16 February 2006 Rotation/scale insensitive spread spectrum image watermarking game
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Using electronic watermarks as copyright protection for still images requires robustness against geometrical attacks. In this paper we propose a watermarking scheme that is robust to rotation and scaling distortions. The watermark detection is performed in a 1-D invariant signature whereas the embedding process is performed adding a watermark signal in the DFT domain. This embedding procedure allows the watermarking signal to be shaped in the frequency domain. This shaping is determined solving a game opposing the watermarker and the attacker. Statistically significant roc curve test results under several attacks are presented.
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Maxime Ossonce, Gaëtan Le Guelvouit, Claude Delpha, Pierre Duhamel, "Rotation/scale insensitive spread spectrum image watermarking game", Proc. SPIE 6072, Security, Steganography, and Watermarking of Multimedia Contents VIII, 60720T (16 February 2006); doi: 10.1117/12.643161; https://doi.org/10.1117/12.643161

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