Some theoretical aspects of watermarking detection

Teddy Furon 1 Julie Josse 1 Sandrine Le Squin 1
1 TEMICS - Digital image processing, modeling and communication
IRISA - Institut de Recherche en Informatique et Systèmes Aléatoires, Inria Rennes – Bretagne Atlantique
Abstract : This paper considers watermarking detection, also known as zero-bit watermarking. A watermark, carrying no hidden message, is inserted in content. The watermark detector checks for the presence of this particular weak signal in content. The paper aims at looking to this problem from a classical detection theory point of view, but with side information enabled at the embedding side. This means that the watermarking signal is a function of the host content. Our study is twofold. The first issue is to design the best embedding function for a given detection function (a Neyman-Pearson detector structure is assumed). The second issue is to find the best detection function for a given embedding function. This yields two conditions, which are mixed into one ‘fundamental' differential equation. Solutions to this equation are optimal in these two senses. Interestingly, there are other solutions than the regular quantization index modulation scheme. The JANIS scheme, for instance, invented in a heuristic manner several years ago, is justified as it is one of these solutions.
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Communication dans un congrès
E. Delp and P. W. Wong. Security, Steganography, and Watermarking of Multimedia Contents VIII, Jan 2006, San Jose, CA, USA, United States. 6072, 2006, Proc. SPIE-IS\&T Electronic Imaging
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  • HAL Id : inria-00083370, version 1

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Teddy Furon, Julie Josse, Sandrine Le Squin. Some theoretical aspects of watermarking detection. E. Delp and P. W. Wong. Security, Steganography, and Watermarking of Multimedia Contents VIII, Jan 2006, San Jose, CA, USA, United States. 6072, 2006, Proc. SPIE-IS\&T Electronic Imaging. 〈inria-00083370〉

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