function imageSet = FrameDifferences(originalImageSet)
% imageSet = FrameDifferences(originalImageSet)
% This function gets the frame differences between each image and puts the
% images in a new image set.
% Author : Sasakthi Abeysinghe, Timothy Simpson
% Date   : 04/05/2006

disp('Getting the Image difference of each consecutive frame');

initialized = 0;
for i = 2:size(originalImageSet, 2)
    image = transpose(originalImageSet(:, i) - originalImageSet(:, i-1));
    if(initialized)
        imageSet = [imageSet; image];
    else
        imageSet = image;
        initialized = 1;
    end
end
if(initialized)
    imageSet = transpose(imageSet);
end

clear i;
clear initialized;
clear image;