版权保护中的数字水印技术

随着万维网的迅速扩张，经营数字媒体的公司可以很廉价的向日益增长的客户群发布他们的产品，因此，数字水印作为数字媒体版权保护的有效手段，近年来在国际上引起了人们的极大兴趣，在探讨了版权保护中的数字水印的一般模型的基础上，介绍了现有的各种水印嵌入算法与检测算法。

Digital Watermark in Copyright Protection

With the proliferation of the World Wide Web, authors of digital media now have an inexpensive means to distribute their works to a growing audience. So as an effective method to provide copyright protection for digital media, digital watermarking has draw extensive attention in recent years. This paper introduces the origin, model and algorithms of digital watermarking. It also discusses a general model in digital watermarking in copyright protection, and introduces various existing watermark embedding algorithms and detection algorithms. In the end, this paper forecasts the application prospect of the digital watermarking.