12 Mar
1993
12 Mar
'93
8:53 a.m.
I think color images, as opposed to mapped, would be the way to go for steganography. More room, and nobody expects them to compress.
Yeah; but even if we're talking full 24-bit images, we're going to have problems. Once 24-bit displays become standard, I really doubt that there will be many images stored in a non-lossy format. And once you try to hide data in a lossy encoding scheme, you run into a lot (though not all) of the problems you have with colormaps. It would be a lot easier to hide data in an image if one had a control-image (the original) as well as the altered-image (the one holding the message), but this defeats half the niftiness of trying to do things this way.
Eli ebrandt@jarthur.claremont.edu
-J.