【摘要】 随着多媒体技术和网络技术的广泛应用，对图像、音频、视频等多媒体内容的保护成为迫切需要解决的问题。数字水印技术作为版权保护和安全认证的有力工具，已引起人们广泛的关注。简要介绍了数字水印技术的原理及基于该技术提出的版权认证方案在WWW上的应用。更多还原

【Abstract】  With the development of computer networks and multimedia technology copyright protection and authentication becomes more and more urgent． This paper describes the principles of digital watermarking technology and a general copyright watermarking scheme is proposed to identify the ownership of copyrighted materials through the World Wide Web．更多还原