Function threshold_bbox

plugins/game-studio/scripts/normalize_sprite_strip.py:57–59

(image: Image.Image, alpha_threshold: int)

def threshold_bbox(image: Image.Image, alpha_threshold: int) -> tuple[int, int, int, int] | None:
    alpha = image.getchannel("A").point(lambda value: 255 if value > alpha_threshold else 0)
    return alpha.getbbox()


def crop_to_content(image: Image.Image, alpha_threshold: int) -> Image.Image | None: