canny(task: Task):
 @update_db
 @auto_clear_cuda_and_gc(controlnet)
 @slack.auto_send_alert
-def tile_upscale(task: Task):
-    output_key = "crecoAI/{}_tile_upscaler.png".format(task.get_taskId())
-
-    prompt = get_patched_prompt_tile_upscale(task)
-
-    if get_is_sdxl():
-        lora_patcher = lora_style.get_patcher(
-            [sdxl_tileupscaler.pipe, high_res.pipe], task.get_style()
-        )
-        lora_patcher.patch()
+def canny_img2img(task: Task):
+    prompt, _ = get_patched_prompt(task)
 
-        images, has_nsfw = sdxl_tileupscaler.process(
-            prompt=prompt,
-            imageUrl=task.get_imageUrl(),
-            resize_dimension=task.get_resize_dimension(),
-            negative_prompt=task.get_negative_prompt(),
-            width=task.get_width(),
-            height=task.get_height(),
-            model_id=task.get_model_id(),
-        )
+    width, height = get_intermediate_dimension(task)
 
-        lora_patcher.cleanup()
-    else:
-        controlnet.load_model("tile_upscaler")
+    controlnet.load_model("canny_2x")
 
-        lora_patcher = lora_style.get_patcher(controlnet.pipe, task.get_style())
-        lora_patcher.patch()
+    lora_patcher = lora_style.get_patcher(
+        [controlnet.pipe, high_res.pipe], task.get_style()
+    )
+    lora_patcher.patch()
 
+    kwargs = {
+        "prompt": prompt,
+        "imageUrl": task.get_imageUrl(),
+        "seed": task.get_seed(),
+        "num_inference_steps": task.get_steps(),
+        "width": width,
+        "height": height,
+        "negative_prompt": [task.get_negative_prompt()] * get_num_return_sequences(),
+        **task.cnci2i_kwargs(),
+        **lora_patcher.kwargs(),
+    }
+    (images, has_nsfw), control_image = controlnet.process(**kwargs)
+    if task.get_high_res_fix():
+        # we run both here normal upscaler and highres
+        # and show normal upscaler image as output
+        # but use highres image for tile upscale
         kwargs = {
-            "imageUrl": task.get_imageUrl(),
+            "prompt": prompt,
+            "negative_prompt": [task.get_negative_prompt()]
+            * get_num_return_sequences(),
+            "images": images,
             "seed": task.get_seed(),
-            "num_inference_steps": task.get_steps(),
-            "negative_prompt": task.get_negative_prompt(),
             "width": task.get_width(),
             "height": task.get_height(),
-            "prompt": prompt,
-            "resize_dimension": task.get_resize_dimension(),
-            **task.cnt_kwargs(),
+            "num_inference_steps": task.get_steps(),
+            **task.high_res_kwargs(),
         }
-        images, has_nsfw = controlnet.process(**kwargs)
-        lora_patcher.cleanup()
-        controlnet.cleanup()
+        images, _ = high_res.apply(**kwargs)
+
+        # upload_images(images_high_res, "_canny_2x_highres", task.get_taskId())
+
+        for i, image in enumerate(images):
+            img = upscaler.upscale(
+                image=image,
+                width=task.get_width(),
+                height=task.get_height(),
+                face_enhance=task.get_face_enhance(),
+                resize_dimension=None,
+            )
+            img = Upscaler.to_pil(img)
+            images[i] = img.resize((task.get_width(), task.get_height()))
+
+    upload_image(
+        control_image, f"crecoAI/{task.get_taskId()}_condition.png"  # pyright: ignore
+    )
+    generated_image_urls = upload_images(images, "_canny_2x", task.get_taskId())
+
+    lora_patcher.cleanup()
+    controlnet.cleanup()
+
+    return {
+        "modified_prompts": prompt,
+        "generated_image_urls": generated_image_urls,
+        "has_nsfw": has_nsfw,
+    }
+
+
+@update_db
+@auto_clear_cuda_and_gc(controlnet)
+@slack.auto_send_alert
+def tile_upscale(task: Task):
+    output_key = "crecoAI/{}_tile_upscaler.png".format(task.get_taskId())
+
+    prompt = get_patched_prompt_tile_upscale(task)
+
+    controlnet.load_model("tile_upscaler")
+
+    lora_patcher = lora_style.get_patcher(controlnet.pipe, task.get_style())
+    lora_patcher.patch()
+
+    kwargs = {
+        "imageUrl": task.get_imageUrl(),
+        "seed": task.get_seed(),
+        "num_inference_steps": task.get_steps(),
+        "negative_prompt": task.get_negative_prompt(),
+        "width": task.get_width(),
+        "height": task.get_height(),
+        "prompt": prompt,
+        "resize_dimension": task.get_resize_dimension(),
+        **task.cnt_kwargs(),
+    }
+    (images, has_nsfw), _ = controlnet.process(**kwargs)
+    lora_patcher.cleanup()
+    controlnet.cleanup()
 
     generated_image_url = upload_image(images[0], output_key)
 
@@ -229,12 +282,7 @@ def scribble(task: Task):
     )
     lora_patcher.patch()
 
-    image = download_image(task.get_imageUrl()).resize((width, height))
-    if get_is_sdxl():
-        # We use sketch in SDXL
-        image = ControlNet.pidinet_image(image)
-    else:
-        image = ControlNet.scribble_image(image)
+    image = controlnet.preprocess_image(task.get_imageUrl(), width, height)
 
     kwargs = {
         "image": [image] * get_num_return_sequences(),
@@ -244,9 +292,10 @@ def scribble(task: Task):
         "height": height,
         "prompt": prompt,
         "negative_prompt": [task.get_negative_prompt()] * get_num_return_sequences(),
+        "apply_preprocess": task.get_apply_preprocess(),
         **task.cns_kwargs(),
     }
-    images, has_nsfw = controlnet.process(**kwargs)
+    (images, has_nsfw), condition_image = controlnet.process(**kwargs)
 
     if task.get_high_res_fix():
         kwargs = {
@@ -256,11 +305,15 @@ def scribble(task: Task):
             "images": images,
             "width": task.get_width(),
             "height": task.get_height(),
+            "seed": task.get_seed(),
             "num_inference_steps": task.get_steps(),
             **task.high_res_kwargs(),
         }
         images, _ = high_res.apply(**kwargs)
 
+    upload_image(
+        condition_image, f"crecoAI/{task.get_taskId()}_condition.png"  # pyright: ignore
+    )
     generated_image_urls = upload_images(images, "_scribble", task.get_taskId())
 
     lora_patcher.cleanup()
@@ -296,16 +349,21 @@ def linearart(task: Task):
         "height": height,
         "prompt": prompt,
         "negative_prompt": [task.get_negative_prompt()] * get_num_return_sequences(),
+        "apply_preprocess": task.get_apply_preprocess(),
         **task.cnl_kwargs(),
     }
-    images, has_nsfw = controlnet.process(**kwargs)
+    (images, has_nsfw), condition_image = controlnet.process(**kwargs)
 
     if task.get_high_res_fix():
+        # we run both here normal upscaler and highres
+        # and show normal upscaler image as output
+        # but use highres image for tile upscale
         kwargs = {
             "prompt": prompt,
             "negative_prompt": [task.get_negative_prompt()]
             * get_num_return_sequences(),
             "images": images,
+            "seed": task.get_seed(),
             "width": task.get_width(),
             "height": task.get_height(),
             "num_inference_steps": task.get_steps(),
@@ -313,6 +371,22 @@ def linearart(task: Task):
         }
         images, _ = high_res.apply(**kwargs)
 
+        # upload_images(images_high_res, "_linearart_highres", task.get_taskId())
+        #
+        # for i, image in enumerate(images):
+        #     img = upscaler.upscale(
+        #         image=image,
+        #         width=task.get_width(),
+        #         height=task.get_height(),
+        #         face_enhance=task.get_face_enhance(),
+        #         resize_dimension=None,
+        #     )
+        #     img = Upscaler.to_pil(img)
+        #     images[i] = img
+
+    upload_image(
+        condition_image, f"crecoAI/{task.get_taskId()}_condition.png"  # pyright: ignore
+    )
     generated_image_urls = upload_images(images, "_linearart", task.get_taskId())
 
     lora_patcher.cleanup()
@@ -341,20 +415,14 @@ def pose(task: Task, s3_outkey: str = "_pose", poses: Optional[list] = None):
     )
     lora_patcher.patch()
 
-    if not task.get_pose_estimation():
+    if not task.get_apply_preprocess():
+        poses = [download_image(task.get_imageUrl()).resize((width, height))]
+    elif not task.get_pose_estimation():
         print("Not detecting pose")
         pose = download_image(task.get_imageUrl()).resize(
             (task.get_width(), task.get_height())
         )
         poses = [pose] * get_num_return_sequences()
-    elif task.get_pose_coordinates():
-        infered_pose = pose_detector.transform(
-            image=task.get_imageUrl(),
-            client_coordinates=task.get_pose_coordinates(),
-            width=task.get_width(),
-            height=task.get_height(),
-        )
-        poses = [infered_pose] * get_num_return_sequences()
     else:
         poses = [
             controlnet.detect_pose(task.get_imageUrl())
@@ -370,8 +438,11 @@ def pose(task: Task, s3_outkey: str = "_pose", poses: Optional[list] = None):
 
         upload_image(depth, "crecoAI/{}_depth.png".format(task.get_taskId()))
 
+        scale = task.cnp_kwargs().pop("controlnet_conditioning_scale", None)
+        factor = task.cnp_kwargs().pop("control_guidance_end", None)
         kwargs = {
-            "control_guidance_end": [0.5, 1.0],
+            "controlnet_conditioning_scale": [1.0, scale or 1.0],
+            "control_guidance_end": [0.5, factor or 1.0],
         }
     else:
         images = poses[0]
@@ -389,7 +460,7 @@ def pose(task: Task, s3_outkey: str = "_pose", poses: Optional[list] = None):
         **task.cnp_kwargs(),
         **lora_patcher.kwargs(),
     }
-    images, has_nsfw = controlnet.process(**kwargs)
+    (images, has_nsfw), _ = controlnet.process(**kwargs)
 
     if task.get_high_res_fix():
         kwargs = {
@@ -400,11 +471,12 @@ def pose(task: Task, s3_outkey: str = "_pose", poses: Optional[list] = None):
             "width": task.get_width(),
             "height": task.get_height(),
             "num_inference_steps": task.get_steps(),
+            "seed": task.get_seed(),
             **task.high_res_kwargs(),
         }
         images, _ = high_res.apply(**kwargs)
 
-    upload_image(poses[0], "crecoAI/{}_pose.png".format(task.get_taskId()))
+    upload_image(poses[0], "crecoAI/{}_condition.png".format(task.get_taskId()))
 
     generated_image_urls = upload_images(images, s3_outkey, task.get_taskId())
 
@@ -431,12 +503,11 @@ def text2img(task: Task):
     )
     lora_patcher.patch()
 
-    torch.manual_seed(task.get_seed())
-
     kwargs = {
         "params": params,
         "num_inference_steps": task.get_steps(),
         "height": height,
+        "seed": task.get_seed(),
         "width": width,
         "negative_prompt": task.get_negative_prompt(),
         **task.t2i_kwargs(),
@@ -455,6 +526,7 @@ def text2img(task: Task):
             "width": task.get_width(),
             "height": task.get_height(),
             "num_inference_steps": task.get_steps(),
+            "seed": task.get_seed(),
             **task.high_res_kwargs(),
         }
         images, _ = high_res.apply(**kwargs)
@@ -478,11 +550,9 @@ def img2img(task: Task):
 
     width, height = get_intermediate_dimension(task)
 
-    torch.manual_seed(task.get_seed())
-
     if get_is_sdxl():
         # we run lineart for img2img
-        controlnet.load_model("linearart")
+        controlnet.load_model("canny")
 
         lora_patcher = lora_style.get_patcher(
             [controlnet.pipe2, high_res.pipe], task.get_style()
@@ -498,10 +568,11 @@ def img2img(task: Task):
             "prompt": prompt,
             "negative_prompt": [task.get_negative_prompt()]
             * get_num_return_sequences(),
-            **task.cnl_kwargs(),
-            "adapter_conditioning_scale": 0.3,
+            "controlnet_conditioning_scale": 0.5,
+            # "adapter_conditioning_scale": 0.3,
+            **task.i2i_kwargs(),
         }
-        images, has_nsfw = controlnet.process(**kwargs)
+        (images, has_nsfw), _ = controlnet.process(**kwargs)
     else:
         lora_patcher = lora_style.get_patcher(
             [img2img_pipe.pipe, high_res.pipe], task.get_style()
@@ -516,6 +587,7 @@ def img2img(task: Task):
             "num_inference_steps": task.get_steps(),
             "width": width,
             "height": height,
+            "seed": task.get_seed(),
             **task.i2i_kwargs(),
             **lora_patcher.kwargs(),
         }
@@ -530,6 +602,7 @@ def img2img(task: Task):
             "width": task.get_width(),
             "height": task.get_height(),
             "num_inference_steps": task.get_steps(),
+            "seed": task.get_seed(),
             **task.high_res_kwargs(),
         }
         images, _ = high_res.apply(**kwargs)
@@ -568,7 +641,9 @@ def inpaint(task: Task):
         "num_inference_steps": task.get_steps(),
         **task.ip_kwargs(),
     }
-    images = inpainter.process(**kwargs)
+    images, mask = inpainter.process(**kwargs)
+
+    upload_image(mask, "crecoAI/{}_mask.png".format(task.get_taskId()))
 
     generated_image_urls = upload_images(images, key, task.get_taskId())
 
@@ -617,9 +692,7 @@ def replace_bg(task: Task):
 @update_db
 @slack.auto_send_alert
 def remove_bg(task: Task):
-    output_image = remove_background_v2.remove(
-        task.get_imageUrl(), model_type=task.get_modelType()
-    )
+    output_image = remove_background_v3.remove(task.get_imageUrl())
 
     output_key = "crecoAI/{}_rmbg.png".format(task.get_taskId())
     image_url = upload_image(output_image, output_key)
@@ -732,6 +805,67 @@ def rt_draw_img(task: Task):
     return {"image": base64_image}
 
 
+@update_db
+@auto_clear_cuda_and_gc(controlnet)
+@slack.auto_send_alert
+def depth_rig(task: Task):
+    # Note : This task is for only processing a hardcoded character rig model using depth controlnet
+    # Hack : This model requires hardcoded depth images for optimal processing, so we pass it by default
+    default_depth_url = "https://s3.ap-south-1.amazonaws.com/assets.autodraft.in/character-sheet/rigs/character-rig-depth-map.png"
+
+    params = get_patched_prompt_text2img(task)
+
+    width, height = get_intermediate_dimension(task)
+
+    controlnet.load_model("depth")
+
+    lora_patcher = lora_style.get_patcher(
+        [controlnet.pipe2, high_res.pipe], task.get_style()
+    )
+    lora_patcher.patch()
+
+    kwargs = {
+        "params": params,
+        "prompt": params.prompt,
+        "num_inference_steps": task.get_steps(),
+        "imageUrl": default_depth_url,
+        "height": height,
+        "seed": task.get_seed(),
+        "width": width,
+        "negative_prompt": task.get_negative_prompt(),
+        **task.t2i_kwargs(),
+        **lora_patcher.kwargs(),
+    }
+    (images, has_nsfw), condition_image = controlnet.process(**kwargs)
+
+    if task.get_high_res_fix():
+        kwargs = {
+            "prompt": params.prompt
+            if params.prompt
+            else [""] * get_num_return_sequences(),
+            "negative_prompt": [task.get_negative_prompt()]
+            * get_num_return_sequences(),
+            "images": images,
+            "width": task.get_width(),
+            "height": task.get_height(),
+            "num_inference_steps": task.get_steps(),
+            "seed": task.get_seed(),
+            **task.high_res_kwargs(),
+        }
+        images, _ = high_res.apply(**kwargs)
+
+    upload_image(condition_image, "crecoAI/{}_condition.png".format(task.get_taskId()))
+    generated_image_urls = upload_images(images, "", task.get_taskId())
+
+    lora_patcher.cleanup()
+
+    return {
+        **params.__dict__,
+        "generated_image_urls": generated_image_urls,
+        "has_nsfw": has_nsfw,
+    }
+
+
 def custom_action(task: Task):
     from external.scripts import __scripts__
 
