from pathlib import Path
from PIL import Image

Image.MAX_IMAGE_PIXELS = 1000000000

def resize_image(file_path, scale_percent):
    with Image.open(file_path) as img:
        width, height = img.size
        new_width = int(width * scale_percent / 100)
        new_height = int(height * scale_percent / 100)
        img_resized = img.resize((new_width, new_height))
    return img_resized

def process_files_in_directory(directory_path, size_threshold, scale_percent):
    dir_path = Path(directory_path)
    for file_path in dir_path.glob('*.png'):
        file_size = file_path.stat().st_size
        if file_size >= size_threshold:
            img_resized = resize_image(file_path, scale_percent)
            img_resized.save(file_path)
            resized_file_size = file_path.stat().st_size  # リサイズ後のファイルサイズを取得
            print(f"Resized and saved {file_path} with new size: {resized_file_size} bytes")

if __name__ == "__main__":
    directory_path = r"E:\Dataset\XXXXXXX"  # ここにディレクトリへのパスを入力してください
    size_threshold = 32 * 1024 * 1024  # 32MB
    scale_percent = 50  # 縮小率50%
    
    process_files_in_directory(directory_path, size_threshold, scale_percent)