Deterministic SHA-256 hash from the image RGB data.

gistfile1.txt

from pathlib import Path
import hashlib
from PIL import Image

def _image_rgb_hash(path: Path) -> str:
    """Compute a deterministic SHA-256 hash from the image RGB data."""
    with Image.open(path) as img:
        rgb_img = img.convert("RGB")
        pixel_bytes = rgb_img.tobytes()

    h = hashlib.sha256()
    h.update(pixel_bytes)
    return h.hexdigest()