数字水印技术

数字技术与互联网络的发展对传统的版权保护手段提出了挑战，作为一个解决数字产品版权保护的新方法，数字水印技术在最近几年引起人们的极大关注，目前已提出了多种数字水印方案，本文首先介绍了数字水印的主要应用方面，而后描述了这些方案所共有的总体框架与特性，介绍了数字水印的生成、嵌入与恢复方法，最后简单分析了数字水印的研究方向与应用前景以及数字水印方法可能存在的一些问题。

Digital Watermarking Tehcniques

With the development of Internet and digital technology, tradition copyright protection has faced new challenge. As a new method for copyright protection, digital watermarking technique has attracted a lot of attention and many schemes are presented are in recent years. Firstly, the paper introduces the applications of digital water marking techniques, then describes the general frame and performance of these techniques as well as water marking generating, embedding and recovery, finally analyses the research and application trends, as well as some possible problems of water marking technique.