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