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from .runners.fast import TableManager, PyramidPatchMatcher
from PIL import Image
import numpy as np
import cupy as cp
class FastBlendSmoother:
def __init__(self):
self.batch_size = 8
self.window_size = 64
self.ebsynth_config = {
"minimum_patch_size": 5,
"threads_per_block": 8,
"num_iter": 5,
"gpu_id": 0,
"guide_weight": 10.0,
"initialize": "identity",
"tracking_window_size": 0,
}
@staticmethod
def from_model_manager(model_manager):
# TODO: fetch GPU ID from model_manager
return FastBlendSmoother()
def run(self, frames_guide, frames_style, batch_size, window_size, ebsynth_config):
frames_guide = [np.array(frame) for frame in frames_guide]
frames_style = [np.array(frame) for frame in frames_style]
table_manager = TableManager()
patch_match_engine = PyramidPatchMatcher(
image_height=frames_style[0].shape[0],
image_width=frames_style[0].shape[1],
channel=3,
**ebsynth_config
)
# left part
table_l = table_manager.build_remapping_table(frames_guide, frames_style, patch_match_engine, batch_size, desc="FastBlend Step 1/4")
table_l = table_manager.remapping_table_to_blending_table(table_l)
table_l = table_manager.process_window_sum(frames_guide, table_l, patch_match_engine, window_size, batch_size, desc="FastBlend Step 2/4")
# right part
table_r = table_manager.build_remapping_table(frames_guide[::-1], frames_style[::-1], patch_match_engine, batch_size, desc="FastBlend Step 3/4")
table_r = table_manager.remapping_table_to_blending_table(table_r)
table_r = table_manager.process_window_sum(frames_guide[::-1], table_r, patch_match_engine, window_size, batch_size, desc="FastBlend Step 4/4")[::-1]
# merge
frames = []
for (frame_l, weight_l), frame_m, (frame_r, weight_r) in zip(table_l, frames_style, table_r):
weight_m = -1
weight = weight_l + weight_m + weight_r
frame = frame_l * (weight_l / weight) + frame_m * (weight_m / weight) + frame_r * (weight_r / weight)
frames.append(frame)
frames = [Image.fromarray(frame.clip(0, 255).astype("uint8")) for frame in frames]
return frames
def __call__(self, rendered_frames, original_frames=None, **kwargs):
frames = self.run(
original_frames, rendered_frames,
self.batch_size, self.window_size, self.ebsynth_config
)
mempool = cp.get_default_memory_pool()
pinned_mempool = cp.get_default_pinned_memory_pool()
mempool.free_all_blocks()
pinned_mempool.free_all_blocks()
return frames |