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From: Alexandru on 3 Jul 2010 15:45
I need an example in Matlab code ! ...like i said , i don't use matlab for this kind of things ... The only thing i used from matlab was simulink (Automatic faculty my spaciality) !
From: ImageAnalyst on 3 Jul 2010 16:17
OK, here's some demo code, but I'm going to deny you the opportunity
to learn it better by trying it yourself.
You're welcome.

clc; % Clear the command window.
close all; % Close all figures (except those of imtool.)
imtool close all; % Close all imtool figures.
clear; % Erase all existing variables.
workspace; % Make sure the workspace panel is showing.
fontSize = 20;

% Read in a standard MATLAB gray scale demo image.
folder = 'C:\Program Files\MATLAB\R2010a\toolbox\images\imdemos';
baseFileName = 'cameraman.tif';
fullFileName = fullfile(folder, baseFileName);
grayImage = imread(fullFileName);
% Get the dimensions of the image. numberOfColorBands should be = 1.
[rows columns numberOfColorBands] = size(grayImage);
% Display the original gray scale image.
subplot(2, 2, 1);
imshow(grayImage, []);
title('Original Grayscale Image', 'FontSize', fontSize);
set(gcf, 'Position', get(0,'Screensize')); % Enlarge figure to full
screen.

% Make a second image with a black block on it.
image2 = grayImage;
image2(100:160, 170:230) = 0;
% Display it.
subplot(2, 2, 2);
imshow(image2, []);
title('Second Image', 'FontSize', fontSize);

% Calculate difference:
differenceImage = grayImage - image2;
% Display it.
subplot(2, 2, 3);
imshow(differenceImage, []);
title('Difference Image', 'FontSize', fontSize);

% Threshold the difference.
thresholdedImage = differenceImage > 4;
% Sum up the image.
sumOfAllPixels = sum(sum(thresholdedImage));

minAllowableDifference = 1000; % Choose something that works for you.
if sumOfAllPixels > minAllowableDifference
uiwait(msgbox('The images are different.'));
else
uiwait(msgbox('The images are the same.'));
end
From: Alexandru on 3 Jul 2010 17:13
Thank you very much ! I will learn eventualy , but now i don't stay very well with the time ! I will take my License degree (i think that is called "bachelor") in 4 weeks! Thanks again ! have a nice day!
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