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Add key with the pixels

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sadiqa ilyas
sadiqa ilyas on 11 Sep 2019
How to add 1 4 key with an image size 256*256 in matlab. e.g
rng(78932); %agree upon a seed
rand_key = uint8(randi([0 255], 1, 4));
apparantly addition is not possible Is there a way to do addition


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