MATLAB: Matrix dimensions must agree

image denoisingImage Processing Toolbox

i used the builtin Matlab function weiner2 and did the example below… it was an example in the document of weiner function… but i get the below error… please can someone help me rectify it…
 RGB = imread('saturn.png');
 I = rgb2gray(RGB);
 J = imnoise(I,'gaussian',0,0.025);
 K = wiener2(J,[5 5]);
 figure, imshow(K)
 ??? Error using ==> minus
 Matrix dimensions must agree.
 Error in ==> wiener2 at 71
 f = g - localMean;

Best Answer

Please give the entire error message, not just a small part snipped out like you did.
The code works just fine for me. I don't get that error.
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