convert.py

import os
import sys
import glob
from PIL import Image
from tqdm import tqdm


def create_dir(directory):
    if not os.path.exists(directory):
        os.makedirs(directory)


def image_conversion(image_file, dest_format, dest_folder):
    image_name, image_extension = os.path.splitext(image_file)
    image_format = image_extension.lstrip('.')

    output_path = os.path.join(dest_folder, os.path.basename(image_name) + "." + dest_format)

    if image_format.lower() == dest_format.lower():
        with open(image_file, 'rb') as src, open(output_path, 'wb') as dst:
            dst.write(src.read())
    else:
        image = Image.open(image_file)
        if image.mode == 'RGBA':
            image = image.convert('RGB')
        if dest_format.lower() == 'jpg':
            image.save(output_path, "JPEG", quality=95)
        else:
            image.save(output_path, dest_format.upper())


def main():
    source_folder = 'images'
    converted_folder = 'converted'
    destination_format = 'gif'

    create_dir(converted_folder)

    allowed_file_extensions = ('webp', 'png', 'jpg', 'jpeg', 'tiff', 'bmp', 'gif')
    source_files = list(glob.glob(os.path.join(source_folder, '*')))

    print("Converting images...")

    for source_file in tqdm(source_files):
        _, file_extension = os.path.splitext(source_file)
        if file_extension.lstrip('.').lower() not in allowed_file_extensions:
            continue

        if os.path.isfile(source_file):
            image_conversion(source_file, destination_format.lower(), converted_folder)

    print("Finished converting images.")


if __name__ == '__main__':
    main()