@@ -759,6 +893,14 @@ def custom_action(task: Task):
 
 
 def load_model_by_task(task_type: TaskType, model_id=-1):
+    from internals.pipelines.controlnets import clear_networks
+
+    # pre-cleanup inpaint and controlnet models
+    if task_type == TaskType.INPAINT or task_type == TaskType.OUTPAINT:
+        clear_networks()
+    else:
+        inpainter.unload()
+
     if not text2img_pipe.is_loaded():
         text2img_pipe.load(get_model_dir())
         img2img_pipe.create(text2img_pipe)
@@ -782,12 +924,14 @@ def load_model_by_task(task_type: TaskType, model_id=-1):
         upscaler.load()
     else:
         if task_type == TaskType.TILE_UPSCALE:
-            if get_is_sdxl():
-                sdxl_tileupscaler.create(high_res, text2img_pipe, model_id)
-            else:
-                controlnet.load_model("tile_upscaler")
+            # if get_is_sdxl():
+            #     sdxl_tileupscaler.create(high_res, text2img_pipe, model_id)
+            # else:
+            controlnet.load_model("tile_upscaler")
         elif task_type == TaskType.CANNY:
             controlnet.load_model("canny")
+        elif task_type == TaskType.CANNY_IMG2IMG:
+            controlnet.load_model("canny_2x")
         elif task_type == TaskType.SCRIBBLE:
             controlnet.load_model("scribble")
         elif task_type == TaskType.LINEARART:
@@ -798,23 +942,24 @@ def load_model_by_task(task_type: TaskType, model_id=-1):
 
 def unload_model_by_task(task_type: TaskType):
     if task_type == TaskType.INPAINT or task_type == TaskType.OUTPAINT:
-        inpainter.unload()
+        # inpainter.unload()
+        pass
     elif task_type == TaskType.REPLACE_BG:
         replace_background.unload()
     elif task_type == TaskType.OBJECT_REMOVAL:
         object_removal.unload()
     elif task_type == TaskType.TILE_UPSCALE:
-        if get_is_sdxl():
-            sdxl_tileupscaler.unload()
-        else:
-            controlnet.unload()
-    elif task_type == TaskType.CANNY:
+        # if get_is_sdxl():
+        #     sdxl_tileupscaler.unload()
+        # else:
         controlnet.unload()
-    elif task_type == TaskType.SCRIBBLE:
-        controlnet.unload()
-    elif task_type == TaskType.LINEARART:
-        controlnet.unload()
-    elif task_type == TaskType.POSE:
+    elif (
+        task_type == TaskType.CANNY
+        or task_type == TaskType.CANNY_IMG2IMG
+        or task_type == TaskType.SCRIBBLE
+        or task_type == TaskType.LINEARART
+        or task_type == TaskType.POSE
+    ):
         controlnet.unload()
 
 
@@ -831,8 +976,6 @@ def model_fn(model_dir):
     set_model_config(config)
     set_root_dir(__file__)
 
-    FailureHandler.register()
-
     avatar.load_local(model_dir)
 
     lora_style.load(model_dir)
@@ -855,15 +998,12 @@ def auto_unload_task(func):
 
 
 @auto_unload_task
-@FailureHandler.clear
 def predict_fn(data, pipe):
     task = Task(data)
     print("task is ", data)
 
     clear_cuda_and_gc()
 
-    FailureHandler.handle(task)
-
     try:
         task_type = task.get_type()
 
@@ -894,11 +1034,16 @@ def predict_fn(data, pipe):
         avatar.fetch_from_network(task.get_model_id())
 
         if task_type == TaskType.TEXT_TO_IMAGE:
+            # Hack : Character Rigging Model Task Redirection
+            if task.get_model_id() == 2000336 or task.get_model_id() == 2000341:
+                return depth_rig(task)
             return text2img(task)
         elif task_type == TaskType.IMAGE_TO_IMAGE:
             return img2img(task)
         elif task_type == TaskType.CANNY:
             return canny(task)
+        elif task_type == TaskType.CANNY_IMG2IMG:
+            return canny_img2img(task)
         elif task_type == TaskType.POSE:
             return pose(task)
         elif task_type == TaskType.TILE_UPSCALE:
diff --git a/internals/data/task.py b/internals/data/task.py
index 991560e9db3ce1afb75c0476bc1b0d75dadc388b..b9972ca3681a888e5ac5a81536d83721480a2e95 100644
--- a/internals/data/task.py
+++ b/internals/data/task.py
@@ -11,6 +11,7 @@ class TaskType(Enum):
     POSE = "POSE"
     CANNY = "CANNY"
     REMOVE_BG = "REMOVE_BG"
+    CANNY_IMG2IMG = "CANNY_IMG2IMG"
     INPAINT = "INPAINT"
     UPSCALE_IMAGE = "UPSCALE_IMAGE"
     TILE_UPSCALE = "TILE_UPSCALE"
@@ -47,12 +48,18 @@ class Task:
         elif len(prompt) > 200:
             self.__data["prompt"] = data.get("prompt", "")[:200] + ", "
 
+    def get_environment(self) -> str:
+        return self.__data.get("stage", "prod")
+
     def get_taskId(self) -> str:
         return self.__data.get("task_id")
 
     def get_sourceId(self) -> str:
         return self.__data.get("source_id")
 
+    def get_slack_url(self) -> str:
+        return self.__data.get("slack_url", None)
+
     def get_imageUrl(self) -> str:
         return self.__data.get("imageUrl", None)
 
@@ -150,12 +157,18 @@ class Task:
     def get_access_token(self) -> str:
         return self.__data.get("access_token", "")
 
+    def get_apply_preprocess(self) -> bool:
+        return self.__data.get("apply_preprocess", True)
+
     def get_high_res_fix(self) -> bool:
         return self.__data.get("high_res_fix", False)
 
     def get_base_dimension(self):
         return self.__data.get("base_dimension", None)
 
+    def get_process_mode(self):
+        return self.__data.get("process_mode", None)
+
     def get_action_data(self) -> dict:
         "If task_type is CUSTOM_ACTION, then this will return the action data with 'name' as key"
         return self.__data.get("action_data", {})
@@ -175,6 +188,9 @@ class Task:
     def cnc_kwargs(self) -> dict:
         return dict(self.__get_kwargs("cnc_"))
 
+    def cnci2i_kwargs(self) -> dict:
+        return dict(self.__get_kwargs("cnci2i_"))
+
     def cnp_kwargs(self) -> dict:
         return dict(self.__get_kwargs("cnp_"))
 
@@ -192,7 +208,7 @@ class Task:
 
     def __get_kwargs(self, prefix: str):
         for k, v in self.__data.items():
-            if k.startswith(prefix):
+            if k.startswith(prefix) and v != -1:
                 yield k[len(prefix) :], v
 
     @property
diff --git a/internals/pipelines/commons.py b/internals/pipelines/commons.py
index d67b23659532e257394efc7f37e2d65c1400dbb6..3be2676dc8e69d2e4023180858942b2daac1c044 100644
--- a/internals/pipelines/commons.py
+++ b/internals/pipelines/commons.py
@@ -11,11 +11,14 @@ from diffusers import (
 
 from internals.data.result import Result
 from internals.pipelines.twoStepPipeline import two_step_pipeline
+from internals.util import get_generators
 from internals.util.commons import disable_safety_checker, download_image
 from internals.util.config import (
+    get_base_model_revision,
     get_base_model_variant,
     get_hf_token,
     get_is_sdxl,
+    get_low_gpu_mem,
     get_num_return_sequences,
 )
 
@@ -38,6 +41,9 @@ class Text2Img(AbstractPipeline):
 
     def load(self, model_dir: str):
         if get_is_sdxl():
+            print(
+                f"Loading model {model_dir} - {get_base_model_variant()}, {get_base_model_revision()}"
+            )
             vae = AutoencoderKL.from_pretrained(
                 "madebyollin/sdxl-vae-fp16-fix", torch_dtype=torch.float16
             )
@@ -47,6 +53,7 @@ class Text2Img(AbstractPipeline):
                 token=get_hf_token(),
                 use_safetensors=True,
                 variant=get_base_model_variant(),
+                revision=get_base_model_revision(),
             )
             pipe.vae = vae
             pipe.to("cuda")
@@ -70,9 +77,9 @@ class Text2Img(AbstractPipeline):
         self.__patch()
 
     def __patch(self):
-        if get_is_sdxl():
-            self.pipe.enable_vae_tiling()
-            self.pipe.enable_vae_slicing()
+        if get_is_sdxl() or get_low_gpu_mem():
+            self.pipe.vae.enable_tiling()
+            self.pipe.vae.enable_slicing()
         self.pipe.enable_xformers_memory_efficient_attention()
 
     @torch.inference_mode()
@@ -82,12 +89,15 @@ class Text2Img(AbstractPipeline):
         num_inference_steps: int,
         height: int,
         width: int,
+        seed: int,
         negative_prompt: str,
         iteration: float = 3.0,
         **kwargs,
     ):
         prompt = params.prompt
 
+        generator = get_generators(seed, get_num_return_sequences())
+
         if params.prompt_left and params.prompt_right:
             # multi-character pipelines
             prompt = [params.prompt[0], params.prompt_left[0], params.prompt_right[0]]
@@ -99,6 +109,7 @@ class Text2Img(AbstractPipeline):
                 "width": width,
                 "num_inference_steps": num_inference_steps,
                 "negative_prompt": [negative_prompt or ""] * len(prompt),
+                "generator": generator,
                 **kwargs,
             }
             result = self.pipe.multi_character_diffusion(**kwargs)
@@ -125,8 +136,11 @@ class Text2Img(AbstractPipeline):
                 "width": width,
                 "negative_prompt": [negative_prompt or ""] * get_num_return_sequences(),
                 "num_inference_steps": num_inference_steps,
+                "guidance_scale": 7.5,
+                "generator": generator,
                 **kwargs,
             }
+            print(kwargs)
             result = self.pipe.__call__(**kwargs)
 
         return Result.from_result(result)
@@ -145,6 +159,7 @@ class Img2Img(AbstractPipeline):
                 torch_dtype=torch.float16,
                 token=get_hf_token(),
                 variant=get_base_model_variant(),
+                revision=get_base_model_revision(),
                 use_safetensors=True,
             ).to("cuda")
         else:
@@ -183,20 +198,24 @@ class Img2Img(AbstractPipeline):
         num_inference_steps: int,
         width: int,
         height: int,
+        seed: int,
         strength: float = 0.75,
         guidance_scale: float = 7.5,
         **kwargs,
     ):
         image = download_image(imageUrl).resize((width, height))
 
+        generator = get_generators(seed, get_num_return_sequences())
+
         kwargs = {
             "prompt": prompt,
-            "image": image,
+            "image": [image] * get_num_return_sequences(),
             "strength": strength,
             "negative_prompt": negative_prompt,
             "guidance_scale": guidance_scale,
             "num_images_per_prompt": 1,
             "num_inference_steps": num_inference_steps,
+            "generator": generator,
             **kwargs,
         }
         result = self.pipe.__call__(**kwargs)
diff --git a/internals/pipelines/controlnets.py b/internals/pipelines/controlnets.py
index 7b4d6dac93136d71e951506f25b2499f3f77a2bd..3fea5d71968b8c2495cdd6754e57f5e95f0852a2 100644
--- a/internals/pipelines/controlnets.py
+++ b/internals/pipelines/controlnets.py
@@ -1,3 +1,4 @@
+import os
 from typing import AbstractSet, List, Literal, Optional, Union
 
 import cv2
@@ -17,6 +18,7 @@ from diffusers import (
     StableDiffusionControlNetImg2ImgPipeline,
     StableDiffusionControlNetPipeline,
     StableDiffusionXLAdapterPipeline,
+    StableDiffusionXLControlNetImg2ImgPipeline,
     StableDiffusionXLControlNetPipeline,
     T2IAdapter,
     UniPCMultistepScheduler,
@@ -29,9 +31,9 @@ from tqdm import gui
 from transformers import pipeline
 
 import internals.util.image as ImageUtil
-from external.midas import apply_midas
 from internals.data.result import Result
 from internals.pipelines.commons import AbstractPipeline
+from internals.util import get_generators
 from internals.util.cache import clear_cuda_and_gc
 from internals.util.commons import download_image
 from internals.util.config import (
@@ -39,9 +41,51 @@ from internals.util.config import (
     get_hf_token,
     get_is_sdxl,
     get_model_dir,
+    get_num_return_sequences,
 )
 
-CONTROLNET_TYPES = Literal["pose", "canny", "scribble", "linearart", "tile_upscaler"]
+CONTROLNET_TYPES = Literal[
+    "pose", "canny", "scribble", "linearart", "tile_upscaler", "canny_2x"
+]
+
+__CN_MODELS = {}
+MAX_CN_MODELS = 3
+
+
+def clear_networks():
+    global __CN_MODELS
+    __CN_MODELS = {}
+
+
+def load_network_model_by_key(repo_id: str, pipeline_type: str):
+    global __CN_MODELS
+
+    if repo_id in __CN_MODELS:
+        return __CN_MODELS[repo_id]
+
+    if len(__CN_MODELS) >= MAX_CN_MODELS:
+        __CN_MODELS = {}
+
+    if pipeline_type == "controlnet":
+        model = ControlNetModel.from_pretrained(
+            repo_id,
+            torch_dtype=torch.float16,
+            cache_dir=get_hf_cache_dir(),
+            token=get_hf_token(),
+        ).to("cuda")
+    elif pipeline_type == "t2i":
+        model = T2IAdapter.from_pretrained(
+            repo_id,
+            torch_dtype=torch.float16,
+            varient="fp16",
+            token=get_hf_token(),
+        ).to("cuda")
+    else:
+        raise Exception("Invalid pipeline type")
+
+    __CN_MODELS[repo_id] = model
+
+    return model
 
 
 class StableDiffusionNetworkModelPipelineLoader:
@@ -57,11 +101,6 @@ class StableDiffusionNetworkModelPipelineLoader:
         pipeline_type,
         base_pipe: Optional[AbstractSet] = None,
     ):
-        if is_sdxl and is_img2img:
-            # Does not matter pipeline type but tile upscale is not supported
-            print("Warning: Tile upscale is not supported on SDXL")
-            return None
-
         if base_pipe is None:
             pretrained = True
             kwargs = {
@@ -75,7 +114,17 @@ class StableDiffusionNetworkModelPipelineLoader:
             kwargs = {
                 **base_pipe.pipe.components,  # pyright: ignore
             }
+            if get_is_sdxl():
+                kwargs.pop("image_encoder", None)
+                kwargs.pop("feature_extractor", None)
 
+        if is_sdxl and is_img2img and pipeline_type == "controlnet":
+            model = (
+                StableDiffusionXLControlNetImg2ImgPipeline.from_pretrained
+                if pretrained
+                else StableDiffusionXLControlNetImg2ImgPipeline
+            )
+            return model(controlnet=network_model, **kwargs).to("cuda")
         if is_sdxl and pipeline_type == "controlnet":
             model = (
                 StableDiffusionXLControlNetPipeline.from_pretrained
@@ -146,9 +195,10 @@ class ControlNet(AbstractPipeline):
     def load_model(self, task_name: CONTROLNET_TYPES):
         "Appropriately loads the network module, pipelines and cache it for reuse."
 
