滑动验证码计算滑块的距离

方法

    @staticmethod
    def get_distance(fg, bg):
        """
        计算滑动距离
        """
        target = cv2.imdecode(np.asarray(bytearray(fg.read()), dtype=np.uint8), 0)
        template = cv2.imdecode(np.asarray(bytearray(bg.read()), dtype=np.uint8), 0)
        result = cv2.matchTemplate(target, template, cv2.TM_CCORR_NORMED)
        _, distance = np.unravel_index(result.argmax(), result.shape)
        return distance

调用示例

      r = requests.get(fg_url)
      fg = BytesIO(r.content)

      r = requests.get(bg_url)
      bg = BytesIO(r.content)

      # 计算滑动距离
      distance = self.get_distance(fg, bg)