数字水印技术及其攻击分析

Digital watermarking techniques and analysis on its attack

如何保护数字产品的版权在多媒体信息交流日益广泛和网络日益普及的今天受到人们的高度重视 ,成为一个迫切需要解决好的课题。作为信息隐藏技术的一个重要分支 ,数字水印技术将成为保护数字作品版权的重要手段。文章对多媒体数字水印技术的原理及其基本特征、现有方法作了详细的论述 ,重点分析了几种数字水印算法方案和攻击手段 ,指出了应用中存在的问题 ,并展望了未来研究方向。

How to provide copyright protection for digital products has drawn extensive attention in recent years since the broadening of multi-media information communication and the population of network,which has become an important subject to be solved.As a important branch of information hiding,digital watermarking has become an essential way to protect digital copyright.This paper presents details of the principle,fundamental characteristics,existing algorithms and application fields of digital watermarking,makes emphasis on the analysis on several digital watermarking algorithms and its attack way,points out some problems in application,and foresights the future research prospect