-        config = self.__model_sdxl if get_is_sdxl() else self.__model_normal
         if self.__current_task_name == task_name:
             return
+
+        config = self.__model_sdxl if get_is_sdxl() else self.__model_normal
         model = config[task_name]
         if not model:
             raise Exception(f"ControlNet is not supported for {task_name}")
@@ -176,31 +226,13 @@ class ControlNet(AbstractPipeline):
     def __load_network_model(self, model_name, pipeline_type):
         "Loads the network module, eg: ControlNet or T2I Adapters"
 
-        def load_controlnet(model):
-            return ControlNetModel.from_pretrained(
-                model,
-                torch_dtype=torch.float16,
-                cache_dir=get_hf_cache_dir(),
-            ).to("cuda")
-
-        def load_t2i(model):
-            return T2IAdapter.from_pretrained(
-                model,
-                torch_dtype=torch.float16,
-                varient="fp16",
-            ).to("cuda")
-
         if type(model_name) == str:
-            if pipeline_type == "controlnet":
-                return load_controlnet(model_name)
-            if pipeline_type == "t2i":
-                return load_t2i(model_name)
-            raise Exception("Invalid pipeline type")
+            return load_network_model_by_key(model_name, pipeline_type)
         elif type(model_name) == list:
             if pipeline_type == "controlnet":
                 cns = []
                 for model in model_name:
-                    cns.append(load_controlnet(model))
+                    cns.append(load_network_model_by_key(model, pipeline_type))
                 return MultiControlNetModel(cns).to("cuda")
             elif pipeline_type == "t2i":
                 raise Exception("Multi T2I adapters are not supported")
@@ -219,9 +251,10 @@ class ControlNet(AbstractPipeline):
                 pipe.enable_vae_slicing()
                 pipe.enable_xformers_memory_efficient_attention()
                 # this scheduler produces good outputs for t2i adapters
-                pipe.scheduler = EulerAncestralDiscreteScheduler.from_config(
-                    pipe.scheduler.config
-                )
+                if pipeline_type == "t2i":
+                    pipe.scheduler = EulerAncestralDiscreteScheduler.from_config(
+                        pipe.scheduler.config
+                    )
             else:
                 pipe.enable_xformers_memory_efficient_attention()
             return pipe
@@ -229,7 +262,7 @@ class ControlNet(AbstractPipeline):
         # If the pipeline type is changed we should reload all
         # the pipelines
         if not self.__loaded or self.__pipe_type != pipeline_type:
-            # controlnet pipeline for tile upscaler
+            # controlnet pipeline for tile upscaler or any pipeline with img2img + network support
             pipe = StableDiffusionNetworkModelPipelineLoader(
                 is_sdxl=get_is_sdxl(),
                 is_img2img=True,
@@ -278,6 +311,8 @@ class ControlNet(AbstractPipeline):
     def process(self, **kwargs):
         if self.__current_task_name == "pose":
             return self.process_pose(**kwargs)
+        if self.__current_task_name == "depth":
+            return self.process_depth(**kwargs)
         if self.__current_task_name == "canny":
             return self.process_canny(**kwargs)
         if self.__current_task_name == "scribble":
@@ -286,6 +321,8 @@ class ControlNet(AbstractPipeline):
             return self.process_linearart(**kwargs)
         if self.__current_task_name == "tile_upscaler":
             return self.process_tile_upscaler(**kwargs)
+        if self.__current_task_name == "canny_2x":
+            return self.process_canny_2x(**kwargs)
         raise Exception("ControlNet is not loaded with any model")
 
     @torch.inference_mode()
@@ -298,16 +335,22 @@ class ControlNet(AbstractPipeline):
         negative_prompt: List[str],
         height: int,
         width: int,
-        guidance_scale: float = 9,
+        guidance_scale: float = 7.5,
+        apply_preprocess: bool = True,
         **kwargs,
     ):
         if self.__current_task_name != "canny":
             raise Exception("ControlNet is not loaded with canny model")
 
-        torch.manual_seed(seed)
+        generator = get_generators(seed, get_num_return_sequences())
+
+        init_image = self.preprocess_image(imageUrl, width, height)
+        if apply_preprocess:
+            init_image = ControlNet.canny_detect_edge(init_image)
+            init_image = init_image.resize((width, height))
 
-        init_image = download_image(imageUrl).resize((width, height))
-        init_image = ControlNet.canny_detect_edge(init_image)
+        # if get_is_sdxl():
+        #     kwargs["controlnet_conditioning_scale"] = 0.5
 
         kwargs = {
             "prompt": prompt,
@@ -318,11 +361,67 @@ class ControlNet(AbstractPipeline):
             "num_inference_steps": num_inference_steps,
             "height": height,
             "width": width,
+            "generator": generator,
             **kwargs,
         }
 
+        print(kwargs)
         result = self.pipe2.__call__(**kwargs)
-        return Result.from_result(result)
+        return Result.from_result(result), init_image
+
+    @torch.inference_mode()
+    def process_canny_2x(
+        self,
+        prompt: List[str],
+        imageUrl: str,
+        seed: int,
+        num_inference_steps: int,
+        negative_prompt: List[str],
+        height: int,
+        width: int,
+        guidance_scale: float = 8.5,
+        **kwargs,
+    ):
+        if self.__current_task_name != "canny_2x":
+            raise Exception("ControlNet is not loaded with canny model")
+
+        generator = get_generators(seed, get_num_return_sequences())
+
+        init_image = self.preprocess_image(imageUrl, width, height)
+        canny_image = ControlNet.canny_detect_edge(init_image).resize((width, height))
+        depth_image = ControlNet.depth_image(init_image).resize((width, height))
+
+        condition_scale = kwargs.get("controlnet_conditioning_scale", None)
+        condition_factor = kwargs.get("control_guidance_end", None)
+        print("condition_scale", condition_scale)
+
+        if not get_is_sdxl():
+            kwargs["guidance_scale"] = 7.5
+            kwargs["strength"] = 0.8
+            kwargs["controlnet_conditioning_scale"] = [condition_scale or 1.0, 0.3]
+        else:
+            kwargs["controlnet_conditioning_scale"] = [condition_scale or 0.8, 0.3]
+
+        kwargs["control_guidance_end"] = [condition_factor or 1.0, 1.0]
+
+        kwargs = {
+            "prompt": prompt[0],
+            "image": [init_image] * get_num_return_sequences(),
+            "control_image": [canny_image, depth_image],
+            "guidance_scale": guidance_scale,
+            "num_images_per_prompt": get_num_return_sequences(),
+            "negative_prompt": negative_prompt[0],
+            "num_inference_steps": num_inference_steps,
+            "strength": 1.0,
+            "height": height,
+            "width": width,
+            "generator": generator,
+            **kwargs,
+        }
+        print(kwargs)
+
+        result = self.pipe.__call__(**kwargs)
+        return Result.from_result(result), canny_image
 
     @torch.inference_mode()
     def process_pose(
@@ -340,22 +439,23 @@ class ControlNet(AbstractPipeline):
         if self.__current_task_name != "pose":
             raise Exception("ControlNet is not loaded with pose model")
 
-        torch.manual_seed(seed)
+        generator = get_generators(seed, get_num_return_sequences())
 
         kwargs = {
             "prompt": prompt[0],
             "image": image,
-            "num_images_per_prompt": 4,
+            "num_images_per_prompt": get_num_return_sequences(),
             "num_inference_steps": num_inference_steps,
             "negative_prompt": negative_prompt[0],
             "guidance_scale": guidance_scale,
             "height": height,
             "width": width,
+            "generator": generator,
             **kwargs,
         }
         print(kwargs)
         result = self.pipe2.__call__(**kwargs)
-        return Result.from_result(result)
+        return Result.from_result(result), image
 
     @torch.inference_mode()
     def process_tile_upscaler(
@@ -374,26 +474,60 @@ class ControlNet(AbstractPipeline):
         if self.__current_task_name != "tile_upscaler":
             raise Exception("ControlNet is not loaded with tile_upscaler model")
 
-        torch.manual_seed(seed)
+        init_image = None
+        # find the correct seed and imageUrl from imageUrl
+        try:
+            p = os.path.splitext(imageUrl)[0]
+            p = p.split("/")[-1]
+            p = p.split("_")[-1]
 
-        init_image = download_image(imageUrl).resize((width, height))
-        condition_image = self.__resize_for_condition_image(
-            init_image, resize_dimension
-        )
+            seed = seed + int(p)
+
+            if "_canny_2x" or "_linearart" in imageUrl:
+                imageUrl = imageUrl.replace("_canny_2x", "_canny_2x_highres").replace(
+                    "_linearart_highres", ""
+                )
+                init_image = download_image(imageUrl)
+                width, height = init_image.size
+
+                print("Setting imageUrl with width and height", imageUrl, width, height)
+        except Exception as e:
+            print("Failed to extract seed from imageUrl", e)
+
+        print("Setting seed", seed)
+        generator = get_generators(seed)
+
+        if not init_image:
+            init_image = download_image(imageUrl).resize((width, height))
+
+        condition_image = ImageUtil.resize_image(init_image, 1024)
+        if get_is_sdxl():
+            condition_image = condition_image.resize(init_image.size)
+        else:
+            condition_image = self.__resize_for_condition_image(
+                init_image, resize_dimension
+            )
+
+        if get_is_sdxl():
+            kwargs["strength"] = 1.0
+            kwargs["controlnet_conditioning_scale"] = 1.0
+            kwargs["image"] = init_image
+        else:
+            kwargs["image"] = condition_image
+            kwargs["guidance_scale"] = guidance_scale
 
         kwargs = {
-            "image": condition_image,
             "prompt": prompt,
             "control_image": condition_image,
             "num_inference_steps": num_inference_steps,
             "negative_prompt": negative_prompt,
             "height": condition_image.size[1],
             "width": condition_image.size[0],
-            "guidance_scale": guidance_scale,
+            "generator": generator,
             **kwargs,
         }
         result = self.pipe.__call__(**kwargs)
-        return Result.from_result(result)
+        return Result.from_result(result), condition_image
 
     @torch.inference_mode()
     def process_scribble(
@@ -406,16 +540,28 @@ class ControlNet(AbstractPipeline):
         height: int,
         width: int,
         guidance_scale: float = 7.5,
+        apply_preprocess: bool = True,
         **kwargs,
     ):
         if self.__current_task_name != "scribble":
             raise Exception("ControlNet is not loaded with scribble model")
 
-        torch.manual_seed(seed)
+        generator = get_generators(seed, get_num_return_sequences())
+
+        if apply_preprocess:
+            if get_is_sdxl():
+                # We use sketch in SDXL
+                image = [
+                    ControlNet.pidinet_image(image[0]).resize((width, height))
+                ] * len(image)
+            else:
+                image = [
+                    ControlNet.scribble_image(image[0]).resize((width, height))
+                ] * len(image)
 
         sdxl_args = (
             {
-                "guidance_scale": 6,
+                "guidance_scale": guidance_scale,
                 "adapter_conditioning_scale": 1.0,
                 "adapter_conditioning_factor": 1.0,
             }
@@ -431,11 +577,12 @@ class ControlNet(AbstractPipeline):
             "height": height,
             "width": width,
             "guidance_scale": guidance_scale,
+            "generator": generator,
             **sdxl_args,
             **kwargs,
         }
         result = self.pipe2.__call__(**kwargs)
-        return Result.from_result(result)
+        return Result.from_result(result), image[0]
 
     @torch.inference_mode()
     def process_linearart(
@@ -448,20 +595,26 @@ class ControlNet(AbstractPipeline):
         height: int,
         width: int,
         guidance_scale: float = 7.5,
+        apply_preprocess: bool = True,
         **kwargs,
     ):
         if self.__current_task_name != "linearart":
             raise Exception("ControlNet is not loaded with linearart model")
 
-        torch.manual_seed(seed)
+        generator = get_generators(seed, get_num_return_sequences())
 
-        init_image = download_image(imageUrl).resize((width, height))
-        condition_image = ControlNet.linearart_condition_image(init_image)
+        init_image = self.preprocess_image(imageUrl, width, height)
+
+        if apply_preprocess:
+            condition_image = ControlNet.linearart_condition_image(init_image)
+            condition_image = condition_image.resize(init_image.size)
+        else:
+            condition_image = init_image
 
         # we use t2i adapter and the conditioning scale should always be 0.8
         sdxl_args = (
             {
-                "guidance_scale": 6,
+                "guidance_scale": guidance_scale,
                 "adapter_conditioning_scale": 1.0,
                 "adapter_conditioning_factor": 1.0,
             }
@@ -470,18 +623,68 @@ class ControlNet(AbstractPipeline):
         )
 
         kwargs = {
-            "image": [condition_image] * 4,
+            "image": [condition_image] * get_num_return_sequences(),
+            "prompt": prompt,
+            "num_inference_steps": num_inference_steps,
+            "negative_prompt": negative_prompt,
+            "height": height,
+            "width": width,
+            "guidance_scale": guidance_scale,
+            "generator": generator,
+            **sdxl_args,
+            **kwargs,
+        }
+        result = self.pipe2.__call__(**kwargs)
+        return Result.from_result(result), condition_image
+
+    @torch.inference_mode()
+    def process_depth(
+        self,
+        imageUrl: str,
+        prompt: Union[str, List[str]],
+        negative_prompt: Union[str, List[str]],
+        num_inference_steps: int,
+        seed: int,
+        height: int,
+        width: int,
+        guidance_scale: float = 7.5,
+        apply_preprocess: bool = True,
+        **kwargs,
+    ):
+        if self.__current_task_name != "depth":
+            raise Exception("ControlNet is not loaded with depth model")
+
+        generator = get_generators(seed, get_num_return_sequences())
+
+        init_image = self.preprocess_image(imageUrl, width, height)
+
+        if apply_preprocess:
+            condition_image = ControlNet.depth_image(init_image)
+            condition_image = condition_image.resize(init_image.size)
+        else:
+            condition_image = init_image
+
+        # for using the depth controlnet in this SDXL model, these hyperparamters are optimal
+        sdxl_args = (
+            {"controlnet_conditioning_scale": 0.2, "control_guidance_end": 0.2}
+            if get_is_sdxl()
+            else {}
+        )
+
+        kwargs = {
+            "image": [condition_image] * get_num_return_sequences(),
             "prompt": prompt,
             "num_inference_steps": num_inference_steps,
             "negative_prompt": negative_prompt,
             "height": height,
             "width": width,
             "guidance_scale": guidance_scale,
+            "generator": generator,
             **sdxl_args,
             **kwargs,
         }
         result = self.pipe2.__call__(**kwargs)
-        return Result.from_result(result)
+        return Result.from_result(result), condition_image
 
     def cleanup(self):
         """Doesn't do anything considering new diffusers has itself a cleanup mechanism
@@ -504,12 +707,15 @@ class ControlNet(AbstractPipeline):
     def linearart_condition_image(image: Image.Image, **kwargs) -> Image.Image:
         processor = LineartDetector.from_pretrained("lllyasviel/Annotators")
         if get_is_sdxl():
-            kwargs = {"detect_resolution": 384, **kwargs}
+            kwargs = {"detect_resolution": 384, "image_resolution": 1024, **kwargs}
+        else:
+            kwargs = {}
 
         image = processor.__call__(input_image=image, **kwargs)
         return image
 
     @staticmethod
+    @torch.inference_mode()
     def depth_image(image: Image.Image) -> Image.Image:
         global midas, midas_transforms
         if "midas" not in globals():
@@ -555,6 +761,10 @@ class ControlNet(AbstractPipeline):
         canny_image = Image.fromarray(image_array)
         return canny_image
 
+    def preprocess_image(self, imageUrl, width, height) -> Image.Image:
+        image = download_image(imageUrl, mode="RGBA").resize((width, height))
+        return ImageUtil.alpha_to_white(image)
+
     def __resize_for_condition_image(self, image: Image.Image, resolution: int):
         input_image = image.convert("RGB")
         W, H = input_image.size
@@ -572,6 +782,7 @@ class ControlNet(AbstractPipeline):
         "linearart": "lllyasviel/control_v11p_sd15_lineart",
         "scribble": "lllyasviel/control_v11p_sd15_scribble",
         "tile_upscaler": "lllyasviel/control_v11f1e_sd15_tile",
+        "canny_2x": "lllyasviel/control_v11p_sd15_canny, lllyasviel/control_v11f1p_sd15_depth",
     }
     __model_normal_types = {
         "pose": "controlnet",
@@ -579,19 +790,24 @@ class ControlNet(AbstractPipeline):
         "linearart": "controlnet",
         "scribble": "controlnet",
         "tile_upscaler": "controlnet",
+        "canny_2x": "controlnet",
     }
 
     __model_sdxl = {
         "pose": "thibaud/controlnet-openpose-sdxl-1.0",
-        "canny": "diffusers/controlnet-canny-sdxl-1.0",
+        "canny": "Autodraft/controlnet-canny-sdxl-1.0",
+        "depth": "Autodraft/controlnet-depth-sdxl-1.0",
+        "canny_2x": "Autodraft/controlnet-canny-sdxl-1.0, Autodraft/controlnet-depth-sdxl-1.0",
         "linearart": "TencentARC/t2i-adapter-lineart-sdxl-1.0",
         "scribble": "TencentARC/t2i-adapter-sketch-sdxl-1.0",
-        "tile_upscaler": None,
+        "tile_upscaler": "Autodraft/ControlNet_SDXL_tile_upscale",
     }
     __model_sdxl_types = {
         "pose": "controlnet",
         "canny": "controlnet",
+        "canny_2x": "controlnet",
+        "depth": "controlnet",
         "linearart": "t2i",
         "scribble": "t2i",
-        "tile_upscaler": None,
+        "tile_upscaler": "controlnet",
     }
diff --git a/internals/pipelines/high_res.py b/internals/pipelines/high_res.py
index ad06b8f34c69038ae9fae9832e199d44113391c0..f86149ec68fb57ee5bae8cc158c73b2a57ab63aa 100644
--- a/internals/pipelines/high_res.py
+++ b/internals/pipelines/high_res.py
@@ -1,15 +1,22 @@
 import math
-from typing import List, Optional
+from typing import Dict, List, Optional
 
 from PIL import Image
 
 from internals.data.result import Result
 from internals.pipelines.commons import AbstractPipeline, Img2Img
+from internals.util import get_generators
 from internals.util.cache import clear_cuda_and_gc
-from internals.util.config import get_base_dimension, get_is_sdxl, get_model_dir
+from internals.util.config import (
+    get_base_dimension,
+    get_is_sdxl,
+    get_model_dir,
+    get_num_return_sequences,
+)
+from internals.util.sdxl_lightning import LightningMixin
 
