| 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): |
| |
| 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 |
| ) |
| |
| 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") |
| |
| 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] |
| |
| 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 |
