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A Genetic Algorithm Optimization Technique for Multiwavelet-Based Digital Audio Watermarking

By Kumsawat Prayoth

Abstract

<p/> <p>We propose a new approach for optimization in digital audio watermarking using genetic algorithm. The watermarks are embedded into the low frequency coefficients in discrete multiwavelet transform domain. The embedding technique is based on quantization process which does not require the original audio signal in the watermark extraction. We have developed an optimization technique using the genetic algorithm to search for four optimal quantization steps in order to improve both quality of watermarked audio and robustness of the watermark. In addition, we analyze the performance of the proposed algorithm in terms of signal-to-noise ratio, normalized correlation, and bit error rate. The experimental results show that the proposed scheme can achieve a good robustness against most of the attacks which were included in this study.</p

Topics: Electrical engineering. Electronics. Nuclear engineering, TK1-9971, Technology, T, DOAJ:Electrical and Nuclear Engineering, DOAJ:Technology and Engineering, Telecommunication, TK5101-6720, Electronics, TK7800-8360
Publisher: Springer
Year: 2010
OAI identifier: oai:doaj.org/article:3b169c0cfd5940e0b2130109b9d7dd6b
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