On the tradeoff between security and robustness of the Trellis Coded Quantization scheme

Sofiane Braci 1 Remy Boyer 2 Claude Delpha 1
2 Division Signaux - L2S
L2S - Laboratoire des signaux et systèmes : 1289
Abstract : The steganographic security in the Cachin's work is defined as the statistical invisibility between the host signal and its marked version. At contrary, the robustness to an attack is not a prime goal. In robust watermarking, this is exactly the inverse. The scalar costa scheme (SCS) is a typical example of this fact. Indeed, this scheme is robust to additive white Gaussian noise (AWGN) attack but is drastically insecure since its probability density function for Gaussian host signal is severely discontinuous. An improved scheme has been proposed by Guillon et al. which increases the security to the detriment of the robustness. In this paper, we propose a new watermarking scheme, based on the combination of the spread transform (ST) and the trellis coded quantization (TCQ) which is secure and robust to AWGN attack.
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https://hal-supelec.archives-ouvertes.fr/hal-00871165
Contributor : Claude Delpha <>
Submitted on : Wednesday, October 9, 2013 - 1:05:42 AM
Last modification on : Thursday, December 5, 2019 - 5:26:02 PM

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Sofiane Braci, Remy Boyer, Claude Delpha. On the tradeoff between security and robustness of the Trellis Coded Quantization scheme. IEEE ICASSP 2008, Mar 2008, Las Vegas, Nevada, United States. pp.1733 - 1736, ⟨10.1109/ICASSP.2008.4517964⟩. ⟨hal-00871165⟩

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