文档介绍：音频数字水印技术的研究与应用
李武民
(吉首大学信息科学与工程学院,湖南吉首 416000)
摘要
随着音频数字媒体盗版、侵权事件的日益增多,音频数字媒体的版权问题日益受到人们关注。数字水印是解决音频媒体版权保护问题的重要手段,应用于版权保护的数字水印要求较高的鲁棒性,随着各种攻击技术和方法的发展,如何提高音频数字水印方法的抗攻击能力,尤其是提高音频水印的鲁棒性成为一个亟待解决的问题。本文针对应用于版权保护的音频数字水印算法进行了研究,介绍了音频数字水印技术及其主要算法,音频数字版权保护系统的基本框架。分析了一种基于离散小波的算法,使用MATLAB对其水印的嵌入与提取进行仿真、检测。结果表明:离散小波算法对提高水印的鲁棒性方面具有很强的优势。
关键词:音频数字;版权保护;数字水印;MATLAB仿真;鲁棒性;
Audio digital watermark technology research and application
Li Wuming
(college of information science and engineering,Jishou University,jishou hunan 416000)
Abstract
With the audio digital media piracy violations, increase, audio digital media copyright problems have been more people to pay attention to. Digital watermarking is solve audio media copyright protection of the important method, used in copyright protection for digital watermarking high robustness, with all kinds of attack techniques and methods of development, how to improve the audio digital watermark method ability against the attack, especially improve audio watermarking robustness e a urgent problem to be solved. This paper applied to the protection of the copyright audio digital watermark algorithm is studied, this paper introduces the audio digital watermark technology and the main algorithm, audio digital copyright protection system of the basic framework. Analysis based on discrete wavelet algorithm, using MATLAB to the watermark embedding and extraction simulation and testing. The results show that the discrete wavelet algorithm to improve the robustness of waterma
rking has a strong advantage.
Key words: Audio digital;The copyright protection;Digital watermarking;MATLAB simulation; Robustness;
目录
第一章绪论 1
1
1
2
第二章音频数字水印技术 3
3
音频数字水印的定义 3
音频数字水印的特性 4
4
4
5
5
5
5
现状分析 5
6
第三章音频数字水印算法的主要算法介绍 8
8
8