"Lucas" <[EMAIL PROTECTED]> wrote: > >2) I want to put a number into the picture for encryption(replace least >significant bit (LSB) of image intensity with message bit).
What formats are your images? Remember that JPEG images are compressed when they are written. It is rather unlikely that your low-order bit changes will survive the compression process. There is lots and lots of research on this subject. It's called "steganography" and "digital watermarking". Google is your friend. -- Tim Roberts, [EMAIL PROTECTED] Providenza & Boekelheide, Inc. -- http://mail.python.org/mailman/listinfo/python-list
