permutation of a watermark image
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umar siyab
on 24 Nov 2011
Commented: Walter Roberson
on 11 Oct 2020
i have taken a watermark image and assign -1 value to black and 1 to white to whole watermark now i want permutation of this image. whats would b the efficient method for permuation process of this image.. if anyone have matlab code for this send me and please help me...
regards siyab
Accepted Answer
Walter Roberson
on 24 Nov 2011
reshape(Image(randperm(numel(Image))),size(Image))
6 Comments
Walter Roberson
on 11 Oct 2020
You cannot get back to the original image by reshaping the result of the above. The order of the pixels has been randomized. You would need to know (or be able to recreate) the random order that was used.
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