Walsh and Inverse Walsh Transform and MSE

Question

Raman kumar 2015-10-30

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/251839-walsh-and-inverse-walsh-transform-and-mse

评论： Image Analyst 2015-10-30

I have applied Walsh transform on 3-D images of folder and then Inverse Walsh. After that when i am calculating MSE of each image with every other image the value is same. What is wrong in my code? clc; clear all; close all; Dir = 'F:\Stuff\Dataset\SignDataset_Sobel\'; count = 0;

for i = 1 : 208 A = imread([Dir,int2str(i),'.jpg']); A = double(A); [s1 s2] = size(A); % bs=input('Enter the block sizes for division of the image: '); % Block Size bs=8; % Walsh temp=double(zeros(size(A))); for y=1:bs:s1-bs+1 for x=1:bs:s2-bs+1 croppedImage = A((y:y+bs-1),(x:x+bs-1)); t=getWalshTransform(croppedImage,bs); temp((y:y+bs-1),(x:x+bs-1))=t; end end % Inverse Walsh temp1=double(zeros(size(A))); for y=1:bs:s1-bs+1 for x=1:bs:s2-bs+1 croppedImage = temp((y:y+bs-1),(x:x+bs-1)); t=getInvWalshTransform(croppedImage,bs); temp1((y:y+bs-1),(x:x+bs-1))=t; end end end for ii = 1 : 208 for jj = 1 : 208

        count = count+1;   
        xmse(count,1)=0;
        xmse(count,2)=ii;
        xmse(count,3)=jj;
        [r c p]=size(temp1);
        for xi = 1 :r
          for xj = 1 : c
              for xk=1:3
                xmse(count,1)=xmse(count,1)+( (temp1(xi,xj,xk)-temp(xi,xj,xk)) *(temp1(xi,xj,xk)-temp(xi,xj,xk)));     
              end
          end
        end
        xmse(count,1)=xmse(count,1)/(3*r*c);
        fprintf('MSE of %f with %f is :%f\n',xmse(count,2),xmse(count,3),xmse(count,1));
    end
end