imutils.py 文件源码

def _open_data_url(data, flag=cv2.IMREAD_COLOR):
    pos = data.find('base64,')
    if pos == -1:
        raise IOError("data url is invalid, head %s" % data[:20])

    pos += len('base64,')
    raw_data = base64.decodestring(data[pos:])
    image = np.asarray(bytearray(raw_data), dtype="uint8")
    image = cv2.imdecode(image, flag)
    return image