基于定性映射的数字音频水印算法

广西师范大学学报（自然科学版） ›› 2011, Vol. 29 ›› Issue (2): 200-204.

基于定性映射的数字音频水印算法

周炎岩, 冯嘉礼

上海海事大学信息工程学院,上海201306

收稿日期:2011-05-15 发布日期:2018-11-19
通讯作者: 冯嘉礼(1947—),男,湖南衡阳人,上海海事大学教授,博导。E-mail:jlfeng@shmtu.edu.cn
基金资助:
国家自然科学基金资助项目(60075016)

Algorithm of Digital Audio Watermarking Based on Qualitative Mapping

ZHOU Yan-yan, FENG Jia-li

College of Information Engineering,Shanghai Maritime University,Shanghai 201306,China

Received:2011-05-15 Published:2018-11-19

摘要/Abstract

摘要： 在将Harr小波归结为两定性映射的差的基础上,本文提出一种基于定性映射小波变换和均值量化理论的数字音频水印算法。本算法在一段数字音频文件中隐藏一幅对于听觉不可感知的二值图像。在图像预处理阶段,引入了基于极化恒等式的数字图像加密算法,大大加强了算法的安全性。利用人类听觉特性,通过定性映射诱导的小波,将水印信号嵌入到经过处理的小波变换的低频系数中。仿真实验表明:所提出的算法具有较强的鲁棒性和不可感知性,并能抵御常见的各种攻击。

关键词: 数字音频水印, 定性映射, 离散小波变换, 均值量化

Abstract: An audio watermarking algorithm based on mean quantization and qualitative mapping wavelet is presented.And the Harr wavelet is attributed to the difference of two qualitative mapping.The main idea of the method is that a binary image is embeded into the original audio signals.In the preprocessing step,an image processing algorithm is used based on polarization identity toimprove the security of the method.According to the characteristics of human auditory system and using the wavelet induced by qualitative mapping,the watermarksignals are embedded into the treated lower coefficient.Simulation results showthat the algorithm is of good imperceptibility and robustness,and can resist various signal processing manipulations.

Key words: digital audio watermarking, qualitative mapping, discrete wavelet transform (DWT), mean quantization

中图分类号:

TP309.2

周炎岩, 冯嘉礼. 基于定性映射的数字音频水印算法[J]. 广西师范大学学报（自然科学版）, 2011, 29(2): 200-204.

ZHOU Yan-yan, FENG Jia-li. Algorithm of Digital Audio Watermarking Based on Qualitative Mapping[J]. Journal of Guangxi Normal University(Natural Science Edition), 2011, 29(2): 200-204.

参考文献

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