python边缘检测显示原图边缘

  

   

    

     

    
    

     

      def bianyuan():
     
    
   

    

     

    
    

     
 import cv2
     
    
   

    

     

    
    

     
 import numpy as np
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

       vc=cv2.VideoCapture(0)
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
 while True:
     
    
   

    

     

    
    

     

       ret,img=vc.read()
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

       start=time.time()
     
    
   

    

     

    
    

     

       source = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
 # sobel_x:发现垂直边缘
     
    
   

    

     

    
    

     

       sobel_x = cv2.Sobel(source, cv2.CV_64F, 1, 0)
     
    
   

    

     

    
    

     
 # sobel_y:发现水平边缘
     
    
   

    

     

    
    

     

       sobel_y = cv2.Sobel(source, cv2.CV_64F, 0, 1)
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

       sobel_x = np.uint8(np.absolute(sobel_x))
     
    
   

    

     

    
    

     

       sobel_y = np.uint8(np.absolute(sobel_y))
     
    
   

    

     

    
    

     

       np.set_printoptions(threshold=np.inf)
     
    
   

    

     

    
    

     

       sobelCombined = cv2.bitwise_or(sobel_x, sobel_y)  # 按位或
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
 # sum = sobel_x + sobel_y
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
 # cv2.imshow('sobel_combined', sobelCombined)
     
    
   

    

     

    
    

     

       sobelCombined = cv2.cvtColor(sobelCombined, cv2.COLOR_GRAY2BGR)
     
    
   

    

     

    
    

     

       sobelCombined = cv2.bitwise_and(sobelCombined, img)  # 按位或
     
    
   

    

     

    
    

     

       print(time.time() - start, '2')
     
    
   

    

     

    
    

     

       cv2.imshow('aaa', sobelCombined)
     
    
   

    

     

    
    

     

       cv2.waitKey(1)
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      if __name__ == '__main__':
     
    
   

    

     

    
    

     

       bianyuan()
     
    
  
 

文章来源: blog.csdn.net，作者：网奇，版权归原作者所有，如需转载，请联系作者。

原文链接：blog.csdn.net/jacke121/article/details/103067966