cipher in iamge using matlab code

hi for everyone in this site. pleas i need help in matlab ... i am work to cipher text in matlab using cipher algorithms. but i need to read image and convert it to binary number such as (255 ---- will be 11111111) and so on and when i convert it to binary will be used xor operation with key >>>

Answer 1

[Geoff Hayes]

mays - you don't need to convert the image into binary. Just use the MATLAB bit wise operations to manipulate the pixels of the image.

[mays afif]

thank you Geoff.... i have key in (binary) and i need cipher image by add image to key by XOR ... i didn't understand your explain... such as i have image (64 x 64 ) as name=A and key = K how can i ciphering image

thank you very much

i'm sorry for bothering

[Image Analyst]

binaryString = dec2bin(yourImage(row, column))