matlab code for max filter applied to an image. max filter having window size 7*7

matlab code for max filter applied to an image. max filter having window size 7*7

A = imread('E:\under\data\fih.PNG');
B=zeros(size(A));

%PAD THE MATRIX A WITH ZEROS
modifyA=padarray(A,[1 1]);

        x=[1:3]';
        y=[1:3]';
       
for i= 1:size(modifyA,1)-2
    for j=1:size(modifyA,2)-2
      
       %VECTORIZED METHOD
       window=reshape(modifyA(i+x-1,j+y-1),[],1);

       %FIND THE MAXIMUM VALUE IN THE SELECTED WINDOW
        
       B(i,j)=max(window);
   
    end
end
B=uint8(B);

[KSSV]

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