Should XOR operation performed on binary images only?

I want to perform XOR encryption and decryption on images.Should this operation performed on binary images only?

Answer 1

[Guillaume]

I assume this question came to be because you looked at the doc of xor in matlab and saw that it only applied to logical (binary / boolean) values. That's because xor is a logical operator.

It would be a bit pointless to have to binarise an image to be able to encrypt it. It certainly wouldn't be reversible anyway.

What you are looking for is the bit-wise xor, bitxor which can xor two integer bit xoring their corresponding bits.

encimage = bitxor(rawimage, somevalue)
%or
encimage = bitxor(rawimage, someotherimagethesamesize)

Answer 2

[Rushikesh Tade]

I think so because XOR is binary operator.

[Anushka]

I want to encrypt an RGB image with binary image using Xor and decrypt using XOR to generate the RGB image how can it be done