求助大神，Python opencv怎么提取轮廓的像素点啊！！！！

来日可期plus

求助大神，Python opencv怎么提取轮廓的像素点啊！！！！

田螺

搬运：

1. import cv2  
   
2. 
   
3. img = cv2.imread('contour.jpg')  
   
4. gray = cv2.cvtColor(img,cv2.COLOR_BGR2GRAY)  
   
5. ret, binary = cv2.threshold(gray,127,255,cv2.THRESH_BINARY)  
   
6.   
   
7. contours, hierarchy = cv2.findContours(binary,cv2.RETR_TREE,cv2.CHAIN_APPROX_SIMPLE)  
   
8. cv2.drawContours(img,contours,-1,(0,0,255),3)  
   
9.   
   
10. cv2.imshow("img", img)  
    
11. cv2.waitKey(0)
    

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