基于小波系数能量分析的数字音频盲水印算法  

An Algorithm of the Blind Digital Audio Watermarkjng Based on Energy Analysis of Wavelet Coefficient

作　　者：任克强[1] 李辉环[1] 曹锋[2] 

机构地区：[1]江西理工大学信息工程学院,江西赣州341000 [2]唐山学院,河北唐山063000

出　　处：《计算机安全》2009年第12期45-47,共3页Network & Computer Security

摘　　要：设计了一种基于小波系数能量分析的数字音频盲水印算法。通过修改离散小波变换获得的低频系数,嵌入混沌加密后水印序列。实验结果表明,水印具有较好的鲁棒性和不可感知性,能有效抵抗低通滤波、重采样、噪声干扰、MP3压缩等常见的攻击,且水印的提取不需要原始音频信号。A blind watermarking algorithm which is based on energy analysis about low frequency coefficient of DWT is designed. Experimental results shows that the imbedded watermarking has good imperceptibility and robustness,it can against attacks such as low pass filtering、 resampling、Gaussian noise、MP3 compression, and so on,and the imbedded watermark can be extracted without original audio signa1.

关 键 词：音频水印 混沌加密 离散小波变换 低频系数 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术] TN912.3[自动化与计算机技术—计算机科学与技术]