AFAIK best algorithms for image forensics has Mahdian Babak's company Imagemetry.
http://www.utia.cas.cz/node/467/Mahdian/Babak http://imagemetry.com/ Speaking of noise inconsistencies, http://library.utia.cas.cz/separaty/2009/ZOI/saic-using%20noise%20inconsistencies%20for%20blind%20image%20forensics.pdf Rob, grandpa of Ryan, Trevor, Devon & Hannah napsal(a): > An interesting analysis of a graphic recently used by Victoria's Secret in > their > advertising. This gives chapter and verse of the techniques used, and > results > obtained, demonstrating the ability to determine if an image has been > altered, and > even which parts of an image have been modified, and how. > > http://www.hackerfactor.com/blog/index.php?/archives/322-Body-By-Victoria.html > > I find this particularly interesting because of the apparently widely held > belief that > steganography is "undetectable" without comparision to the original image. > Most > of the "Photoshop disasters" are glaringly obvious to the naked eye. As this > demonstrates, analysis and detection of modification is easily accomplished, > even > when the differences are not apparent to the human eye. (Well, except for > the > straps. That was pretty stupid ...) > > ====================== (quote inserted randomly by Pegasus Mailer) > rsl...@vcn.bc.ca sl...@victoria.tc.ca rsl...@computercrime.org > I live in my own little world, but it's OK, they know me here. > victoria.tc.ca/techrev/rms.htm blog.isc2.org/isc2_blog/slade/index.html > http://blogs.securiteam.com/index.php/archives/author/p1/ > http://twitter.com/NoticeBored http://twitter.com/rslade > _______________________________________________ > Fun and Misc security discussion for OT posts. > https://linuxbox.org/cgi-bin/mailman/listinfo/funsec > Note: funsec is a public and open mailing list. > > _______________________________________________ Fun and Misc security discussion for OT posts. https://linuxbox.org/cgi-bin/mailman/listinfo/funsec Note: funsec is a public and open mailing list.