 
-class HighRes(AbstractPipeline):
+class HighRes(AbstractPipeline, LightningMixin):
     def load(self, img2img: Optional[Img2Img] = None):
         if hasattr(self, "pipe"):
             return
@@ -21,6 +28,9 @@ class HighRes(AbstractPipeline):
         self.pipe = img2img.pipe
         self.img2img = img2img
 
+        if get_is_sdxl():
+            self.configure_sdxl_lightning(img2img.pipe)
+
     def apply(
         self,
         prompt: List[str],
@@ -28,6 +38,7 @@ class HighRes(AbstractPipeline):
         images,
         width: int,
         height: int,
+        seed: int,
         num_inference_steps: int,
         strength: float = 0.5,
         guidance_scale: int = 9,
@@ -35,7 +46,18 @@ class HighRes(AbstractPipeline):
     ):
         clear_cuda_and_gc()
 
+        generator = get_generators(seed, get_num_return_sequences())
+
         images = [image.resize((width, height)) for image in images]
+
+        # if get_is_sdxl():
+        #     kwargs["guidance_scale"] = kwargs.get("guidance_scale", 15)
+        #     kwargs["strength"] = kwargs.get("strength", 0.6)
+
+        if get_is_sdxl():
+            extra_args = self.enable_sdxl_lightning()
+            kwargs.update(extra_args)
+
         kwargs = {
             "prompt": prompt,
             "image": images,
@@ -43,9 +65,16 @@ class HighRes(AbstractPipeline):
             "negative_prompt": negative_prompt,
             "guidance_scale": guidance_scale,
             "num_inference_steps": num_inference_steps,
+            "generator": generator,
             **kwargs,
         }
+
+        print(kwargs)
         result = self.pipe.__call__(**kwargs)
+
+        if get_is_sdxl():
+            self.disable_sdxl_lightning()
+
         return Result.from_result(result)
 
