cv2.arcLength

cv2.arcLength是一个OpenCV函数，用于计算轮廓的周长。它的语法是：retval=cv.arcLength(curve, closed)。其中curve是输入的轮廓，closed是一个布尔值，用于指定轮廓是否闭合。返回值retval表示轮廓的周长。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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