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Title

Worst case additive attack against quantization-based data-hiding methods

Authors
Perez-Gonzalez, Fernando
Published in Proceedings of SPIE Photonics West, Electronic Imaging 2005, Security, Steganography, and Watermarking of Multimedia Contents VII (EI120). San Jose (USA) - Jan 16-20 - SPIE. 2005
Abstract The main goal of this study consists in the development of the worst case additive attack (WCAA) for quantization-based methods using as design criteria the bit error rate probability and the maximum achievable rate of reliable communications. Our analysis is focused on the practical scheme known as a distortion compensation dither modulation (DC-DM). From the mathematical point of view, the problem of the worst case attack (WCA) design using probability of error as a cost function can be formulated as the maximization of the average probability of error subject to the introduced distortion for a given decoding rule. When mutual information is selected as a cost function, a solution of the minimization problem should provide such an attacking noise probability density function (PDF) that will maximally decrease the rate of reliable communications for an arbitrary decoder structure. The results show that within the class of additive noise attacks the developed attack leads to a stronger performance decrease for the considered class of embedding techniques than the AWGN or the uniform noise attacks.
Keywords Data hidingQuantizationDistortionModulation
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Research groups Computer Vision and Multimedia Laboratory
Multimodal Interaction Group
Stochastic Information Processing Group
Citation
(ISO format)
VILA FORCEN, Jose Emilio et al. Worst case additive attack against quantization-based data-hiding methods. In: Proceedings of SPIE Photonics West, Electronic Imaging 2005, Security, Steganography, and Watermarking of Multimedia Contents VII (EI120). San Jose (USA). [s.l.] : SPIE, 2005. https://archive-ouverte.unige.ch/unige:47944

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Deposited on : 2015-03-06

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