     @staticmethod
diff --git a/internals/pipelines/inpaint_imageprocessor.py b/internals/pipelines/inpaint_imageprocessor.py
new file mode 100644
index 0000000000000000000000000000000000000000..40dfce83aaff0c941bdac962515c6b01eb171d88
--- /dev/null
+++ b/internals/pipelines/inpaint_imageprocessor.py
@@ -0,0 +1,976 @@
+# Copyright 2023 The HuggingFace Team. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import warnings
+from typing import List, Optional, Tuple, Union
+
+import numpy as np
+import PIL.Image
+import torch
+from diffusers.configuration_utils import ConfigMixin, register_to_config
+from diffusers.utils import CONFIG_NAME, PIL_INTERPOLATION, deprecate
+from PIL import Image, ImageFilter, ImageOps
+
+PipelineImageInput = Union[
+    PIL.Image.Image,
+    np.ndarray,
+    torch.FloatTensor,
+    List[PIL.Image.Image],
+    List[np.ndarray],
+    List[torch.FloatTensor],
+]
+
+PipelineDepthInput = PipelineImageInput
+
+
+class VaeImageProcessor(ConfigMixin):
+    """
+    Image processor for VAE.
+
+    Args:
+        do_resize (`bool`, *optional*, defaults to `True`):
+            Whether to downscale the image's (height, width) dimensions to multiples of `vae_scale_factor`. Can accept
+            `height` and `width` arguments from [`image_processor.VaeImageProcessor.preprocess`] method.
+        vae_scale_factor (`int`, *optional*, defaults to `8`):
+            VAE scale factor. If `do_resize` is `True`, the image is automatically resized to multiples of this factor.
+        resample (`str`, *optional*, defaults to `lanczos`):
+            Resampling filter to use when resizing the image.
+        do_normalize (`bool`, *optional*, defaults to `True`):
+            Whether to normalize the image to [-1,1].
+        do_binarize (`bool`, *optional*, defaults to `False`):
+            Whether to binarize the image to 0/1.
+        do_convert_rgb (`bool`, *optional*, defaults to be `False`):
+            Whether to convert the images to RGB format.
+        do_convert_grayscale (`bool`, *optional*, defaults to be `False`):
+            Whether to convert the images to grayscale format.
+    """
+
+    config_name = CONFIG_NAME
+
+    @register_to_config
+    def __init__(
+        self,
+        do_resize: bool = True,
+        vae_scale_factor: int = 8,
+        resample: str = "lanczos",
+        do_normalize: bool = True,
+        do_binarize: bool = False,
+        do_convert_rgb: bool = False,
+        do_convert_grayscale: bool = False,
+    ):
+        super().__init__()
+        if do_convert_rgb and do_convert_grayscale:
+            raise ValueError(
+                "`do_convert_rgb` and `do_convert_grayscale` can not both be set to `True`,"
+                " if you intended to convert the image into RGB format, please set `do_convert_grayscale = False`.",
+                " if you intended to convert the image into grayscale format, please set `do_convert_rgb = False`",
+            )
+            self.config.do_convert_rgb = False
+
+    @staticmethod
+    def numpy_to_pil(images: np.ndarray) -> List[PIL.Image.Image]:
+        """
+        Convert a numpy image or a batch of images to a PIL image.
+        """
+        if images.ndim == 3:
+            images = images[None, ...]
+        images = (images * 255).round().astype("uint8")
+        if images.shape[-1] == 1:
+            # special case for grayscale (single channel) images
+            pil_images = [
+                Image.fromarray(image.squeeze(), mode="L") for image in images
+            ]
+        else:
+            pil_images = [Image.fromarray(image) for image in images]
+
+        return pil_images
+
+    @staticmethod
+    def pil_to_numpy(
+        images: Union[List[PIL.Image.Image], PIL.Image.Image]
+    ) -> np.ndarray:
+        """
+        Convert a PIL image or a list of PIL images to NumPy arrays.
+        """
+        if not isinstance(images, list):
+            images = [images]
+        images = [np.array(image).astype(np.float32) / 255.0 for image in images]
+        images = np.stack(images, axis=0)
+
+        return images
+
+    @staticmethod
+    def numpy_to_pt(images: np.ndarray) -> torch.FloatTensor:
+        """
+        Convert a NumPy image to a PyTorch tensor.
+        """
+        if images.ndim == 3:
+            images = images[..., None]
+
+        images = torch.from_numpy(images.transpose(0, 3, 1, 2))
+        return images
+
+    @staticmethod
+    def pt_to_numpy(images: torch.FloatTensor) -> np.ndarray:
+        """
+        Convert a PyTorch tensor to a NumPy image.
+        """
+        images = images.cpu().permute(0, 2, 3, 1).float().numpy()
+        return images
+
+    @staticmethod
+    def normalize(
+        images: Union[np.ndarray, torch.Tensor]
+    ) -> Union[np.ndarray, torch.Tensor]:
+        """
+        Normalize an image array to [-1,1].
+        """
+        return 2.0 * images - 1.0
+
+    @staticmethod
+    def denormalize(
+        images: Union[np.ndarray, torch.Tensor]
+    ) -> Union[np.ndarray, torch.Tensor]:
+        """
+        Denormalize an image array to [0,1].
+        """
+        return (images / 2 + 0.5).clamp(0, 1)
+
+    @staticmethod
+    def convert_to_rgb(image: PIL.Image.Image) -> PIL.Image.Image:
+        """
+        Converts a PIL image to RGB format.
+        """
+        image = image.convert("RGB")
+
+        return image
+
+    @staticmethod
+    def convert_to_grayscale(image: PIL.Image.Image) -> PIL.Image.Image:
+        """
+        Converts a PIL image to grayscale format.
+        """
+        image = image.convert("L")
+
+        return image
+
+    @staticmethod
+    def blur(image: PIL.Image.Image, blur_factor: int = 4) -> PIL.Image.Image:
+        """
+        Applies Gaussian blur to an image.
+        """
+        image = image.filter(ImageFilter.GaussianBlur(blur_factor))
+
+        return image
+
+    @staticmethod
+    def get_crop_region(mask_image: PIL.Image.Image, width: int, height: int, pad=0):
+        """
+        Finds a rectangular region that contains all masked ares in an image, and expands region to match the aspect ratio of the original image;
+        for example, if user drew mask in a 128x32 region, and the dimensions for processing are 512x512, the region will be expanded to 128x128.
+
+        Args:
+            mask_image (PIL.Image.Image): Mask image.
+            width (int): Width of the image to be processed.
+            height (int): Height of the image to be processed.
+            pad (int, optional): Padding to be added to the crop region. Defaults to 0.
+
+        Returns:
+            tuple: (x1, y1, x2, y2) represent a rectangular region that contains all masked ares in an image and matches the original aspect ratio.
+        """
+
+        mask_image = mask_image.convert("L")
+        mask = np.array(mask_image)
+
+        # 1. find a rectangular region that contains all masked ares in an image
+        h, w = mask.shape
+        crop_left = 0
+        for i in range(w):
+            if not (mask[:, i] == 0).all():
+                break
+            crop_left += 1
+
+        crop_right = 0
+        for i in reversed(range(w)):
+            if not (mask[:, i] == 0).all():
+                break
+            crop_right += 1
+
+        crop_top = 0
+        for i in range(h):
+            if not (mask[i] == 0).all():
+                break
+            crop_top += 1
+
+        crop_bottom = 0
+        for i in reversed(range(h)):
+            if not (mask[i] == 0).all():
+                break
+            crop_bottom += 1
+
+        # 2. add padding to the crop region
+        x1, y1, x2, y2 = (
+            int(max(crop_left - pad, 0)),
+            int(max(crop_top - pad, 0)),
+            int(min(w - crop_right + pad, w)),
+            int(min(h - crop_bottom + pad, h)),
+        )
+
+        # 3. expands crop region to match the aspect ratio of the image to be processed
+        ratio_crop_region = (x2 - x1) / (y2 - y1)
+        ratio_processing = width / height
+
+        if ratio_crop_region > ratio_processing:
+            desired_height = (x2 - x1) / ratio_processing
+            desired_height_diff = int(desired_height - (y2 - y1))
+            y1 -= desired_height_diff // 2
+            y2 += desired_height_diff - desired_height_diff // 2
+            if y2 >= mask_image.height:
+                diff = y2 - mask_image.height
+                y2 -= diff
+                y1 -= diff
+            if y1 < 0:
+                y2 -= y1
+                y1 -= y1
+            if y2 >= mask_image.height:
+                y2 = mask_image.height
+        else:
+            desired_width = (y2 - y1) * ratio_processing
+            desired_width_diff = int(desired_width - (x2 - x1))
+            x1 -= desired_width_diff // 2
+            x2 += desired_width_diff - desired_width_diff // 2
+            if x2 >= mask_image.width:
+                diff = x2 - mask_image.width
+                x2 -= diff
+                x1 -= diff
+            if x1 < 0:
+                x2 -= x1
+                x1 -= x1
+            if x2 >= mask_image.width:
+                x2 = mask_image.width
+
+        return x1, y1, x2, y2
+
+    def _resize_and_fill(
+        self,
+        image: PIL.Image.Image,
+        width: int,
+        height: int,
+    ) -> PIL.Image.Image:
+        """
+        Resize the image to fit within the specified width and height, maintaining the aspect ratio, and then center the image within the dimensions, filling empty with data from image.
+
+        Args:
+            image: The image to resize.
+            width: The width to resize the image to.
+            height: The height to resize the image to.
+        """
+
+        ratio = width / height
+        src_ratio = image.width / image.height
+
+        src_w = width if ratio < src_ratio else image.width * height // image.height
+        src_h = height if ratio >= src_ratio else image.height * width // image.width
+
+        resized = image.resize((src_w, src_h), resample=PIL_INTERPOLATION["lanczos"])
+        res = Image.new("RGB", (width, height))
+        res.paste(resized, box=(width // 2 - src_w // 2, height // 2 - src_h // 2))
+
+        if ratio < src_ratio:
+            fill_height = height // 2 - src_h // 2
+            if fill_height > 0:
+                res.paste(
+                    resized.resize((width, fill_height), box=(0, 0, width, 0)),
+                    box=(0, 0),
+                )
+                res.paste(
+                    resized.resize(
+                        (width, fill_height),
+                        box=(0, resized.height, width, resized.height),
+                    ),
+                    box=(0, fill_height + src_h),
+                )
+        elif ratio > src_ratio:
+            fill_width = width // 2 - src_w // 2
+            if fill_width > 0:
+                res.paste(
+                    resized.resize((fill_width, height), box=(0, 0, 0, height)),
+                    box=(0, 0),
+                )
+                res.paste(
+                    resized.resize(
+                        (fill_width, height),
+                        box=(resized.width, 0, resized.width, height),
+                    ),
+                    box=(fill_width + src_w, 0),
+                )
+
+        return res
+
+    def _resize_and_crop(
+        self,
+        image: PIL.Image.Image,
+        width: int,
+        height: int,
+    ) -> PIL.Image.Image:
+        """
+        Resize the image to fit within the specified width and height, maintaining the aspect ratio, and then center the image within the dimensions, cropping the excess.
+
+        Args:
+            image: The image to resize.
+            width: The width to resize the image to.
+            height: The height to resize the image to.
+        """
+        ratio = width / height
+        src_ratio = image.width / image.height
+
+        src_w = width if ratio > src_ratio else image.width * height // image.height
+        src_h = height if ratio <= src_ratio else image.height * width // image.width
+
+        resized = image.resize((src_w, src_h), resample=PIL_INTERPOLATION["lanczos"])
+        res = Image.new("RGB", (width, height))
+        res.paste(resized, box=(width // 2 - src_w // 2, height // 2 - src_h // 2))
+        return res
+
+    def resize(
+        self,
+        image: Union[PIL.Image.Image, np.ndarray, torch.Tensor],
+        height: int,
+        width: int,
+        resize_mode: str = "default",  # "defalt", "fill", "crop"
+    ) -> Union[PIL.Image.Image, np.ndarray, torch.Tensor]:
+        """
+        Resize image.
+
+        Args:
+            image (`PIL.Image.Image`, `np.ndarray` or `torch.Tensor`):
+                The image input, can be a PIL image, numpy array or pytorch tensor.
+            height (`int`):
+                The height to resize to.
+            width (`int`):
+                The width to resize to.
+            resize_mode (`str`, *optional*, defaults to `default`):
+                The resize mode to use, can be one of `default` or `fill`. If `default`, will resize the image to fit
+                within the specified width and height, and it may not maintaining the original aspect ratio.
+                If `fill`, will resize the image to fit within the specified width and height, maintaining the aspect ratio, and then center the image
+                within the dimensions, filling empty with data from image.
+                If `crop`, will resize the image to fit within the specified width and height, maintaining the aspect ratio, and then center the image
+                within the dimensions, cropping the excess.
+                Note that resize_mode `fill` and `crop` are only supported for PIL image input.
+
+        Returns:
+            `PIL.Image.Image`, `np.ndarray` or `torch.Tensor`:
+                The resized image.
+        """
+        if resize_mode != "default" and not isinstance(image, PIL.Image.Image):
+            raise ValueError(
+                f"Only PIL image input is supported for resize_mode {resize_mode}"
+            )
+        if isinstance(image, PIL.Image.Image):
+            if resize_mode == "default":
+                image = image.resize(
+                    (width, height), resample=PIL_INTERPOLATION[self.config.resample]
+                )
+            elif resize_mode == "fill":
+                image = self._resize_and_fill(image, width, height)
+            elif resize_mode == "crop":
+                image = self._resize_and_crop(image, width, height)
+            else:
+                raise ValueError(f"resize_mode {resize_mode} is not supported")
+
+        elif isinstance(image, torch.Tensor):
+            image = torch.nn.functional.interpolate(
+                image,
+                size=(height, width),
+            )
+        elif isinstance(image, np.ndarray):
+            image = self.numpy_to_pt(image)
+            image = torch.nn.functional.interpolate(
+                image,
+                size=(height, width),
+            )
+            image = self.pt_to_numpy(image)
+        return image
+
+    def binarize(self, image: PIL.Image.Image) -> PIL.Image.Image:
+        """
+        Create a mask.
+
+        Args:
+            image (`PIL.Image.Image`):
+                The image input, should be a PIL image.
+
+        Returns:
+            `PIL.Image.Image`:
+                The binarized image. Values less than 0.5 are set to 0, values greater than 0.5 are set to 1.
+        """
+        image[image < 0.5] = 0
+        image[image >= 0.5] = 1
+
+        return image
+
+    def get_default_height_width(
+        self,
+        image: Union[PIL.Image.Image, np.ndarray, torch.Tensor],
+        height: Optional[int] = None,
+        width: Optional[int] = None,
+    ) -> Tuple[int, int]:
+        """
+        This function return the height and width that are downscaled to the next integer multiple of
+        `vae_scale_factor`.
+
+        Args:
+            image(`PIL.Image.Image`, `np.ndarray` or `torch.Tensor`):
+                The image input, can be a PIL image, numpy array or pytorch tensor. if it is a numpy array, should have
+                shape `[batch, height, width]` or `[batch, height, width, channel]` if it is a pytorch tensor, should
+                have shape `[batch, channel, height, width]`.
+            height (`int`, *optional*, defaults to `None`):
+                The height in preprocessed image. If `None`, will use the height of `image` input.
+            width (`int`, *optional*`, defaults to `None`):
+                The width in preprocessed. If `None`, will use the width of the `image` input.
+        """
+
+        if height is None:
+            if isinstance(image, PIL.Image.Image):
+                height = image.height
+            elif isinstance(image, torch.Tensor):
+                height = image.shape[2]
+            else:
+                height = image.shape[1]
+
+        if width is None:
+            if isinstance(image, PIL.Image.Image):
+                width = image.width
+            elif isinstance(image, torch.Tensor):
+                width = image.shape[3]
+            else:
+                width = image.shape[2]
+
+        width, height = (
+            x - x % self.config.vae_scale_factor for x in (width, height)
+        )  # resize to integer multiple of vae_scale_factor
+
+        return height, width
+
+    def preprocess(
+        self,
+        image: PipelineImageInput,
+        height: Optional[int] = None,
+        width: Optional[int] = None,
+        resize_mode: str = "default",  # "defalt", "fill", "crop"
+        crops_coords: Optional[Tuple[int, int, int, int]] = None,
+    ) -> torch.Tensor:
+        """
+        Preprocess the image input.
+
+        Args:
+            image (`pipeline_image_input`):
+                The image input, accepted formats are PIL images, NumPy arrays, PyTorch tensors; Also accept list of supported formats.
+            height (`int`, *optional*, defaults to `None`):
+                The height in preprocessed image. If `None`, will use the `get_default_height_width()` to get default height.
+            width (`int`, *optional*`, defaults to `None`):
+                The width in preprocessed. If `None`, will use  get_default_height_width()` to get the default width.
+            resize_mode (`str`, *optional*, defaults to `default`):
+                The resize mode, can be one of `default` or `fill`. If `default`, will resize the image to fit
+                within the specified width and height, and it may not maintaining the original aspect ratio.
+                If `fill`, will resize the image to fit within the specified width and height, maintaining the aspect ratio, and then center the image
+                within the dimensions, filling empty with data from image.
+                If `crop`, will resize the image to fit within the specified width and height, maintaining the aspect ratio, and then center the image
+                within the dimensions, cropping the excess.
+                Note that resize_mode `fill` and `crop` are only supported for PIL image input.
+            crops_coords (`List[Tuple[int, int, int, int]]`, *optional*, defaults to `None`):
+                The crop coordinates for each image in the batch. If `None`, will not crop the image.
+        """
+        supported_formats = (PIL.Image.Image, np.ndarray, torch.Tensor)
+
+        # Expand the missing dimension for 3-dimensional pytorch tensor or numpy array that represents grayscale image
+        if (
+            self.config.do_convert_grayscale
+            and isinstance(image, (torch.Tensor, np.ndarray))
+            and image.ndim == 3
+        ):
+            if isinstance(image, torch.Tensor):
+                # if image is a pytorch tensor could have 2 possible shapes:
+                #    1. batch x height x width: we should insert the channel dimension at position 1
+                #    2. channnel x height x width: we should insert batch dimension at position 0,
+                #       however, since both channel and batch dimension has same size 1, it is same to insert at position 1
+                #    for simplicity, we insert a dimension of size 1 at position 1 for both cases
+                image = image.unsqueeze(1)
+            else:
+                # if it is a numpy array, it could have 2 possible shapes:
+                #   1. batch x height x width: insert channel dimension on last position
+                #   2. height x width x channel: insert batch dimension on first position
+                if image.shape[-1] == 1:
+                    image = np.expand_dims(image, axis=0)
+                else:
+                    image = np.expand_dims(image, axis=-1)
+
+        if isinstance(image, supported_formats):
+            image = [image]
+        elif not (
+            isinstance(image, list)
+            and all(isinstance(i, supported_formats) for i in image)
+        ):
+            raise ValueError(
+                f"Input is in incorrect format: {[type(i) for i in image]}. Currently, we only support {', '.join(supported_formats)}"
+            )
+
+        if isinstance(image[0], PIL.Image.Image):
+            if crops_coords is not None:
+                image = [i.crop(crops_coords) for i in image]
+            if self.config.do_resize:
+                height, width = self.get_default_height_width(image[0], height, width)
+                image = [
+                    self.resize(i, height, width, resize_mode=resize_mode)
+                    for i in image
+                ]
+            if self.config.do_convert_rgb:
+                image = [self.convert_to_rgb(i) for i in image]
+            elif self.config.do_convert_grayscale:
+                image = [self.convert_to_grayscale(i) for i in image]
+            image = self.pil_to_numpy(image)  # to np
+            image = self.numpy_to_pt(image)  # to pt
+
+        elif isinstance(image[0], np.ndarray):
+            image = (
+                np.concatenate(image, axis=0)
+                if image[0].ndim == 4
+                else np.stack(image, axis=0)
+            )
+
+            image = self.numpy_to_pt(image)
+
+            height, width = self.get_default_height_width(image, height, width)
+            if self.config.do_resize:
+                image = self.resize(image, height, width)
+
+        elif isinstance(image[0], torch.Tensor):
+            image = (
+                torch.cat(image, axis=0)
+                if image[0].ndim == 4
+                else torch.stack(image, axis=0)
+            )
+
+            if self.config.do_convert_grayscale and image.ndim == 3:
+                image = image.unsqueeze(1)
+
+            channel = image.shape[1]
+            # don't need any preprocess if the image is latents
+            if channel == 4:
+                return image
+
+            height, width = self.get_default_height_width(image, height, width)
+            if self.config.do_resize:
+                image = self.resize(image, height, width)
+
+        # expected range [0,1], normalize to [-1,1]
+        do_normalize = self.config.do_normalize
+        if do_normalize and image.min() < 0:
+            warnings.warn(
+                "Passing `image` as torch tensor with value range in [-1,1] is deprecated. The expected value range for image tensor is [0,1] "
+                f"when passing as pytorch tensor or numpy Array. You passed `image` with value range [{image.min()},{image.max()}]",
+                FutureWarning,
+            )
+            do_normalize = False
+
+        if do_normalize:
+            image = self.normalize(image)
+
+        if self.config.do_binarize:
+            image = self.binarize(image)
+
+        return image
+
+    def postprocess(
+        self,
+        image: torch.FloatTensor,
+        output_type: str = "pil",
+        do_denormalize: Optional[List[bool]] = None,
+    ) -> Union[PIL.Image.Image, np.ndarray, torch.FloatTensor]:
+        """
+        Postprocess the image output from tensor to `output_type`.
+
+        Args:
+            image (`torch.FloatTensor`):
+                The image input, should be a pytorch tensor with shape `B x C x H x W`.
+            output_type (`str`, *optional*, defaults to `pil`):
+                The output type of the image, can be one of `pil`, `np`, `pt`, `latent`.
+            do_denormalize (`List[bool]`, *optional*, defaults to `None`):
+                Whether to denormalize the image to [0,1]. If `None`, will use the value of `do_normalize` in the
+                `VaeImageProcessor` config.
+
+        Returns:
+            `PIL.Image.Image`, `np.ndarray` or `torch.FloatTensor`:
+                The postprocessed image.
+        """
+        if not isinstance(image, torch.Tensor):
+            raise ValueError(
+                f"Input for postprocessing is in incorrect format: {type(image)}. We only support pytorch tensor"
+            )
+        if output_type not in ["latent", "pt", "np", "pil"]:
+            deprecation_message = (
+                f"the output_type {output_type} is outdated and has been set to `np`. Please make sure to set it to one of these instead: "
+                "`pil`, `np`, `pt`, `latent`"
+            )
+            deprecate(
+                "Unsupported output_type",
+                "1.0.0",
+                deprecation_message,
+                standard_warn=False,
+            )
+            output_type = "np"
+
+        if output_type == "latent":
+            return image
+
+        if do_denormalize is None:
+            do_denormalize = [self.config.do_normalize] * image.shape[0]
+
+        image = torch.stack(
+            [
+                self.denormalize(image[i]) if do_denormalize[i] else image[i]
+                for i in range(image.shape[0])
+            ]
+        )
+
+        if output_type == "pt":
+            return image
+
+        image = self.pt_to_numpy(image)
+
+        if output_type == "np":
+            return image
+
+        if output_type == "pil":
+            return self.numpy_to_pil(image)
+
+    def apply_overlay(
+        self,
+        mask: PIL.Image.Image,
+        init_image: PIL.Image.Image,
+        image: PIL.Image.Image,
+        crop_coords: Optional[Tuple[int, int, int, int]] = None,
+    ) -> PIL.Image.Image:
+        """
+        overlay the inpaint output to the original image
+        """
+
+        image = image.resize(init_image.size)
+        width, height = image.width, image.height
+
+        init_image = self.resize(init_image, width=width, height=height)
+        mask = self.resize(mask, width=width, height=height)
+
+        init_image_masked = PIL.Image.new("RGBa", (width, height))
+        init_image_masked.paste(
+            init_image.convert("RGBA").convert("RGBa"),
+            mask=ImageOps.invert(mask.convert("L")),
+        )
+        init_image_masked = init_image_masked.convert("RGBA")
+
+        if crop_coords is not None:
+            x, y, x2, y2 = crop_coords
+            w = x2 - x
+            h = y2 - y
+            base_image = PIL.Image.new("RGBA", (width, height))
+            image = self.resize(image, height=h, width=w, resize_mode="crop")
+            base_image.paste(image, (x, y))
+            image = base_image.convert("RGB")
+
+        image = image.convert("RGBA")
+        image.alpha_composite(init_image_masked)
+        image = image.convert("RGB")
+
+        return image
+
+
+class VaeImageProcessorLDM3D(VaeImageProcessor):
+    """
+    Image processor for VAE LDM3D.
+
+    Args:
+        do_resize (`bool`, *optional*, defaults to `True`):
+            Whether to downscale the image's (height, width) dimensions to multiples of `vae_scale_factor`.
+        vae_scale_factor (`int`, *optional*, defaults to `8`):
+            VAE scale factor. If `do_resize` is `True`, the image is automatically resized to multiples of this factor.
+        resample (`str`, *optional*, defaults to `lanczos`):
+            Resampling filter to use when resizing the image.
+        do_normalize (`bool`, *optional*, defaults to `True`):
+            Whether to normalize the image to [-1,1].
+    """
+
+    config_name = CONFIG_NAME
+
+    @register_to_config
+    def __init__(
+        self,
+        do_resize: bool = True,
+        vae_scale_factor: int = 8,
+        resample: str = "lanczos",
+        do_normalize: bool = True,
+    ):
+        super().__init__()
+
+    @staticmethod
+    def numpy_to_pil(images: np.ndarray) -> List[PIL.Image.Image]:
+        """
+        Convert a NumPy image or a batch of images to a PIL image.
+        """
+        if images.ndim == 3:
+            images = images[None, ...]
+        images = (images * 255).round().astype("uint8")
+        if images.shape[-1] == 1:
+            # special case for grayscale (single channel) images
+            pil_images = [
+                Image.fromarray(image.squeeze(), mode="L") for image in images
+            ]
+        else:
+            pil_images = [Image.fromarray(image[:, :, :3]) for image in images]
+
+        return pil_images
+
+    @staticmethod
+    def depth_pil_to_numpy(
+        images: Union[List[PIL.Image.Image], PIL.Image.Image]
+    ) -> np.ndarray:
+        """
+        Convert a PIL image or a list of PIL images to NumPy arrays.
+        """
+        if not isinstance(images, list):
+            images = [images]
+
+        images = [
+            np.array(image).astype(np.float32) / (2**16 - 1) for image in images
+        ]
+        images = np.stack(images, axis=0)
+        return images
+
+    @staticmethod
+    def rgblike_to_depthmap(
+        image: Union[np.ndarray, torch.Tensor]
+    ) -> Union[np.ndarray, torch.Tensor]:
+        """
+        Args:
+            image: RGB-like depth image
+
+        Returns: depth map
+
+        """
+        return image[:, :, 1] * 2**8 + image[:, :, 2]
+
+    def numpy_to_depth(self, images: np.ndarray) -> List[PIL.Image.Image]:
+        """
+        Convert a NumPy depth image or a batch of images to a PIL image.
+        """
+        if images.ndim == 3:
+            images = images[None, ...]
+        images_depth = images[:, :, :, 3:]
+        if images.shape[-1] == 6:
+            images_depth = (images_depth * 255).round().astype("uint8")
+            pil_images = [
+                Image.fromarray(self.rgblike_to_depthmap(image_depth), mode="I;16")
+                for image_depth in images_depth
+            ]
+        elif images.shape[-1] == 4:
+            images_depth = (images_depth * 65535.0).astype(np.uint16)
+            pil_images = [
+                Image.fromarray(image_depth, mode="I;16")
+                for image_depth in images_depth
+            ]
+        else:
+            raise Exception("Not supported")
+
+        return pil_images
+
+    def postprocess(
+        self,
+        image: torch.FloatTensor,
+        output_type: str = "pil",
+        do_denormalize: Optional[List[bool]] = None,
+    ) -> Union[PIL.Image.Image, np.ndarray, torch.FloatTensor]:
+        """
+        Postprocess the image output from tensor to `output_type`.
+
+        Args:
+            image (`torch.FloatTensor`):
+                The image input, should be a pytorch tensor with shape `B x C x H x W`.
+            output_type (`str`, *optional*, defaults to `pil`):
+                The output type of the image, can be one of `pil`, `np`, `pt`, `latent`.
+            do_denormalize (`List[bool]`, *optional*, defaults to `None`):
+                Whether to denormalize the image to [0,1]. If `None`, will use the value of `do_normalize` in the
+                `VaeImageProcessor` config.
+
+        Returns:
+            `PIL.Image.Image`, `np.ndarray` or `torch.FloatTensor`:
+                The postprocessed image.
+        """
+        if not isinstance(image, torch.Tensor):
+            raise ValueError(
+                f"Input for postprocessing is in incorrect format: {type(image)}. We only support pytorch tensor"
+            )
+        if output_type not in ["latent", "pt", "np", "pil"]:
+            deprecation_message = (
+                f"the output_type {output_type} is outdated and has been set to `np`. Please make sure to set it to one of these instead: "
+                "`pil`, `np`, `pt`, `latent`"
+            )
+            deprecate(
+                "Unsupported output_type",
+                "1.0.0",
+                deprecation_message,
+                standard_warn=False,
+            )
+            output_type = "np"
+
+        if do_denormalize is None:
+            do_denormalize = [self.config.do_normalize] * image.shape[0]
+
+        image = torch.stack(
+            [
+                self.denormalize(image[i]) if do_denormalize[i] else image[i]
+                for i in range(image.shape[0])
+            ]
+        )
+
+        image = self.pt_to_numpy(image)
+
+        if output_type == "np":
+            if image.shape[-1] == 6:
+                image_depth = np.stack(
+                    [self.rgblike_to_depthmap(im[:, :, 3:]) for im in image], axis=0
+                )
+            else:
+                image_depth = image[:, :, :, 3:]
+            return image[:, :, :, :3], image_depth
+
+        if output_type == "pil":
+            return self.numpy_to_pil(image), self.numpy_to_depth(image)
+        else:
+            raise Exception(f"This type {output_type} is not supported")
+
+    def preprocess(
+        self,
+        rgb: Union[torch.FloatTensor, PIL.Image.Image, np.ndarray],
+        depth: Union[torch.FloatTensor, PIL.Image.Image, np.ndarray],
+        height: Optional[int] = None,
+        width: Optional[int] = None,
+        target_res: Optional[int] = None,
+    ) -> torch.Tensor:
+        """
+        Preprocess the image input. Accepted formats are PIL images, NumPy arrays or PyTorch tensors.
+        """
+        supported_formats = (PIL.Image.Image, np.ndarray, torch.Tensor)
+
+        # Expand the missing dimension for 3-dimensional pytorch tensor or numpy array that represents grayscale image
+        if (
+            self.config.do_convert_grayscale
+            and isinstance(rgb, (torch.Tensor, np.ndarray))
+            and rgb.ndim == 3
+        ):
+            raise Exception("This is not yet supported")
+
+        if isinstance(rgb, supported_formats):
+            rgb = [rgb]
+            depth = [depth]
+        elif not (
+            isinstance(rgb, list) and all(isinstance(i, supported_formats) for i in rgb)
+        ):
+            raise ValueError(
+                f"Input is in incorrect format: {[type(i) for i in rgb]}. Currently, we only support {', '.join(supported_formats)}"
+            )
+
+        if isinstance(rgb[0], PIL.Image.Image):
+            if self.config.do_convert_rgb:
+                raise Exception("This is not yet supported")
+                # rgb = [self.convert_to_rgb(i) for i in rgb]
+                # depth = [self.convert_to_depth(i) for i in depth]  #TODO define convert_to_depth
+            if self.config.do_resize or target_res:
+                height, width = (
+                    self.get_default_height_width(rgb[0], height, width)
+                    if not target_res
+                    else target_res
+                )
+                rgb = [self.resize(i, height, width) for i in rgb]
+                depth = [self.resize(i, height, width) for i in depth]
+            rgb = self.pil_to_numpy(rgb)  # to np
+            rgb = self.numpy_to_pt(rgb)  # to pt
+
+            depth = self.depth_pil_to_numpy(depth)  # to np
+            depth = self.numpy_to_pt(depth)  # to pt
+
+        elif isinstance(rgb[0], np.ndarray):
+            rgb = (
+                np.concatenate(rgb, axis=0)
+                if rgb[0].ndim == 4
+                else np.stack(rgb, axis=0)
+            )
+            rgb = self.numpy_to_pt(rgb)
+            height, width = self.get_default_height_width(rgb, height, width)
+            if self.config.do_resize:
+                rgb = self.resize(rgb, height, width)
+
+            depth = (
+                np.concatenate(depth, axis=0)
+                if rgb[0].ndim == 4
+                else np.stack(depth, axis=0)
+            )
+            depth = self.numpy_to_pt(depth)
+            height, width = self.get_default_height_width(depth, height, width)
+            if self.config.do_resize:
+                depth = self.resize(depth, height, width)
+
+        elif isinstance(rgb[0], torch.Tensor):
+            raise Exception("This is not yet supported")
+            # rgb = torch.cat(rgb, axis=0) if rgb[0].ndim == 4 else torch.stack(rgb, axis=0)
+
+            # if self.config.do_convert_grayscale and rgb.ndim == 3:
+            #     rgb = rgb.unsqueeze(1)
+
+            # channel = rgb.shape[1]
+
+            # height, width = self.get_default_height_width(rgb, height, width)
+            # if self.config.do_resize:
+            #     rgb = self.resize(rgb, height, width)
+
+            # depth = torch.cat(depth, axis=0) if depth[0].ndim == 4 else torch.stack(depth, axis=0)
+
+            # if self.config.do_convert_grayscale and depth.ndim == 3:
+            #     depth = depth.unsqueeze(1)
+
+            # channel = depth.shape[1]
+            # # don't need any preprocess if the image is latents
+            # if depth == 4:
+            #     return rgb, depth
+
+            # height, width = self.get_default_height_width(depth, height, width)
+            # if self.config.do_resize:
+            #     depth = self.resize(depth, height, width)
+        # expected range [0,1], normalize to [-1,1]
+        do_normalize = self.config.do_normalize
+        if rgb.min() < 0 and do_normalize:
+            warnings.warn(
+                "Passing `image` as torch tensor with value range in [-1,1] is deprecated. The expected value range for image tensor is [0,1] "
+                f"when passing as pytorch tensor or numpy Array. You passed `image` with value range [{rgb.min()},{rgb.max()}]",
+                FutureWarning,
+            )
+            do_normalize = False
+
+        if do_normalize:
+            rgb = self.normalize(rgb)
+            depth = self.normalize(depth)
+
+        if self.config.do_binarize:
+            rgb = self.binarize(rgb)
+            depth = self.binarize(depth)
+
+        return rgb, depth
diff --git a/internals/pipelines/inpainter.py b/internals/pipelines/inpainter.py
index af72c09a1292dc9169215e120dac5041216b45d2..378d62234743f1d5317c7fc8ce2556ac1ac2174e 100644
--- a/internals/pipelines/inpainter.py
+++ b/internals/pipelines/inpainter.py
@@ -1,18 +1,27 @@
 from typing import List, Union
 
