背景和文字分离的matlab实现

  

   

    

     

    
    

     

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      %该程序可实现将背景和文字分离
     
    
   

    

     

    
    

     

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      clear;
     
    
   

    

     

    
    

     

      close all;
     
    
   

    

     

    
    

     

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      %加载入要处理的图片
     
    
   

    

     

    
    

     

      I=imread('6.jpg');
     
    
   

    

     

    
    

     

      %将I变为[0,1]的值
     
    
   

    

     

    
    

     

      I=mat2gray(I);
     
    
   

    

     

    
    

     

      %对I进行中值滤波
     
    
   

    

     

    
    

     

      A=imfilter(I,fspecial('average',16),'replicate');
     
    
   

    

     

    
    

     

      S=A-I-0.04;
     
    
   

    

     

    
    

     

      %0为阈值，进行二值化
     
    
   

    

     

    
    

     

      S=im2bw(S,0);
     
    
   

    

     

    
    

     

      S=imcomplement(S);
     
    
   

    

     

    
    

     

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      %显示原始图像和处理后图像
     
    
   

    

     

    
    

     

      subplot(121);
     
    
   

    

     

    
    

     

      imshow(I);
     
    
   

    

     

    
    

     

      subplot(122);
     
    
   

    

     

    
    

     

      imshow(S);
     
    
   

    

     

    
    

     

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原文链接：wenyusuran.blog.csdn.net/article/details/43406071