title: To substitute lsb value of rgb image with character
body: <p>I want to substitute LSB of rgb image with character. I have done it for gray sacle image using bitset and bitget. Can I use same logic for rgb image?
  Here is part of code which I have used:</p>
  
  <p>stego=zeros(size(img))
  stego=bitset(stego,1,lsp)</p>
  
  <p>Where img is cover image and lsp is binary message. I have then merge bitplanes by:</p>
  
  <p>stego=bitset(stego,2,bitget(img,2))</p>
  
  <p>Up to 8th plane to get the strgo image.
  How can I build the same logic for RGB image? Please guide me.</p>