kohya_ss / tools /convert_images_to_webp.py
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import argparse
import glob
import os
from pathlib import Path
from PIL import Image
def main():
# Define the command-line arguments
parser = argparse.ArgumentParser()
parser.add_argument("directory", type=str,
help="the directory containing the images to be converted")
parser.add_argument("--in_ext", type=str, default="webp",
help="the input file extension")
parser.add_argument("--delete_originals", action="store_true",
help="whether to delete the original files after conversion")
# Parse the command-line arguments
args = parser.parse_args()
directory = args.directory
in_ext = args.in_ext
delete_originals = args.delete_originals
# Set the output file extension to .webp
out_ext = "webp"
# Create the file pattern string using the input file extension
file_pattern = f"*.{in_ext}"
# Get the list of files in the directory that match the file pattern
files = glob.glob(os.path.join(directory, file_pattern))
# Iterate over the list of files
for file in files:
# Open the image file
img = Image.open(file)
# Create a new file path with the output file extension
new_path = Path(file).with_suffix(f".{out_ext}")
print(new_path)
# Check if the output file already exists
if new_path.exists():
# Skip the conversion if the output file already exists
print(f"Skipping {file} because {new_path} already exists")
continue
# Save the image to the new file as lossless
img.save(new_path, lossless=True)
# Optionally, delete the original file
if delete_originals:
os.remove(file)
if __name__ == "__main__":
main()