Tangential sensitivity analysis of watermarks using prior information

John W. Earl

doi:10.1117/12.704704

1 March 2007 Tangential sensitivity analysis of watermarks using prior information

John W. Earl

Proceedings Volume 6505, Security, Steganography, and Watermarking of Multimedia Contents IX; 650519 (2007) https://doi.org/10.1117/12.704704
Event: Electronic Imaging 2007, 2007, San Jose, CA, United States

Abstract

A novel sensitivity analysis attack is introduced in the context of the BOWS (Break Our Watermarking System) contest.¹ The method follows the boundary of the detection region, rather than directly estimating the normal to the boundary, so it is applicable even if the boundary is not well approximated by a hyperplane. To improve efficiency, we employ search directions scaled using a model of perceptual masking.

Citation Download Citation

John W. Earl "Tangential sensitivity analysis of watermarks using prior information", Proc. SPIE 6505, Security, Steganography, and Watermarking of Multimedia Contents IX, 650519 (1 March 2007); https://doi.org/10.1117/12.704704

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