How can I measure PSNR or MSE for 100 images and save the result to excel file?

How can I measure PSNR or MSE for 100 images and save the result to excel file? I can do it for one image each time but it take so long to finish the 100 images.

Answer 1

[Stalin Samuel]

 % Example code
list = dir('*.jpg') %list of images in the directory

for i = 1:length(list)

      I = imread(list(i).name);
      A = imnoise(I,'salt & pepper', 0.02);

      [peaksnr, snr] = psnr(A, I);

      MSE=mean2((A-I).^2);
      data(i,:) = [peaksnr MSE];

end
 xlswrite('mmse.xlsx',data);

[Abdullah]

i got this error "Undefined function or variable 'data'"

[Stalin Samuel]

I am not getting any error.And the data was saved in the excel file successfully.Once again cross check your code .Also verify the working directory.