基于小波变换的数字音频水印算法研究与实现  

Research and Implementation of Digital Audio Watermarking Algorithm Based on Wavelet Transform

作　　者：严春来[1] 

机构地区：[1]攀枝花学院数学与计算机学院,四川攀枝花617000

出　　处：《电脑编程技巧与维护》2014年第8期100-101,105,共3页Computer Programming Skills & Maintenance

摘　　要：随着数字多媒体技术及互联网技术的迅猛发展,图像、视频和音频等多种形式的多媒体数字作品的创作、存储和传输都变得极其便利,但其版权保护也受到严重威胁。基于对数字水印技术的研究,提出了一种基于小波变换的频域音频数字水印算法。该算法利用混沌序列对水印信息进行加密,通过小波变换把音频信号映射到频域,将水印信息嵌入到音频信号的精细分量上。通过实验验证,该算法具有良好的感知透明性、安全性和鲁棒性。With the rapid development of digital multimedia technology and Internet technology, the creation, storage and transmission of multimedia digital product （such as： images, video, audio and other forms） has become extremely convenient, but its copyright protection has seriously threatened. This essay based on the research of digital watermarking technology, propose a frequency-domain audio digital watermarking algorithm based on Wavelet Transform. The algorithm to encrypt watermark information by using the chaotic sequence, mapping the audio signal to the frequency domain thought wavelet transform, and embedded watermarking information into the precise component of the audio signal. Through experi- mental verification, this algorithm has good perceptual transparency, robustness and security.

关 键 词：数字音频水印 鲁棒性 感知透明性 安全性 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]