Dear Preeti Singh,

Look the link, may be useful.

http://www.codeforge.com/s/0/lsb-substitution-matlab-code

Regards, Shafagat

@luay I want to replace 2-bit LSB (rightmost bits) by embedding 2-bit of the message.

In Matlab with character and  uint8 or 16 etc .

You can do this in for /while loop

tmp='1001';  % this is character string

t1=strcat(tmp,'10');

remember to convert it back to integer (that's another story )

Or you can take double and limit the range of #s using bitor / bit manipulations

p1=9;

p2=41;

p3=bitor(p1,p2)

Take care to check for ranges