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Proceedings Paper

A perceptually driven hybrid additive-multiplicative watermarking technique in the wavelet domain
Author(s): Florent Autrusseau; Sylvain David; Vinod Pankajakshan; Patrizio Campisi
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Paper Abstract

This paper presents a hybrid watermarking technique which mixes additive and multiplicative watermark embedding with emphasis on its robustness versus the imperceptibility of the watermark. The embedding is performed in six wavelet sub-bands using independently three embedding equations and two parameters to modulate the embedding strength for multiplicative and additive embedding. The watermark strength is independently modulated into distinct image areas. Specifically, when a multiplicative embedding is used, the visibility threshold is first reached near the image edges, whereas using an additive embedding technique the visibility threshold is first reached into the smooth areas. A subjective experiment has been used to provide the optimal watermark strength for three distinct embedding equations. Observers were asked to tune the watermark amplitude and to set the strength at the visibility threshold. The experimental results showed that using an hybrid watermarking technique significantly improves the robustness performance. This work is a preliminary study for the design of an optimal wavelet domain Just Noticeable Difference (JND) mask.

Paper Details

Date Published: 10 February 2011
PDF: 7 pages
Proc. SPIE 7880, Media Watermarking, Security, and Forensics III, 78800B (10 February 2011); doi: 10.1117/12.872393
Show Author Affiliations
Florent Autrusseau, IRCCyN-IVC, CNRS, Univ. de Nantes (France)
Sylvain David, IRCCyN-IVC, CNRS, Univ. de Nantes (France)
Vinod Pankajakshan, IRCCyN-IVC, CNRS, Univ. de Nantes (France)
Patrizio Campisi, Univ. degli Studi di Roma Tre (Italy)


Published in SPIE Proceedings Vol. 7880:
Media Watermarking, Security, and Forensics III
Nasir D. Memon; Jana Dittmann; Adnan M. Alattar; Edward J. Delp, Editor(s)

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