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

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dc.creatorBraci, Sofiane
dc.creatorDelpha, Claude
dc.creatorBoyer, Rémy
dc.creatorGuelvouit, Gaëtan Le
dc.date2008-11-28
dc.date.accessioned2026-07-07T12:06:21Z
dc.date.available2026-07-07T12:06:21Z
dc.descriptionSeveral 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 Costa 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 stego-signal and the cover distance. It is measured by the Kullback-Leibler distance.
dc.description6 pages, 8 figures
dc.identifierhttps://arxiv.org/abs/0811.4697
dc.identifierhttp://arxiv.org/abs/0811.4697
dc.identifierProc. IEEE Conf. on Multimedia Signal Processing, Cairns, Australia, Oct. 2008
dc.identifierdoi:10.1109/MMSP.2008.4665167
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/208630
dc.subjectInformation Theory
dc.subjectMultimedia
dc.titleInformed stego-systems in active warden context: statistical undetectability and capacity
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