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Optimization of Natural Watermarking Using Transportation Theory

Abstract : This article presents a new approach to use secure spread- spectrum watermarking in the Watermarked Only Attack (WOA) framework (the adversary owns several marked con- tents and wants to estimate the secret key). Because security of watermarking schemes relies on the distribution of marked contents in a private subspace, we use the transportation theory in order to derive a mapping that will minimize the global distortion of Natural Watermarking (NW) while keep- ing the same security level. Contrarily to another technique presented in [13], the embedding does not depend on com- putationally demanding pre-computed mapping. Moreover, we show that this method does not reduce the robustness of the classical NW scheme and enables to decrease the WCR by several dBs regarding former implementations. Tests are made on 2000 Gaussian signals.
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https://hal.archives-ouvertes.fr/hal-00437902
Contributor : Patrick Bas Connect in order to contact the contributor
Submitted on : Tuesday, December 1, 2009 - 4:38:46 PM
Last modification on : Tuesday, October 19, 2021 - 11:22:39 PM
Long-term archiving on: : Thursday, June 17, 2010 - 7:24:51 PM

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  • HAL Id : hal-00437902, version 1

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Benjamin Mathon, Patrick Bas, François Cayre, Benoît Macq. Optimization of Natural Watermarking Using Transportation Theory. ACM Multimedia and Security Workshop 2009, Sep 2009, Princeton NJ, United States. pp.1-8. ⟨hal-00437902⟩

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