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CORR
2008
Springer

Informed stego-systems in active warden context: statistical undetectability and capacity

8 years 9 months ago
Informed stego-systems in active warden context: statistical undetectability and capacity
Several authors have studied stego-systems based on Costa scheme, but just a few ones gave both theoretical and experimental justifications of these schemes performance in an active warden context. We provide in this paper a steganographic and comparative study of three informed stego-systems in active warden context: scalar Costa scheme, trellis-coded quantization and spread transform scalar sosta Scheme. By leading on analytical formulations and on experimental evaluations, we show the advantages and limits of each scheme in term of statistical undetectability and capacity in the case of active warden. Such as the undetectability is given by the distance between the stegosignal and the cover distance. It is measured by the KullbackLeibler distance.
Sofiane Braci, Claude Delpha, Rémy Boyer, G
Added 26 Dec 2010
Updated 26 Dec 2010
Type Journal
Year 2008
Where CORR
Authors Sofiane Braci, Claude Delpha, Rémy Boyer, Gaëtan Le Guelvouit
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