www.gusucode.com > images 案例代码 matlab源码程序 > images/DisplayAbsoluteDifferenceBetweenFilteredImageAndOriginalExample.m

    %% Display Absolute Difference between Filtered image and Original
% 
%%
% Read image into workspace.

% Copyright 2015 The MathWorks, Inc.

I = imread('cameraman.tif');
%%
% Filter the image.
J = uint8(filter2(fspecial('gaussian'), I));
%%
% Calculate the absolute difference of the two images.
K = imabsdiff(I,J);
%%
% Display the absolute difference image.
figure
imshow(K,[])