擅长:python、mysql、java
<pre><code>rect = cv2.minAreaRect(cnt)
box = cv2.cv.BoxPoints(rect) # cv2.boxPoints(rect) for OpenCV 3.x
box = np.int0(box)
cv2.drawContours(im,[box],0,(0,0,255),2)
</code></pre>
<p>应该会成功的。</p>
<p>资料来源:</p>
<p>1)<a href="http://opencvpython.blogspot.in/2012/06/contours-2-brotherhood.html" rel="noreferrer">http://opencvpython.blogspot.in/2012/06/contours-2-brotherhood.html</a></p>
<p>2)<a href="https://stackoverflow.com/questions/11779100/python-opencv-box2d">Python OpenCV Box2D</a></p>