 import torch
-from diffusers import StableDiffusionInpaintPipeline, StableDiffusionXLInpaintPipeline
+from diffusers import (
+    StableDiffusionInpaintPipeline,
+    StableDiffusionXLInpaintPipeline,
+    UNet2DConditionModel,
+)
 
 from internals.pipelines.commons import AbstractPipeline
+from internals.pipelines.high_res import HighRes
+from internals.pipelines.inpaint_imageprocessor import VaeImageProcessor
+from internals.util import get_generators
 from internals.util.cache import clear_cuda_and_gc
 from internals.util.commons import disable_safety_checker, download_image
 from internals.util.config import (
+    get_base_inpaint_model_revision,
     get_base_inpaint_model_variant,
     get_hf_cache_dir,
     get_hf_token,
     get_inpaint_model_path,
     get_is_sdxl,
     get_model_dir,
+    get_num_return_sequences,
 )
 
 
@@ -32,13 +41,27 @@ class InPainter(AbstractPipeline):
             return
 
         if get_is_sdxl():
-            self.pipe = StableDiffusionXLInpaintPipeline.from_pretrained(
+            # only take UNet from the repo
+            unet = UNet2DConditionModel.from_pretrained(
                 get_inpaint_model_path(),
                 torch_dtype=torch.float16,
                 cache_dir=get_hf_cache_dir(),
                 token=get_hf_token(),
+                subfolder="unet",
                 variant=get_base_inpaint_model_variant(),
+                revision=get_base_inpaint_model_revision(),
             ).to("cuda")
+            kwargs = {**self.__base.pipe.components, "unet": unet}
+            self.pipe = StableDiffusionXLInpaintPipeline(**kwargs).to("cuda")
+            self.pipe.mask_processor = VaeImageProcessor(
+                vae_scale_factor=self.pipe.vae_scale_factor,
+                do_normalize=False,
+                do_binarize=True,
+                do_convert_grayscale=True,
+            )
+            self.pipe.image_processor = VaeImageProcessor(
+                vae_scale_factor=self.pipe.vae_scale_factor
+            )
         else:
             self.pipe = StableDiffusionInpaintPipeline.from_pretrained(
                 get_inpaint_model_path(),
@@ -90,11 +113,18 @@ class InPainter(AbstractPipeline):
         num_inference_steps: int,
         **kwargs,
     ):
-        torch.manual_seed(seed)
+        generator = get_generators(seed, get_num_return_sequences())
 
         input_img = download_image(image_url).resize((width, height))
         mask_img = download_image(mask_image_url).resize((width, height))
 
+        if get_is_sdxl():
+            width, height = HighRes.find_closest_sdxl_aspect_ratio(width, height)
+            mask_img = self.pipe.mask_processor.blur(mask_img, blur_factor=33)
+
+            kwargs["strength"] = 0.999
+            kwargs["padding_mask_crop"] = 1000
+
         kwargs = {
             "prompt": prompt,
             "image": input_img,
@@ -104,6 +134,7 @@ class InPainter(AbstractPipeline):
             "negative_prompt": negative_prompt,
             "num_inference_steps": num_inference_steps,
             "strength": 1.0,
+            "generator": generator,
             **kwargs,
         }
-        return self.pipe.__call__(**kwargs).images
+        return self.pipe.__call__(**kwargs).images, mask_img
diff --git a/internals/pipelines/prompt_modifier.py b/internals/pipelines/prompt_modifier.py
index 9892786086d79a2798d3816075e4ec9b9f6faece..22fe48911513f7e4497a6130de4d6f4d906376dc 100644
--- a/internals/pipelines/prompt_modifier.py
+++ b/internals/pipelines/prompt_modifier.py
@@ -2,6 +2,8 @@ from typing import List, Optional
 
 from transformers import AutoModelForCausalLM, AutoTokenizer, GenerationConfig
 
+from internals.util.config import get_num_return_sequences
+
 
 class PromptModifier:
     __loaded = False
@@ -38,7 +40,7 @@ class PromptModifier:
             do_sample=False,
             max_new_tokens=75,
             num_beams=4,
-            num_return_sequences=num_of_sequences,
+            num_return_sequences=get_num_return_sequences(),
             eos_token_id=eos_id,
             pad_token_id=eos_id,
             length_penalty=-1.0,
diff --git a/internals/pipelines/realtime_draw.py b/internals/pipelines/realtime_draw.py
index a5c36a9a8e9cdaa37fa5e075cba5f3e931e5d25b..1d58220b2b738dcb3fd09b8888fc61f071195346 100644
--- a/internals/pipelines/realtime_draw.py
+++ b/internals/pipelines/realtime_draw.py
@@ -9,7 +9,13 @@ from internals.pipelines.commons import AbstractPipeline
 from internals.pipelines.controlnets import ControlNet
 from internals.pipelines.high_res import HighRes
 from internals.pipelines.sdxl_llite_pipeline import SDXLLLiteImg2ImgPipeline
-from internals.util.config import get_base_dimension, get_hf_cache_dir, get_is_sdxl
+from internals.util import get_generators
+from internals.util.config import (
+    get_base_dimension,
+    get_hf_cache_dir,
+    get_is_sdxl,
+    get_num_return_sequences,
+)
 
 
 class RealtimeDraw(AbstractPipeline):
@@ -60,7 +66,7 @@ class RealtimeDraw(AbstractPipeline):
         if get_is_sdxl():
             raise Exception("SDXL is not supported for this method")
 
-        torch.manual_seed(seed)
+        generator = get_generators(seed, get_num_return_sequences())
 
         image = ImageUtil.resize_image(image, 512)
 
@@ -70,6 +76,7 @@ class RealtimeDraw(AbstractPipeline):
             prompt=prompt,
             num_inference_steps=15,
             negative_prompt=negative_prompt,
+            generator=generator,
             guidance_scale=10,
             strength=0.8,
         ).images[0]
@@ -84,7 +91,7 @@ class RealtimeDraw(AbstractPipeline):
         image: Optional[Image.Image] = None,
         image2: Optional[Image.Image] = None,
     ):
-        torch.manual_seed(seed)
+        generator = get_generators(seed, get_num_return_sequences())
 
         b_dimen = get_base_dimension()
 
@@ -104,6 +111,8 @@ class RealtimeDraw(AbstractPipeline):
             size = HighRes.find_closest_sdxl_aspect_ratio(image.size[0], image.size[1])
             image = image.resize(size)
 
+            torch.manual_seed(seed)
+
             images = self.pipe.__call__(
                 image=image,
                 condition_image=image,
@@ -129,6 +138,7 @@ class RealtimeDraw(AbstractPipeline):
                 num_inference_steps=15,
                 negative_prompt=negative_prompt,
                 guidance_scale=10,
+                generator=generator,
                 strength=0.9,
                 width=image.size[0],
                 height=image.size[1],
diff --git a/internals/pipelines/remove_background.py b/internals/pipelines/remove_background.py
index e7c35e8a4d056291e9c121247298805e3dee907b..5cade8fc757d39feeeb08fe6c92e76fc1c88341e 100644
--- a/internals/pipelines/remove_background.py
+++ b/internals/pipelines/remove_background.py
@@ -1,20 +1,22 @@
 import io
 from pathlib import Path
 from typing import Union
-import numpy as np
-import cv2
 
+import cv2
+import huggingface_hub
+import numpy as np
+import onnxruntime as rt
 import torch
 import torch.nn.functional as F
+from briarmbg import BriaRMBG  # pyright: ignore
 from PIL import Image
 from rembg import remove
-from internals.data.task import ModelType
+from torchvision.transforms.functional import normalize
 
 import internals.util.image as ImageUtil
 from carvekit.api.high import HiInterface
+from internals.data.task import ModelType
 from internals.util.commons import download_image, read_url
-import onnxruntime as rt
-import huggingface_hub
 
 
 class RemoveBackground:
@@ -94,3 +96,51 @@ class RemoveBackgroundV2:
         img = np.concatenate([img, mask], axis=2, dtype=np.uint8)
         mask = mask.repeat(3, axis=2)
         return mask, img
+
+
+class RemoveBackgroundV3:
+    def __init__(self):
+        net = BriaRMBG.from_pretrained("briaai/RMBG-1.4")
+        device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
+        net.to(device)
+        self.net = net
+
+    def remove(self, image: Union[str, Image.Image]) -> Image.Image:
+        if type(image) is str:
+            image = download_image(image, mode="RGBA")
+
+        orig_image = image
+        w, h = orig_im_size = orig_image.size
+        image = self.__resize_image(orig_image)
+        im_np = np.array(image)
+        im_tensor = torch.tensor(im_np, dtype=torch.float32).permute(2, 0, 1)
+        im_tensor = torch.unsqueeze(im_tensor, 0)
+        im_tensor = torch.divide(im_tensor, 255.0)
+        im_tensor = normalize(im_tensor, [0.5, 0.5, 0.5], [1.0, 1.0, 1.0])
+        if torch.cuda.is_available():
+            im_tensor = im_tensor.cuda()
+
+        # inference
+        result = self.net(im_tensor)
+        # post process
+        result = torch.squeeze(
+            F.interpolate(result[0][0], size=(h, w), mode="bilinear"), 0
+        )
+        ma = torch.max(result)
+        mi = torch.min(result)
+        result = (result - mi) / (ma - mi)
+        # image to pil
+        im_array = (result * 255).cpu().data.numpy().astype(np.uint8)
+        pil_im = Image.fromarray(np.squeeze(im_array))
+        # paste the mask on the original image
+        new_im = Image.new("RGBA", pil_im.size, (0, 0, 0, 0))
+        new_im.paste(orig_image, mask=pil_im)
+        # new_orig_image = orig_image.convert('RGBA')
+
+        return new_im
+
+    def __resize_image(self, image):
+        image = image.convert("RGB")
+        model_input_size = (1024, 1024)
+        image = image.resize(model_input_size, Image.BILINEAR)
+        return image
diff --git a/internals/pipelines/replace_background.py b/internals/pipelines/replace_background.py
index ae314716065fcac042fcda49938764ec9ad4e4b5..8e9239bc6d370e64516327ece670d6296f5e97ed 100644
--- a/internals/pipelines/replace_background.py
+++ b/internals/pipelines/replace_background.py
@@ -16,11 +16,12 @@ import internals.util.image as ImageUtil
 from internals.data.result import Result
 from internals.data.task import ModelType
 from internals.pipelines.commons import AbstractPipeline
-from internals.pipelines.controlnets import ControlNet
+from internals.pipelines.controlnets import ControlNet, load_network_model_by_key
 from internals.pipelines.high_res import HighRes
 from internals.pipelines.inpainter import InPainter
 from internals.pipelines.remove_background import RemoveBackgroundV2
 from internals.pipelines.upscaler import Upscaler
+from internals.util import get_generators
 from internals.util.cache import clear_cuda_and_gc
 from internals.util.commons import download_image
 from internals.util.config import (
@@ -28,6 +29,7 @@ from internals.util.config import (
     get_hf_token,
     get_inpaint_model_path,
     get_model_dir,
+    get_num_return_sequences,
 )
 
 
@@ -43,11 +45,9 @@ class ReplaceBackground(AbstractPipeline):
     ):
         if self.__loaded:
             return
-        controlnet_model = ControlNetModel.from_pretrained(
-            "lllyasviel/control_v11p_sd15_canny",
-            torch_dtype=torch.float16,
-            cache_dir=get_hf_cache_dir(),
-        ).to("cuda")
+        controlnet_model = load_network_model_by_key(
+            "lllyasviel/control_v11p_sd15_canny", "controlnet"
+        )
         if base:
             pipe = StableDiffusionControlNetPipeline(
                 **base.pipe.components,
@@ -109,8 +109,7 @@ class ReplaceBackground(AbstractPipeline):
         if type(image) is str:
             image = download_image(image)
 
