https://blog.youkuaiyun.com/renhanchi/article/details/77334537
求轮廓面积 cv2.contourArea()
参数1:某一轮廓
area = cv2.contourArea(contours[i])
https://blog.youkuaiyun.com/renhanchi/article/details/77334537
求轮廓面积 cv2.contourArea()
参数1:某一轮廓
area = cv2.contourArea(contours[i])