Transform based additive data hiding based on a hierarchical prior

Authors:
Antonis Mairgiotis;George Stylios
Affiliations:
School of Medicine, Dept. of Hygiene and Epidemiology, Univ. of Ioannina, School of Medicine, Ioannina, Greece and Dept. of Applications of Inf. Techn. in Management and Economics, Multimedia Lab, ...;Department of Applications of Information Technology in Management and Economics, Multimedia Lab, Technological Educational Institute of Ionian Islands, Lefkada, Greece and Department of Computer ...
Venue:
ECC'11 Proceedings of the 5th European conference on European computing conference
Year:
2011

Citing 9
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Abstract

This work aims at additive watermark detection using a hierarchical prior with two levels in the DWT (Discrete Wavelet Transform) domain. Using this prior we construct a new test statistic which exhibits comparable performance with regard to other state of the art methods. The experimental results on known watermark images demonstrates the high detection sensitivity of the proposed prior in the transform domain along with its improved robust properties.