You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
79 lines
3.3 KiB
Python
79 lines
3.3 KiB
Python
"""
|
|
python generate_videomatte_with_background_image.py \
|
|
--videomatte-dir ../matting-data/VideoMatte240K_JPEG_HD/test \
|
|
--background-dir ../matting-data/Backgrounds/valid \
|
|
--num-samples 25 \
|
|
--resize 512 288 \
|
|
--out-dir ../matting-data/evaluation/vidematte_static_sd/
|
|
"""
|
|
|
|
import argparse
|
|
import os
|
|
import pims
|
|
import numpy as np
|
|
import random
|
|
from PIL import Image
|
|
from tqdm import tqdm
|
|
|
|
parser = argparse.ArgumentParser()
|
|
parser.add_argument('--videomatte-dir', type=str, required=True)
|
|
parser.add_argument('--background-dir', type=str, required=True)
|
|
parser.add_argument('--num-samples', type=int, default=20)
|
|
parser.add_argument('--num-frames', type=int, default=100)
|
|
parser.add_argument('--resize', type=int, default=None, nargs=2)
|
|
parser.add_argument('--out-dir', type=str, required=True)
|
|
parser.add_argument('--extension', type=str, default='.png')
|
|
args = parser.parse_args()
|
|
|
|
random.seed(10)
|
|
|
|
videomatte_filenames = [(clipname, sorted(os.listdir(os.path.join(args.videomatte_dir, 'fgr', clipname))))
|
|
for clipname in sorted(os.listdir(os.path.join(args.videomatte_dir, 'fgr')))]
|
|
|
|
background_filenames = os.listdir(args.background_dir)
|
|
random.shuffle(background_filenames)
|
|
|
|
for i in range(args.num_samples):
|
|
|
|
clipname, framenames = videomatte_filenames[i % len(videomatte_filenames)]
|
|
|
|
out_path = os.path.join(args.out_dir, str(i).zfill(4))
|
|
os.makedirs(os.path.join(out_path, 'fgr'), exist_ok=True)
|
|
os.makedirs(os.path.join(out_path, 'pha'), exist_ok=True)
|
|
os.makedirs(os.path.join(out_path, 'com'), exist_ok=True)
|
|
os.makedirs(os.path.join(out_path, 'bgr'), exist_ok=True)
|
|
|
|
with Image.open(os.path.join(args.background_dir, background_filenames[i])) as bgr:
|
|
bgr = bgr.convert('RGB')
|
|
|
|
|
|
base_t = random.choice(range(len(framenames) - args.num_frames))
|
|
|
|
for t in tqdm(range(args.num_frames), desc=str(i).zfill(4)):
|
|
with Image.open(os.path.join(args.videomatte_dir, 'fgr', clipname, framenames[base_t + t])) as fgr, \
|
|
Image.open(os.path.join(args.videomatte_dir, 'pha', clipname, framenames[base_t + t])) as pha:
|
|
fgr = fgr.convert('RGB')
|
|
pha = pha.convert('L')
|
|
|
|
if args.resize is not None:
|
|
fgr = fgr.resize(args.resize, Image.BILINEAR)
|
|
pha = pha.resize(args.resize, Image.BILINEAR)
|
|
|
|
|
|
if i // len(videomatte_filenames) % 2 == 1:
|
|
fgr = fgr.transpose(Image.FLIP_LEFT_RIGHT)
|
|
pha = pha.transpose(Image.FLIP_LEFT_RIGHT)
|
|
|
|
fgr.save(os.path.join(out_path, 'fgr', str(t).zfill(4) + args.extension))
|
|
pha.save(os.path.join(out_path, 'pha', str(t).zfill(4) + args.extension))
|
|
|
|
if t == 0:
|
|
bgr = bgr.resize(fgr.size, Image.BILINEAR)
|
|
bgr.save(os.path.join(out_path, 'bgr', str(t).zfill(4) + args.extension))
|
|
else:
|
|
os.symlink(str(0).zfill(4) + args.extension, os.path.join(out_path, 'bgr', str(t).zfill(4) + args.extension))
|
|
|
|
pha = np.asarray(pha).astype(float)[:, :, None] / 255
|
|
com = Image.fromarray(np.uint8(np.asarray(fgr) * pha + np.asarray(bgr) * (1 - pha)))
|
|
com.save(os.path.join(out_path, 'com', str(t).zfill(4) + args.extension))
|