Create app.py

app.py

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+# Copyright (C) 2020 * Ltd. All rights reserved.
+# author : Sanghyeon Jo <[email protected]>
+
+import gradio as gr
+
+import os
+import sys
+import copy
+import shutil
+import random
+import argparse
+import numpy as np
+
+import torch
+import torch.nn as nn
+import torch.nn.functional as F
+
+from torchvision import transforms
+from torch.utils.tensorboard import SummaryWriter
+
+from torch.utils.data import DataLoader
+
+from core.puzzle_utils import *
+from core.networks import *
+from core.datasets import *
+
+from tools.general.io_utils import *
+from tools.general.time_utils import *
+from tools.general.json_utils import *
+
+from tools.ai.log_utils import *
+from tools.ai.demo_utils import *
+from tools.ai.optim_utils import *
+from tools.ai.torch_utils import *
+from tools.ai.evaluate_utils import *
+
+from tools.ai.augment_utils import *
+from tools.ai.randaugment import *
+
+import PIL.Image
+
+parser = argparse.ArgumentParser()
+
+###############################################################################
+# Dataset
+###############################################################################
+parser.add_argument('--seed', default=2606, type=int)
+parser.add_argument('--num_workers', default=4, type=int)
+
+###############################################################################
+# Network
+###############################################################################
+parser.add_argument('--architecture', default='DeepLabv3+', type=str)
+parser.add_argument('--backbone', default='resnet50', type=str)
+parser.add_argument('--mode', default='fix', type=str)
+parser.add_argument('--use_gn', default=True, type=str2bool)
+
+###############################################################################
+# Inference parameters
+###############################################################################
+parser.add_argument('--tag', default='', type=str)
+
+parser.add_argument('--domain', default='val', type=str)
+
+parser.add_argument('--scales', default='0.5,1.0,1.5,2.0', type=str)
+parser.add_argument('--iteration', default=10, type=int)
+
+if __name__ == '__main__':
+    ###################################################################################
+    # Arguments
+    ###################################################################################
+    args = parser.parse_args()
+
+    model_dir = create_directory('./experiments/models/')
+    model_path = model_dir + f'DeepLabv3+@ResNet-50@[email protected]'
+
+    if 'train' in args.domain:
+        args.tag += '@train'
+    else:
+        args.tag += '@' + args.domain
+
+    args.tag += '@scale=%s' % args.scales
+    args.tag += '@iteration=%d' % args.iteration
+
+    set_seed(args.seed)
+    log_func = lambda string='': print(string)
+
+    ###################################################################################
+    # Transform, Dataset, DataLoader
+    ###################################################################################
+    imagenet_mean = [0.485, 0.456, 0.406]
+    imagenet_std = [0.229, 0.224, 0.225]
+
+    normalize_fn = Normalize(imagenet_mean, imagenet_std)
+
+    # for mIoU
+    meta_dic = read_json('./data/VOC_2012.json')
+
+    ###################################################################################
+    # Network
+    ###################################################################################
+    if args.architecture == 'DeepLabv3+':
+        model = DeepLabv3_Plus(args.backbone, num_classes=meta_dic['classes'] + 1, mode=args.mode,
+                               use_group_norm=args.use_gn)
+    elif args.architecture == 'Seg_Model':
+        model = Seg_Model(args.backbone, num_classes=meta_dic['classes'] + 1)
+    elif args.architecture == 'CSeg_Model':
+        model = CSeg_Model(args.backbone, num_classes=meta_dic['classes'] + 1)
+
+    model.eval()
+
+    log_func('[i] Architecture is {}'.format(args.architecture))
+    log_func('[i] Total Params: %.2fM' % (calculate_parameters(model)))
+    log_func()
+
+    load_model(model, model_path, parallel=False)
+
+    #################################################################################################
+    # Evaluation
+    #################################################################################################
+    eval_timer = Timer()
+    scales = [float(scale) for scale in args.scales.split(',')]
+
+    model.eval()
+    eval_timer.tik()
+
+
+    def inference(images, image_size):
+        logits = model(images)
+        logits = resize_for_tensors(logits, image_size)
+
+        logits = logits[0] + logits[1].flip(-1)
+        logits = get_numpy_from_tensor(logits).transpose((1, 2, 0))
+        return logits
+
+
+    def predict_image(ori_image):
+        ori_image = PIL.Image.fromarray(ori_image)
+        with torch.no_grad():
+            ori_w, ori_h = ori_image.size
+
+            cams_list = []
+
+            for scale in scales:
+                image = copy.deepcopy(ori_image)
+                image = image.resize((round(ori_w * scale), round(ori_h * scale)), resample=PIL.Image.BICUBIC)
+
+                image = normalize_fn(image)
+                image = image.transpose((2, 0, 1))
+
+                image = torch.from_numpy(image)
+                flipped_image = image.flip(-1)
+
+                images = torch.stack([image, flipped_image])
+
+                cams = inference(images, (ori_h, ori_w))
+                cams_list.append(cams)
+
+            preds = np.sum(cams_list, axis=0)
+            preds = F.softmax(torch.from_numpy(preds), dim=-1).numpy()
+
+            if args.iteration > 0:
+                preds = crf_inference(np.asarray(ori_image), preds.transpose((2, 0, 1)), t=args.iteration)
+                pred_mask = np.argmax(preds, axis=0)
+            else:
+                pred_mask = np.argmax(preds, axis=-1)
+
+            return pred_mask.astype(np.uint8)
+
+
+    demo = gr.Interface(
+        fn=predict_image,
+        inputs="image",
+        outputs="image"
+    )
+
+    demo.launch()