Characterization of geometric distortions attacks in robust watermarking

Xavier Desurmont; Jean-Francois Delaigle; Benoit Macq

doi:10.1117/12.523635

22 June 2004 Characterization of geometric distortions attacks in robust watermarking

Xavier Desurmont, Jean-Francois Delaigle, Benoit Macq

Proceedings Volume 5306, Security, Steganography, and Watermarking of Multimedia Contents VI; (2004) https://doi.org/10.1117/12.523635
Event: Electronic Imaging 2004, 2004, San Jose, California, United States

Abstract

Robust image watermarking algorithms have been proposed as methods for discouraging illicit copying and distribution of copyright material. Having robustness to pixels modifications in mind, many watermarking designers use techniques coming from the communications domain such as spread spectrum to embed hidden information, be it in the spatial or in the transform domain. There exist numerous attacks dedicated to make watermarking algorithms inefficient that degrade images by geometric distortions. One solution to counter them is to add synchronization information. In this paper we present an analysis of this type of distortions and we propose a metric to estimate the distortion undergone by an image. This metric is content independent, invariant to global translation, rotation and scaling, which can be considered as non-meaningful transformations. To demonstrate the relevance of this metric, we compare some of its results with the subjective degradation of the image produced by the Stirmark software.

Citation Download Citation

Xavier Desurmont, Jean-Francois Delaigle, and Benoit Macq "Characterization of geometric distortions attacks in robust watermarking", Proc. SPIE 5306, Security, Steganography, and Watermarking of Multimedia Contents VI, (22 June 2004); https://doi.org/10.1117/12.523635

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