[5027] in cryptography@c2.net mail archive
Eason/Kawaguchi stego
daemon@ATHENA.MIT.EDU (Russell Nelson)
Tue Jun 29 12:54:47 1999
From: Russell Nelson <nelson@crynwr.com>
Date: Tue, 29 Jun 1999 09:27:49 -0400 (EDT)
To: cryptography@c2.net
There's an EETimes article on Eason/Kawaguchi stego in the 6/28 issue.
They hide their bits in the most complex parts of the image -- where
neighboring pixels are most different from one another. Also, only a
few parameters are needed to retrieve the information, so anybody with
the appropriate detector and a few guesses can find the information.
Yes, that's right, it's only hidden from view, not from even the least
determined observer. So why not just call it watermarking? Because
(so they claim) watermarking is embedded everywhere in the image.
--
-russ nelson <rn-sig@crynwr.com> http://crynwr.com/~nelson
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