"Adaptive quantization watermarking"

Job C. Oostveen, A.A.C. Kalker and Marius Staring


In this paper we study the use of an adaptive quantization step size, instead of a fixed one, for the Scalar Costa Scheme. We propose an adaptation method based on Weber's law. This allows for a more effective embedding, which is also shown to render the watermark robust against sample value scaling. A model for the bit error probability due to the estimation of the adaptive quantization step size at the detector is derived, which provides insight in the required precision of estimating the quantization step size in the detector.



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Copyright © 2004 by the authors. Published version © 2004 by SPIE. Personal use of this material is permitted. However, permission to reprint or republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works, must be obtained from the copyright holder.


BibTeX entry

author = "{Job C. Oostveen and A.A.C. Kalker and Marius Staring}",
title = "{Adaptive quantization watermarking}",
booktitle = "{Security, Steganography, and Watermarking of Multimedia Contents VI}",
editor = "{Edward J. Delp III and Ping W. Wong}",
address = "{San Jose, California, USA}",
series = "{Proceedings of SPIE}",
volume = "{5306}",
pages = "{296 - 303}",
month = "{January}",
year = "{2004}",

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