MATLAB: How to take union of images

union

i rotate an image a of size 150*150 from 0 to 90 degrees. I wanted to take the union of all images rotated and then calculate mean and max of the union images… how to do that…. please do reply…
 for j = 0:90
    rROI = imresize(ROI, [150 150]);
    a = imrotate(rROI,j);
 end
is it possible to display mean and max of that image also….

Best Answer

union is not clear yet, but try this way :
a Sample :
 X=imread('circuit.tif');
 ROI=X(1:100,1:100);
 F1=rot90(ROI,1);
 F2=rot90(ROI,2);
 F3=rot90(ROI,3);
You have the rotated parts, for easy calculus ROI is considered square, you can now compte the mean (F1+F2+F3)/3 or the variance or the std.....
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