From: Silvan delaney (silvandelaney at domain eircom.net)
Date: Thu 20 Sep 2001 - 14:49:26 IST
20/09/2001 12:11:57, Niall O Broin <niall at domain linux.ie> wrote
so what is the answer in view to my question than?
>Except that most (no, make that all) image steganographic systems break when
>you apply certain filters to the image e.g Gaussian blur, or scale and
>recompress as JPEG. I bluntly say all systems, because for any particular
>kind of steganography, you can come up with some kind of filter which will
>kill it without making much more visible difference to the image than the
>original steganography did.
>Irish Linux Users' Group: ilug at domain linux.ie
>http://www.linux.ie/mailman/listinfo/ilug for (un)subscription information.
>List maintainer: listmaster at domain linux.ie
This archive was generated by hypermail 2.1.6 : Thu 06 Feb 2003 - 13:12:13 GMT