python opencv 画米字形状

效果图：

代码： 

  

   

    

     

    
    

     

      import cv2
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      img=cv2.imread('2621.jpg')
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      if img.shape[1] > 15000:
     
    
   

    

     

    
    

     

          x_scale = 15000 / img.shape[1]
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

          img = cv2.resize(img, None, fx=x_scale, fy=x_scale, interpolation=cv2.INTER_AREA)
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      height,width=img.shape[:2]
     
    
   

    

     

    
    

     

      thickness = 1
     
    
   

    

     

    
    

     

      lineType = 4
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      points=[[0,0,width,height]]
     
    
   

    

     

    
    

     

      points.append([0,0,width//2,height//2])
     
    
   

    

     

    
    

     

      points.append([width//2,0,width,height//2])
     
    
   

    

     

    
    

     

      points.append([0,height//2,width//2,height])
     
    
   

    

     

    
    

     

      points.append([width//2,height//2,width,height])
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      for point in points:
     
    
   

    

     

    
    

     

          x1,y1,x2,y2=point
     
    
   

    

     

    
    

     

          ptStart = (x1, y1)
     
    
   

    

     

    
    

     

          ptEnd = (x2,y2)
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

          lines=[[(x1, y2),(x2,y1)]]
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

          lines.append([(x1, y1),(x2,y2)])
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

          lines.append([(x1, (y1+ y2)//2),(x2, (y1+ y2)//2)])
     
    
   

    

     

    
    

     

          lines.append([((x1+x2)//2, y1),((x1+x2)//2,y2)])
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
    for data in lines:
     
    
   

    

     

    
    

     

              cv2.line(img, data[0], data[1], (0, 0, 255), thickness, lineType)
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      cv2.imwrite("result.jpg",img)
     
    
   

    

     

    
    

     

      # cv2.imshow("sadf",img)
     
    
   

    

     

    
    

     

      # cv2.waitKey()
     
    
  
 

文章来源: blog.csdn.net，作者：AI视觉网奇，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/123415231