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Proceedings Paper

Tangential sensitivity analysis of watermarks using prior information
Author(s): John W. Earl
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Paper 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.

Paper Details

Date Published: 1 March 2007
PDF: 12 pages
Proc. SPIE 6505, Security, Steganography, and Watermarking of Multimedia Contents IX, 650519 (1 March 2007); doi: 10.1117/12.704704
Show Author Affiliations
John W. Earl, Cambridge Univ. (United Kingdom)


Published in SPIE Proceedings Vol. 6505:
Security, Steganography, and Watermarking of Multimedia Contents IX
Edward J. Delp; Ping Wah Wong, Editor(s)

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