python 生成随机图片

python numpy生成随机图

  

   

    

     

    
    

     

      # -*- coding: utf-8 -*-
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      import numpy as np
     
    
   

    

     

    
    

     

      import cv2
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      grayImage=np.random.randint(0, 255, (400, 400))
     
    
   

    

     

    
    

     

      cv2.imshow("GRAY", grayImage.astype(np.uint8))
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      bgrImage=np.random.randint(0, 255, (400, 400,3))
     
    
   

    

     

    
    

     

      cv2.imshow("bgr", bgrImage.astype(np.uint8))
     
    
   

    

     

    
    

     

      # cv2.imshow("BGR", bgrImage)
     
    
   

    

     

    
    

     

      cv2.waitKey(0)
     
    
  
 

python 生成随机圆

以下内容转自：

OpenCV python 绘制随机实心圆

  

   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      import numpy as np
     
    
   

    

     

    
    

     

      import cv2
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      def main():
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
    # 1.创建白色背景图片
     
    
   

    

     

    
    

     

          d = 400
     
    
   

    

     

    
    

     

          img = np.ones((d, d, 3), np.uint8) * 255
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
    # 2.循环随机绘制实心圆
     
    
   

    

     

    
    

     
    for i in range(0, 100):
     
    
   

    

     

    
    

     
        # 随机中心点
     
    
   

    

     

    
    

     

              center_x = np.random.randint(0, high=d)
     
    
   

    

     

    
    

     

              center_y = np.random.randint(0, high=d)
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
        # 随机半径与颜色
     
    
   

    

     

    
    

     

              radius = np.random.randint(5, high=d/5)
     
    
   

    

     

    
    

     

              color = np.random.randint(0, high=256, size=(3, )).tolist()
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

              cv2.circle(img, (center_x, center_y), radius, color, -1)
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
    # 3.显示结果
     
    
   

    

     

    
    

     

          cv2.imshow("img", img)
     
    
   

    

     

    
    

     

          cv2.waitKey()
     
    
   

    

     

    
    

     

          cv2.destroyAllWindows()
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      if __name__ == '__main__':
     
    
   

    

     

    
    

     

          main()
     
    
  
 

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/121609259