-        torch.manual_seed(seed)
-        torch.cuda.manual_seed(seed)
+        generator = get_generators(seed, get_num_return_sequences())
 
         image = image.convert("RGB")
         if max(image.size) > 1024:
@@ -148,6 +147,7 @@ class ReplaceBackground(AbstractPipeline):
             guidance_scale=9,
             height=height,
             num_inference_steps=steps,
+            generator=generator,
             width=width,
         )
         result = Result.from_result(result)
diff --git a/internals/pipelines/safety_checker.py b/internals/pipelines/safety_checker.py
index 562eb0bfcd930230985c57a05c08cb81d3cddab1..844c63d76cd9f9dcf70db4732d7d49e27f1001c7 100644
--- a/internals/pipelines/safety_checker.py
+++ b/internals/pipelines/safety_checker.py
@@ -31,10 +31,11 @@ class SafetyChecker:
         self.__loaded = True
 
     def apply(self, pipeline: AbstractPipeline):
-        model = self.model if not get_nsfw_access() else None
-        if model:
+        if not get_nsfw_access():
             self.load()
 
+        model = self.model if not get_nsfw_access() else None
+
         if not pipeline:
             return
         if hasattr(pipeline, "pipe"):
diff --git a/internals/pipelines/sdxl_llite_pipeline.py b/internals/pipelines/sdxl_llite_pipeline.py
index 9c0baa52a460fad76100ca2d01d85ad2371727de..5033271ab80a20b0bf5eb3e9521f5a4240933b37 100644
--- a/internals/pipelines/sdxl_llite_pipeline.py
+++ b/internals/pipelines/sdxl_llite_pipeline.py
@@ -1251,6 +1251,8 @@ class PipelineLike:
 
 
 class SDXLLLiteImg2ImgPipeline:
+    from diffusers import UNet2DConditionModel
+
     def __init__(self):
         self.SCHEDULER_LINEAR_START = 0.00085
         self.SCHEDULER_LINEAR_END = 0.0120
@@ -1261,7 +1263,7 @@ class SDXLLLiteImg2ImgPipeline:
 
     def replace_unet_modules(
         self,
-        unet: diffusers.models.unet_2d_condition.UNet2DConditionModel,
+        unet: UNet2DConditionModel,
         mem_eff_attn,
         xformers,
         sdpa,
diff --git a/internals/pipelines/sdxl_tile_upscale.py b/internals/pipelines/sdxl_tile_upscale.py
index 038065830b34ea9a681307e85c90efc2a4ba5a9a..ee2c5d7080ff18246a04f31d2e4055ed51a91a11 100644
--- a/internals/pipelines/sdxl_tile_upscale.py
+++ b/internals/pipelines/sdxl_tile_upscale.py
@@ -4,8 +4,10 @@ from PIL import Image
 from torchvision import transforms
 
 import internals.util.image as ImageUtils
+import internals.util.image as ImageUtil
 from carvekit.api import high
 from internals.data.result import Result
+from internals.data.task import TaskType
 from internals.pipelines.commons import AbstractPipeline, Text2Img
 from internals.pipelines.controlnets import ControlNet
 from internals.pipelines.demofusion_sdxl import DemoFusionSDXLControlNetPipeline
@@ -19,18 +21,16 @@ controlnet = ControlNet()
 
 class SDXLTileUpscaler(AbstractPipeline):
     __loaded = False
+    __current_process_mode = None
 
     def create(self, high_res: HighRes, pipeline: Text2Img, model_id: int):
         if self.__loaded:
             return
         # temporal hack for upscale model till multicontrolnet support is added
-        model = (
-            "thibaud/controlnet-openpose-sdxl-1.0"
-            if int(model_id) == 2000293
-            else "diffusers/controlnet-canny-sdxl-1.0"
-        )
 
-        controlnet = ControlNetModel.from_pretrained(model, torch_dtype=torch.float16)
+        controlnet = ControlNetModel.from_pretrained(
+            "diffusers/controlnet-canny-sdxl-1.0", torch_dtype=torch.float16
+        )
         pipe = DemoFusionSDXLControlNetPipeline(
             **pipeline.pipe.components, controlnet=controlnet
         )
@@ -43,6 +43,7 @@ class SDXLTileUpscaler(AbstractPipeline):
 
         self.pipe = pipe
 
+        self.__current_process_mode = TaskType.CANNY.name
         self.__loaded = True
 
     def unload(self):
@@ -52,6 +53,26 @@ class SDXLTileUpscaler(AbstractPipeline):
 
         clear_cuda_and_gc()
 
+    def __reload_controlnet(self, process_mode: str):
+        if self.__current_process_mode == process_mode:
+            return
+
+        model = (
+            "thibaud/controlnet-openpose-sdxl-1.0"
+            if process_mode == TaskType.POSE.name
+            else "diffusers/controlnet-canny-sdxl-1.0"
+        )
+        controlnet = ControlNetModel.from_pretrained(
+            model, torch_dtype=torch.float16
+        ).to("cuda")
+
+        if hasattr(self, "pipe"):
+            self.pipe.controlnet = controlnet
+
+        self.__current_process_mode = process_mode
+
+        clear_cuda_and_gc()
+
     def process(
         self,
         prompt: str,
@@ -61,21 +82,36 @@ class SDXLTileUpscaler(AbstractPipeline):
         width: int,
         height: int,
         model_id: int,
+        seed: int,
+        process_mode: str,
     ):
-        if int(model_id) == 2000293:
+        generator = torch.manual_seed(seed)
+
+        self.__reload_controlnet(process_mode)
+
+        if process_mode == TaskType.POSE.name:
+            print("Running POSE")
             condition_image = controlnet.detect_pose(imageUrl)
         else:
+            print("Running CANNY")
             condition_image = download_image(imageUrl)
             condition_image = ControlNet.canny_detect_edge(condition_image)
-        img = download_image(imageUrl).resize((width, height))
+        width, height = HighRes.find_closest_sdxl_aspect_ratio(width, height)
 
-        img = ImageUtils.resize_image(img, get_base_dimension())
+        img = download_image(imageUrl).resize((width, height))
         condition_image = condition_image.resize(img.size)
 
         img2 = self.__resize_for_condition_image(img, resize_dimension)
 
+        img = self.pad_image(img)
         image_lr = self.load_and_process_image(img)
-        print("img", img2.size, img.size)
+
+        out_img = self.pad_image(img2)
+        condition_image = self.pad_image(condition_image)
+
+        print("img", img.size)
+        print("img2", img2.size)
+        print("condition", condition_image.size)
         if int(model_id) == 2000173:
             kwargs = {
                 "prompt": prompt,
@@ -83,6 +119,7 @@ class SDXLTileUpscaler(AbstractPipeline):
                 "image": img2,
                 "strength": 0.3,
                 "num_inference_steps": 30,
+                "generator": generator,
             }
             images = self.high_res.pipe.__call__(**kwargs).images
         else:
@@ -90,20 +127,24 @@ class SDXLTileUpscaler(AbstractPipeline):
                 image_lr=image_lr,
                 prompt=prompt,
                 condition_image=condition_image,
-                negative_prompt="blurry, ugly, duplicate, poorly drawn, deformed, mosaic",
+                negative_prompt="blurry, ugly, duplicate, poorly drawn, deformed, mosaic, "
+                + negative_prompt,
                 guidance_scale=11,
                 sigma=0.8,
                 num_inference_steps=24,
-                width=img2.size[0],
-                height=img2.size[1],
+                controlnet_conditioning_scale=0.5,
+                generator=generator,
+                width=out_img.size[0],
+                height=out_img.size[1],
             )
             images = images[::-1]
+            iv = ImageUtil.resize_image(img2, images[0].size[0])
+            images = [self.unpad_image(images[0], iv.size)]
         return images, False
 
     def load_and_process_image(self, pil_image):
         transform = transforms.Compose(
             [
-                transforms.Resize((1024, 1024)),
                 transforms.ToTensor(),
                 transforms.Normalize(mean=[0.5, 0.5, 0.5], std=[0.5, 0.5, 0.5]),
             ]
@@ -113,6 +154,36 @@ class SDXLTileUpscaler(AbstractPipeline):
         image = image.to("cuda")
         return image
 
+    def pad_image(self, image):
+        w, h = image.size
+        if w == h:
+            return image
+        elif w > h:
+            new_image = Image.new(image.mode, (w, w), (0, 0, 0))
+            pad_w = 0
+            pad_h = (w - h) // 2
+            new_image.paste(image, (0, pad_h))
+            return new_image
+        else:
+            new_image = Image.new(image.mode, (h, h), (0, 0, 0))
+            pad_w = (h - w) // 2
+            pad_h = 0
+            new_image.paste(image, (pad_w, 0))
+            return new_image
+
+    def unpad_image(self, padded_image, original_size):
+        w, h = original_size
+        if w == h:
+            return padded_image
+        elif w > h:
+            pad_h = (w - h) // 2
+            unpadded_image = padded_image.crop((0, pad_h, w, h + pad_h))
+            return unpadded_image
+        else:
+            pad_w = (h - w) // 2
+            unpadded_image = padded_image.crop((pad_w, 0, w + pad_w, h))
+            return unpadded_image
+
     def __resize_for_condition_image(self, image: Image.Image, resolution: int):
         input_image = image.convert("RGB")
         W, H = input_image.size
diff --git a/internals/pipelines/upscaler.py b/internals/pipelines/upscaler.py
index 5c9b5dee2611c127d68e98e27a507f621494c698..6b11dbbea3bf563b59ef18e459c882a0aee55f61 100644
--- a/internals/pipelines/upscaler.py
+++ b/internals/pipelines/upscaler.py
@@ -1,7 +1,8 @@
+import io
 import math
 import os
 from pathlib import Path
-from typing import Union
+from typing import Optional, Union
 
 import cv2
 import numpy as np
@@ -10,7 +11,7 @@ from basicsr.archs.srvgg_arch import SRVGGNetCompact
 from basicsr.utils.download_util import load_file_from_url
 from gfpgan import GFPGANer
 from PIL import Image
-from realesrgan import RealESRGANer
+from realesrgan import RealESRGANer  # pyright: ignore
 
 import internals.util.image as ImageUtil
 from internals.util.commons import download_image
@@ -55,8 +56,12 @@ class Upscaler:
         width: int,
         height: int,
         face_enhance: bool,
-        resize_dimension: int,
+        resize_dimension: Optional[int] = None,
     ) -> bytes:
+        "if resize dimension is not provided, use the smaller of width and height"
+
+        self.load()
+
         model = SRVGGNetCompact(
             num_in_ch=3,
             num_out_ch=3,
@@ -67,7 +72,7 @@ class Upscaler:
         )
         return self.__internal_upscale(
             image,
-            resize_dimension,
+            resize_dimension,  # type: ignore
             face_enhance,
             width,
             height,
@@ -83,6 +88,10 @@ class Upscaler:
         face_enhance: bool,
         resize_dimension: int,
     ) -> bytes:
+        "if resize dimension is not provided, use the smaller of width and height"
+
+        self.load()
+
         model = RRDBNet(
             num_in_ch=3,
             num_out_ch=3,
@@ -124,18 +133,22 @@ class Upscaler:
         model,
     ) -> bytes:
         if type(image) is str:
-            image = download_image(image)
+            image = download_image(image, mode="RGBA")
 
         w, h = image.size
-        if max(w, h) > 1024:
-            image = ImageUtil.resize_image(image, dimension=1024)
+        # if max(w, h) > 1024:
+        #     image = ImageUtil.resize_image(image, dimension=1024)
 
         in_path = str(Path.home() / ".cache" / "input_upscale.png")
         image.save(in_path)
         input_image = cv2.imread(in_path, cv2.IMREAD_UNCHANGED)
-        dimension = min(input_image.shape[0], input_image.shape[1])
+        dimension = max(input_image.shape[0], input_image.shape[1])
+        if not resize_dimension:
+            resize_dimension = max(width, height)
         scale = max(math.floor(resize_dimension / dimension), 2)
 
+        print("Upscaling by: ", scale)
+
         os.chdir(str(Path.home() / ".cache"))
         if scale == 4:
             print("Using 4x-Ultrasharp")
@@ -174,3 +187,7 @@ class Upscaler:
         cv2.imwrite("out.png", output)
         out_bytes = cv2.imencode(".png", output)[1].tobytes()
         return out_bytes
+
+    @staticmethod
+    def to_pil(buffer: bytes, mode="RGB") -> Image.Image:
+        return Image.open(io.BytesIO(buffer)).convert(mode)
diff --git a/internals/util/__init__.py b/internals/util/__init__.py
index f5bfce6542b96760057d85ee2db19848f6d508c5..d8e560ca89cd708639fd563d26d3ed623b8d5831 100644
--- a/internals/util/__init__.py
+++ b/internals/util/__init__.py
@@ -1,7 +1,13 @@
 import os
 
+import torch
+
 from internals.util.config import get_root_dir
 
 
 def getcwd():
     return get_root_dir()
+
+
+def get_generators(seed, num_generators=1):
+    return [torch.Generator().manual_seed(seed + i) for i in range(num_generators)]
diff --git a/internals/util/cache.py b/internals/util/cache.py
index ca2f85040ba8eca5d4807dbe8806f9302dc0fe5b..cf9ec942262bf3d2fdea151d5ee0c25c72b1ef3d 100644
--- a/internals/util/cache.py
+++ b/internals/util/cache.py
@@ -1,5 +1,6 @@
 import gc
 import os
+
 import psutil
 import torch
 
@@ -7,6 +8,7 @@ import torch
 def print_memory_usage():
     process = psutil.Process(os.getpid())
     print(f"Memory usage: {process.memory_info().rss / 1024 ** 2:2f} MB")
+    print(f"GPU usage: {torch.cuda.memory_allocated() / 1024 ** 2:2f} MB")
 
 
 def clear_cuda_and_gc():
diff --git a/internals/util/commons.py b/internals/util/commons.py
index 823426599ee71e03f43c541a6c9e533d85d69da3..124967d6d967c9e10d0d72c326842f272d65166c 100644
--- a/internals/util/commons.py
+++ b/internals/util/commons.py
@@ -11,7 +11,7 @@ from typing import Any, Optional, Union
 import boto3
 import requests
 
-from internals.util.config import api_endpoint, api_headers
+from internals.util.config import api_endpoint, api_headers, elb_endpoint
 
 s3 = boto3.client("s3")
 import io
@@ -103,7 +103,7 @@ def upload_images(images, processName: str, taskId: str):
         img_io.seek(0)
         key = "crecoAI/{}{}_{}.png".format(taskId, processName, i)
         res = requests.post(
-            api_endpoint()
+            elb_endpoint()
             + "/autodraft-content/v1.0/upload/crecoai-assets-2?fileName="
             + "{}{}_{}.png".format(taskId, processName, i),
             headers=api_headers(),
@@ -129,12 +129,12 @@ def upload_image(image: Union[Image.Image, BytesIO], out_path):
 
     image.seek(0)
     print(
-        api_endpoint()
+        elb_endpoint()
         + "/autodraft-content/v1.0/upload/crecoai-assets-2?fileName="
         + str(out_path).replace("crecoAI/", ""),
     )
     res = requests.post(
-        api_endpoint()
+        elb_endpoint()
         + "/autodraft-content/v1.0/upload/crecoai-assets-2?fileName="
         + str(out_path).replace("crecoAI/", ""),
         headers=api_headers(),
diff --git a/internals/util/config.py b/internals/util/config.py
index bf5773da130db8579d38a6a5a0e40bf4212c97a5..9d1083dbbfd7b2cf4560162a40220c3c7230bf75 100644
--- a/internals/util/config.py
+++ b/internals/util/config.py
@@ -13,7 +13,7 @@ access_token = ""
 root_dir = ""
 model_config = None
 hf_token = base64.b64decode(
-    b"aGZfVFZCTHNUam1tT3d6T0h1dlVZWkhEbEZ4WVdOSUdGamVCbA=="
+    b"aGZfaXRvVVJzTmN1RHZab1hXZ3hIeFRRRGdvSHdrQ2VNUldGbA=="
 ).decode()
 hf_cache_dir = "/tmp/hf_hub"
 
@@ -46,7 +46,7 @@ def set_model_config(config: ModelConfig):
 
 def set_configs_from_task(task: Task):
     global env, nsfw_threshold, nsfw_access, access_token, base_dimension, num_return_sequences
-    name = task.get_queue_name()
+    name = task.get_environment()
     if name.startswith("gamma"):
         env = "gamma"
     else:
@@ -120,14 +120,25 @@ def get_base_model_variant():
     return model_config.base_model_variant  # pyright: ignore
 
