HF integration +uv + cli
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not-lain
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import os
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from typing import Annotated
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import cv2
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import tqdm
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import typer
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import imageio
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import numpy as np
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from PIL import Image
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import torch
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import torch.nn.functional as F
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from matanyone2.utils.download_util import load_file_from_url
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from matanyone2.utils.inference_utils import gen_dilate, gen_erosion, read_frame_from_videos
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from matanyone2.inference.inference_core import InferenceCore
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from matanyone2.utils.get_default_model import get_matanyone2_model
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from matanyone2.utils.device import get_default_device, safe_autocast_decorator
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import warnings
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warnings.filterwarnings("ignore")
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app = typer.Typer(help="MatAnyone2 video matting inference")
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@torch.inference_mode()
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@safe_autocast_decorator()
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def run_inference(input_path, mask_path, output_path, ckpt_path, n_warmup=10, r_erode=10,
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r_dilate=10, suffix="", save_image=False, max_size=-1):
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device = get_default_device()
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# download ckpt for the first inference
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pretrain_model_url = "https://github.com/pq-yang/MatAnyone2/releases/download/v1.0.0/matanyone2.pth"
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ckpt_path = load_file_from_url(pretrain_model_url, 'pretrained_models')
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# load MatAnyone model
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matanyone2 = get_matanyone2_model(ckpt_path, device)
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# init inference processor
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processor = InferenceCore(matanyone2, cfg=matanyone2.cfg)
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# inference parameters
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r_erode = int(r_erode)
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r_dilate = int(r_dilate)
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n_warmup = int(n_warmup)
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max_size = int(max_size)
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# load input frames
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vframes, fps, length, video_name = read_frame_from_videos(input_path)
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repeated_frames = vframes[0].unsqueeze(0).repeat(n_warmup, 1, 1, 1)
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vframes = torch.cat([repeated_frames, vframes], dim=0).float()
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length += n_warmup
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# resize if needed
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if max_size > 0:
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h, w = vframes.shape[-2:]
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min_side = min(h, w)
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if min_side > max_size:
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new_h = int(h / min_side * max_size)
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new_w = int(w / min_side * max_size)
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vframes = F.interpolate(vframes, size=(new_h, new_w), mode="area")
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print(f'Resize to {new_h}x{new_w} for processing...')
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# set output paths
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os.makedirs(output_path, exist_ok=True)
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if suffix != "":
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video_name = f'{video_name}_{suffix}'
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if save_image:
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os.makedirs(f'{output_path}/{video_name}', exist_ok=True)
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os.makedirs(f'{output_path}/{video_name}/pha', exist_ok=True)
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os.makedirs(f'{output_path}/{video_name}/fgr', exist_ok=True)
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# load the first-frame mask
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mask = Image.open(mask_path).convert('L')
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mask = np.array(mask)
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bgr = (np.array([120, 255, 155], dtype=np.float32) / 255).reshape((1, 1, 3))
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objects = [1]
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# [optional] erode & dilate
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if r_dilate > 0:
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mask = gen_dilate(mask, r_dilate, r_dilate)
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if r_erode > 0:
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mask = gen_erosion(mask, r_erode, r_erode)
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mask = torch.from_numpy(mask).float().to(device)
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if max_size > 0:
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mask = F.interpolate(mask.unsqueeze(0).unsqueeze(0), size=(new_h, new_w), mode="nearest")
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mask = mask[0, 0]
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# inference start
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phas = []
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fgrs = []
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for ti in tqdm.tqdm(range(length)):
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image = vframes[ti]
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image_np = np.array(image.permute(1, 2, 0))
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image = (image / 255.).float().to(device)
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if ti == 0:
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output_prob = processor.step(image, mask, objects=objects)
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output_prob = processor.step(image, first_frame_pred=True)
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else:
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if ti <= n_warmup:
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output_prob = processor.step(image, first_frame_pred=True)
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else:
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output_prob = processor.step(image)
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mask = processor.output_prob_to_mask(output_prob)
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pha = mask.unsqueeze(2).cpu().numpy()
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com_np = image_np / 255. * pha + bgr * (1 - pha)
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if ti > (n_warmup - 1):
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com_np = np.round(np.clip(com_np * 255.0, 0, 255)).astype(np.uint8)
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pha = np.round(np.clip(pha * 255.0, 0, 255)).astype(np.uint8)
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fgrs.append(com_np)
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phas.append(pha)
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if save_image:
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cv2.imwrite(f'{output_path}/{video_name}/fgr/{str(ti - n_warmup).zfill(4)}.png',
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com_np[..., [2, 1, 0]])
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cv2.imwrite(f'{output_path}/{video_name}/pha/{str(ti - n_warmup).zfill(4)}.png',
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pha)
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phas = np.array(phas)
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fgrs = np.array(fgrs)
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imageio.mimwrite(f'{output_path}/{video_name}_fgr.mp4', fgrs, fps=fps, quality=7)
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imageio.mimwrite(f'{output_path}/{video_name}_pha.mp4', phas, fps=fps, quality=7)
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@app.command()
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def main(
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input_path: Annotated[str, typer.Option("-i", "--input-path",
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help="Path of the input video or frame folder.")],
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mask_path: Annotated[str, typer.Option("-m", "--mask-path",
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help="Path of the first-frame segmentation mask.")],
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output_path: Annotated[str, typer.Option("-o", "--output-path",
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help="Output folder.")] = "results/",
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ckpt_path: Annotated[str, typer.Option("-c", "--ckpt-path",
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help="Path of the MatAnyone2 model.")] = "pretrained_models/matanyone2.pth",
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warmup: Annotated[int, typer.Option("-w", "--warmup",
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help="Number of warmup iterations for the first frame alpha prediction.")] = 10,
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erode_kernel: Annotated[int, typer.Option("-e", "--erode-kernel",
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help="Erosion kernel size on the input mask.")] = 10,
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dilate_kernel: Annotated[int, typer.Option("-d", "--dilate-kernel",
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help="Dilation kernel size on the input mask.")] = 10,
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suffix: Annotated[str, typer.Option(
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help="Suffix to specify different target when saving.")] = "",
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save_image: Annotated[bool, typer.Option("--save-image",
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help="Save output frames.")] = False,
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max_size: Annotated[int, typer.Option(
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help="Downsamples if min(w, h) exceeds this value. -1 means no limit.")] = -1,
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):
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"""Run MatAnyone2 video matting inference."""
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run_inference(
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input_path=input_path,
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mask_path=mask_path,
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output_path=output_path,
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ckpt_path=ckpt_path,
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n_warmup=warmup,
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r_erode=erode_kernel,
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r_dilate=dilate_kernel,
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suffix=suffix,
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save_image=save_image,
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max_size=max_size,
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)
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if __name__ == '__main__':
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app()
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