convert.py

import os
from PIL import Image
from pillow_heif import register_heif_opener

register_heif_opener()

src = "/vast/ds5725/OOPS/OOPS_raw_data"
dst = "/vast/ds5725/OOPS/images"

os.makedirs(dst, exist_ok=True)

for fname in os.listdir(src):
    if fname.lower().endswith(".jpg") or fname.lower().endswith(".jpeg"):
        jpg_path = os.path.join(src, fname)
        png_name = os.path.splitext(fname)[0] + ".png"
        png_path = os.path.join(dst, png_name)

        if os.path.exists(png_path):
            print(f"Skipping (exists): {png_path}")
            continue

        img = Image.open(jpg_path).convert("RGB")
        img.save(png_path, "PNG")

print("Done!")