 
+def get_base_model_revision():
+    global model_config
+    return model_config.base_model_revision  # pyright: ignore
+
+
 def get_base_inpaint_model_variant():
     global model_config
     return model_config.base_inpaint_model_variant  # pyright: ignore
 
 
+def get_base_inpaint_model_revision():
+    global model_config
+    return model_config.base_inpaint_model_revision  # pyright: ignore
+
+
 def api_headers():
     return {
         "Access-Token": access_token,
+        "Host": "api.autodraft.in" if env == "prod" else "gamma-api.autodraft.in",
     }
 
 
@@ -138,8 +149,11 @@ def api_endpoint():
         return "https://gamma-api.autodraft.in"
 
 
-def comic_url():
+def elb_endpoint():
+    # We use the ELB endpoint for uploading images since
+    # cloudflare has a hard limit of 100mb when the
+    # DNS is proxied
     if env == "prod":
-        return "http://internal-k8s-prod-internal-bb9c57a6bb-1524739074.ap-south-1.elb.amazonaws.com:80"
+        return "http://k8s-prod-ingresse-8ba91151af-2105029163.ap-south-1.elb.amazonaws.com"
     else:
-        return "http://internal-k8s-gamma-internal-ea8e32da94-1997933257.ap-south-1.elb.amazonaws.com:80"
+        return "http://k8s-gamma-ingresse-fc1051bc41-1227070426.ap-south-1.elb.amazonaws.com"
diff --git a/internals/util/failure_hander.py b/internals/util/failure_hander.py
index 8bdfa2660675b41b0d32ffd8c93c90562a6590a1..293f5707b1f81b7d81d56f9e6137ce38016f38a4 100644
--- a/internals/util/failure_hander.py
+++ b/internals/util/failure_hander.py
@@ -16,10 +16,13 @@ class FailureHandler:
         path = FailureHandler.__task_path
         path.parent.mkdir(parents=True, exist_ok=True)
         if path.exists():
-            task = Task(json.loads(path.read_text()))
-            set_configs_from_task(task)
-            # Slack().error_alert(task, Exception("CATASTROPHIC FAILURE"))
-            updateSource(task.get_sourceId(), task.get_userId(), "FAILED")
+            try:
+                task = Task(json.loads(path.read_text()))
+                set_configs_from_task(task)
+                # Slack().error_alert(task, Exception("CATASTROPHIC FAILURE"))
+                updateSource(task.get_sourceId(), task.get_userId(), "FAILED")
+            except Exception as e:
+                print("Failed to handle task", e)
             os.remove(path)
 
     @staticmethod
diff --git a/internals/util/image.py b/internals/util/image.py
index cba7712eec8e93f14807fb34f653aa99ac04640d..2381d8542861dd62617c87adcc6ad5d4dcfc5406 100644
--- a/internals/util/image.py
+++ b/internals/util/image.py
@@ -48,3 +48,21 @@ def padd_image(image: Image.Image, to_width: int, to_height: int) -> Image.Image
     img = Image.new("RGBA", (to_width, to_height), (0, 0, 0, 0))
     img.paste(image, ((to_width - iw) // 2, (to_height - ih) // 2))
     return img
+
+
+def alpha_to_white(img: Image.Image) -> Image.Image:
+    if img.mode == "RGBA":
+        data = img.getdata()
+
+        new_data = []
+
+        for item in data:
+            if item[3] == 0:
+                new_data.append((255, 255, 255, 255))
+            else:
+                new_data.append(item)
+
+        img.putdata(new_data)
+
+    img = img.convert("RGB")
+    return img
diff --git a/internals/util/lora_style.py b/internals/util/lora_style.py
index 8c4fb52bc1ac833cdd4a9d07215e063a5cf236a4..d58eeaea26b68d56709da5028cd0d52c0677aadb 100644
--- a/internals/util/lora_style.py
+++ b/internals/util/lora_style.py
@@ -52,9 +52,18 @@ class LoraStyle:
         def patch(self):
             def run(pipe):
                 path = self.__style["path"]
-                pipe.load_lora_weights(
-                    os.path.dirname(path), weight_name=os.path.basename(path)
-                )
+                name = str(self.__style["tag"]).replace(" ", "_")
+                weight = self.__style.get("weight", 1.0)
+                if name not in pipe.get_list_adapters().get("unet", []):
+                    print(
+                        f"Loading lora {os.path.basename(path)} with weights {weight}, name: {name}"
+                    )
+                    pipe.load_lora_weights(
+                        os.path.dirname(path),
+                        weight_name=os.path.basename(path),
+                        adapter_name=name,
+                    )
+                pipe.set_adapters([name], adapter_weights=[weight])
 
             for p in self.pipe:
                 run(p)
@@ -105,7 +114,17 @@ class LoraStyle:
     def prepend_style_to_prompt(self, prompt: str, key: str) -> str:
         if key in self.__styles:
             style = self.__styles[key]
-            return f"{', '.join(style['text'])}, {prompt}"
+            prompt = f"{', '.join(style['text'])}, {prompt}"
+            prompt = prompt.replace("<NOSEP>, ", "")
+        return prompt
+
+    def append_style_to_prompt(self, prompt: str, key: str) -> str:
+        if key in self.__styles and "text_append" in self.__styles[key]:
+            style = self.__styles[key]
+            if prompt.endswith(","):
+                prompt = prompt[:-1]
+            prompt = f"{prompt}, {', '.join(style['text_append'])}"
+            prompt = prompt.replace("<NOSEP>, ", "")
         return prompt
 
     def get_patcher(
@@ -140,7 +159,9 @@ class LoraStyle:
                         "path": str(file_path),
                         "weight": attr["weight"],
                         "type": attr["type"],
+                        "tag": item["tag"],
                         "text": attr["text"],
+                        "text_append": attr.get("text_append", []),
                         "negativePrompt": attr["negativePrompt"],
                     }
         return styles
@@ -159,4 +180,7 @@ class LoraStyle:
 
     @staticmethod
     def unload_lora_weights(pipe):
-        pipe.unload_lora_weights()
+        # we keep the lora layers in the adapters and unset it whenever
+        # not required instead of completely unloading it
+        pipe.set_adapters([])
+        # pipe.unload_lora_weights()
diff --git a/internals/util/model_loader.py b/internals/util/model_loader.py
index 62bf3b3b09ff158b021b0d2154f69060d37711e7..6a3eced8cc08c428a8aedc11ab6be196daa1c3d6 100644
--- a/internals/util/model_loader.py
+++ b/internals/util/model_loader.py
@@ -18,7 +18,9 @@ class ModelConfig:
     base_dimension: int = 512
     low_gpu_mem: bool = False
     base_model_variant: Optional[str] = None
+    base_model_revision: Optional[str] = None
     base_inpaint_model_variant: Optional[str] = None
+    base_inpaint_model_revision: Optional[str] = None
 
 
 def load_model_from_config(path):
@@ -31,7 +33,11 @@ def load_model_from_config(path):
             is_sdxl = config.get("is_sdxl", False)
             base_dimension = config.get("base_dimension", 512)
             base_model_variant = config.get("base_model_variant", None)
+            base_model_revision = config.get("base_model_revision", None)
             base_inpaint_model_variant = config.get("base_inpaint_model_variant", None)
+            base_inpaint_model_revision = config.get(
+                "base_inpaint_model_revision", None
+            )
 
             m_config.base_model_path = model_path
             m_config.base_inpaint_model_path = inpaint_model_path
@@ -39,7 +45,9 @@ def load_model_from_config(path):
             m_config.base_dimension = base_dimension
             m_config.low_gpu_mem = config.get("low_gpu_mem", False)
             m_config.base_model_variant = base_model_variant
+            m_config.base_model_revision = base_model_revision
             m_config.base_inpaint_model_variant = base_inpaint_model_variant
+            m_config.base_inpaint_model_revision = base_inpaint_model_revision
 
             #
             # if config.get("model_type") == "huggingface":
diff --git a/internals/util/prompt.py b/internals/util/prompt.py
index 688d5e89f7d917918ae1ebf42727d155e84ec4ce..0334564f7991c6ebcd95337d5aa207ddc38db427 100644
--- a/internals/util/prompt.py
+++ b/internals/util/prompt.py
@@ -21,6 +21,7 @@ def get_patched_prompt(
         for i in range(len(prompt)):
             prompt[i] = avatar.add_code_names(prompt[i])
             prompt[i] = lora_style.prepend_style_to_prompt(prompt[i], task.get_style())
+            prompt[i] = lora_style.append_style_to_prompt(prompt[i], task.get_style())
             if additional:
                 prompt[i] = additional + " " + prompt[i]
 
@@ -51,6 +52,7 @@ def get_patched_prompt_text2img(
     def add_style_and_character(prompt: str, prepend: str = ""):
         prompt = avatar.add_code_names(prompt)
         prompt = lora_style.prepend_style_to_prompt(prompt, task.get_style())
+        prompt = lora_style.append_style_to_prompt(prompt, task.get_style())
         prompt = prepend + prompt
         return prompt
 
@@ -102,6 +104,7 @@ def get_patched_prompt_tile_upscale(
     lora_style: LoraStyle,
     img_classifier: ImageClassifier,
     img2text: Image2Text,
+    is_sdxl=False,
 ):
     if task.get_prompt():
         prompt = task.get_prompt()
@@ -114,10 +117,12 @@ def get_patched_prompt_tile_upscale(
         prompt = task.PROMPT.merge_blip(blip)
 
     # remove anomalies in prompt
-    prompt = remove_colors(prompt)
+    if not is_sdxl:
+        prompt = remove_colors(prompt)
 
     prompt = avatar.add_code_names(prompt)
     prompt = lora_style.prepend_style_to_prompt(prompt, task.get_style())
+    prompt = lora_style.append_style_to_prompt(prompt, task.get_style())
 
     if not task.get_style():
         class_name = img_classifier.classify(
diff --git a/internals/util/sdxl_lightning.py b/internals/util/sdxl_lightning.py
new file mode 100644
index 0000000000000000000000000000000000000000..282c86acce43536e6858002a9a6ff87c6a38ed73
--- /dev/null
+++ b/internals/util/sdxl_lightning.py
@@ -0,0 +1,74 @@
+from pathlib import Path
+from re import S
+from typing import List, Union
+
+from diffusers import EulerDiscreteScheduler, StableDiffusionXLPipeline
+from diffusers.loaders.lora import StableDiffusionXLLoraLoaderMixin
+from torchvision.datasets.utils import download_url
+
+
+class LightningMixin:
+    LORA_8_STEP_URL = "https://huggingface.co/ByteDance/SDXL-Lightning/resolve/main/sdxl_lightning_8step_lora.safetensors"
+
+    __scheduler_old = None
+    __pipe: StableDiffusionXLPipeline = None
+    __scheduler = None
+
+    def configure_sdxl_lightning(self, pipe: StableDiffusionXLPipeline):
+        lora_path = Path.home() / ".cache" / "lora_8_step.safetensors"
+
+        download_url(self.LORA_8_STEP_URL, str(lora_path.parent), lora_path.name)
+
+        pipe.load_lora_weights(str(lora_path), adapter_name="8step_lora")
+        pipe.set_adapters([])
+
+        self.__scheduler = EulerDiscreteScheduler.from_config(
+            pipe.scheduler.config, timestep_spacing="trailing"
+        )
+        self.__scheduler_old = pipe.scheduler
+        self.__pipe = pipe
+
+    def enable_sdxl_lightning(self):
+        pipe = self.__pipe
+        pipe.scheduler = self.__scheduler
+
+        current = pipe.get_active_adapters()
+        current.extend(["8step_lora"])
+
+        weights = self.__find_adapter_weights(current)
+        pipe.set_adapters(current, adapter_weights=weights)
+
+        return {"guidance_scale": 0, "num_inference_steps": 8}
+
+    def disable_sdxl_lightning(self):
+        pipe = self.__pipe
+        pipe.scheduler = self.__scheduler_old
+
+        current = pipe.get_active_adapters()
+        current = [adapter for adapter in current if adapter != "8step_lora"]
+
+        weights = self.__find_adapter_weights(current)
+        pipe.set_adapters(current, adapter_weights=weights)
+
+    def __find_adapter_weights(self, names: List[str]):
+        pipe = self.__pipe
+
+        model = pipe.unet
+
+        from peft.tuners.tuners_utils import BaseTunerLayer
+
+        weights = []
+        for adapter_name in names:
+            weight = 1.0
+            for module in model.modules():
+                if isinstance(module, BaseTunerLayer):
+                    if adapter_name in module.scaling:
+                        weight = (
+                            module.scaling[adapter_name]
+                            * module.r[adapter_name]
+                            / module.lora_alpha[adapter_name]
+                        )
+
+            weights.append(weight)
+
+        return weights
diff --git a/internals/util/slack.py b/internals/util/slack.py
index b50fbe8d1743f3135e99d127020eed46aabdf390..2e22ce95b824a035f5d503ef3998ed6a9d7d924f 100644
--- a/internals/util/slack.py
+++ b/internals/util/slack.py
@@ -14,6 +14,8 @@ class Slack:
         self.error_webhook = "https://hooks.slack.com/services/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"
 
     def send_alert(self, task: Task, args: Optional[dict]):
+        if task.get_slack_url():
+            self.webhook_url = task.get_slack_url()
         raw = task.get_raw().copy()
 
         raw["environment"] = get_environment()
@@ -23,6 +25,7 @@ class Slack:
         raw.pop("task_id", None)
         raw.pop("maskImageUrl", None)
         raw.pop("aux_imageUrl", None)
+        raw.pop("slack_url", None)
 
         if args is not None:
             raw.update(args.items())
diff --git a/models/ultrasharp/model.py b/models/ultrasharp/model.py
index 26c0924adcf5c7d88344e619a0d19e6f1cc4b863..fe10ae8933881a1b1979407b8f482e72f163aa57 100644
--- a/models/ultrasharp/model.py
+++ b/models/ultrasharp/model.py
@@ -1,5 +1,7 @@
 from typing import List
 
+import cv2
+import numpy as np
 import torch
 
 import models.ultrasharp.arch as arch
@@ -25,5 +27,22 @@ class Ultrasharp:
 
         model.to("cuda")
 
+        if img.shape[2] == 4:  # RGBA image with alpha channel
+            img_mode = "RGBA"
+            alpha = img[:, :, 3]
+            img = img[:, :, 0:3]
+            alpha = cv2.cvtColor(alpha, cv2.COLOR_GRAY2RGB)
+        else:
+            img_mode = "RGB"
         img = upscale(model, img, self.tile_pad, self.tile)
+
+        # process alpha channel if necessary
+        if img_mode == "RGBA":
+            output_alpha = upscale(model, alpha, self.tile_pad, self.tile)
+            output_alpha = cv2.cvtColor(output_alpha, cv2.COLOR_BGR2GRAY)
+            # output_alpha = np.transpose(output_alpha[[2, 1, 0], :, :], (1, 2, 0))
+
+            # merge the alpha channel
+            img = cv2.cvtColor(img, cv2.COLOR_BGR2BGRA)
+            img[:, :, 3] = output_alpha
         return img, None
diff --git a/requirements.txt b/requirements.txt
index cd1d82f321366d5fa425bc74f1c7e98435bce1df..67cf0bf40a708f547f01b14259112d28c6831d56 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,7 @@
 boto3==1.24.61
 triton==2.0.0
-diffusers==0.25.0
+diffusers==0.26.0
+huggingface-hub==0.25.1
 fastapi==0.87.0
 Pillow==9.3.0
 redis==4.3.4
@@ -21,10 +22,7 @@ easydict==1.9.0
 albumentations
 kornia==0.5.0
 pytorch-lightning==1.2.9
-mmpose==0.29.0
-mmdet==2.28.2
 https://comic-assets.s3.ap-south-1.amazonaws.com/packages/v1/lora-diffusion-0.1.7.zip
-mmengine==0.8.4
 pydash==7.0.6
 scikit-learn==1.3.0
 accelerate==0.22.0
@@ -34,7 +32,6 @@ scikit-image==0.19.3
 omegaconf==2.3.0
 webdataset==0.2.48
 invisible-watermark 
-https://comic-assets.s3.ap-south-1.amazonaws.com/packages/mmcv_full-1.7.0-cp39-cp39-linux_x86_64.whl
 python-dateutil==2.8.2
 PyYAML
 invisible-watermark
@@ -44,3 +41,4 @@ onnxruntime-gpu
 imgaug==0.4.0
 tqdm==4.64.1
 toml
+peft