scripts/convert-to-16-bit.py

import os
import glob
from PIL import Image

def convert_high_bit_depth_images(root_dir, threshold_bit_depth):
    print(f"Searching for images in {root_dir} and its subdirectories...")
    for filepath in glob.iglob(os.path.join(root_dir, '**/*.(jpg|jpeg|png)'), recursive=True):
        print(f"Found image: {filepath}")
        with Image.open(filepath) as img:
            bit_depth = img.bits
            print(f"Image bit depth: {bit_depth} bits")
            if bit_depth > threshold_bit_depth:
                print(f"Converting image to 16-bit: {filepath}")
                img = img.convert('I;16')
                img.save(filepath)
                print(f"Conversion complete: {filepath}")
            else:
                print(f"Image bit depth is already 16-bit or lower: {filepath}")
    print("Conversion complete!")

def main():
    root_dir = 'E:\\training_dir'
    threshold_bit_depth = 16
    convert_high_bit_depth_images(root_dir, threshold_bit_depth)

if __name__ == "__main__":
    main()