swap1324 = @(x)([x((floor(size(x,1)/2)+1):end,(floor(size(x,2)/2)+1):end) x((floor(size(x,1)/2)+1):end,1:floor(size(x,2)/2)); x(1:floor(size(x,1)/2),(floor(size(x,1)/2)+1):end) x(1:floor(size(x,1)/2),1:floor(size(x,2)/2))]);
I = imread('cameraman.tif');
I2 = swap1324(I);
imtool(I2)
Obviously the above should be broken down into it's own function that doesn't have to repeat the function floor(size(stuff))) over and over again.
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