Matlab imshow

What is wrong with this code?

im = imread('C:\Documents and Settings\Tom\battlestargalactica.jpg'); imshow(im);

im2 = imresize(im, 0.95); imshow(im2);

im = imsubtract(im, im2); imshow(im); imwrite(im,test,jpg);

Answer 1

[Ivan van der Kroon]

this gives an error with imsubstract because the images are not of the same size.