how to overcome this error?

??? Error using ==> PSNR at 5 The size of the 2 matrix are unequal

Error in ==> SN at 71 psn(1,ii)=PSNR(im1,img1);

• SN.m CODE attached
• PSNR.m CODE

function psnr_Value = PSNRN(A,B) % PSNR (Peak Signal to noise ratio)

if (size(A) ~= size(B)) error('The size of the 2 matrix are unequal')

   psnr_Value = NaN;
   return; 
elseif (A == B)
   disp('Images are identical: PSNR has infinite value')

   psnr_Value = 100;
   return;   
else

    maxValue = double(max(A(:)));

    % Calculate MSE, mean square error.
    mseImage = (double(A) - double(B)) .^ 2;
    [rows columns] = size(A);

    mse = sum(mseImage(:)) / (rows * columns);

    % Calculate PSNR (Peak Signal to noise ratio)
    psnr_Value = 10 * log10( 256^2 / mse);
end

end % function END

Answer 1

[dpb]

f (size(A) ~= size(B)) error('The size of the 2 matrix are unequal')

The function is designed for images that are the same size -- to "solve" the problem, use it as intended. Either make sure are using images that are fundamentally the same resolution or clip the larger to be the size of the smaller before calling the function.

[STUDENT_HUB]

Thanks for your answer.