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 <[EMAIL PROTECTED]> http://crynwr.com/~nelson
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