convert_play.py 文件源码

def square_bbox(img, fname):
    print("square bbox conversion done for image: %s" % fname)
    w, h = img.size
    left = max((w - h) // 2, 0)
    upper = 0
    right = min(w - (w - h) // 2, w)
    lower = h
    return (left, upper, right, lower)