数字认证水印的防伪技术研究

随着计算机网络技术的发展,多媒体信息依靠自身的优势加快了知识和信息的交流与传播。但与此同时,也产生了一些对多媒体信息恶意篡改、攻击、伪造不法行为。数字水印技术,可以在不能被人的知觉系统觉察情况下,将一些标志性的信息嵌入媒体中,从而在不影响多媒体信息欣赏的情况下,起到防伪的效果。

The Research on Anti-counterfeiting Techniques of Digital Watermarking

The digital media has become a main way for information communication along with the popularization of internet and the development of multimedia techniques,people can get almost information through the internet.But this gives rise to serious problems including wide spread copyright violation,illegal copying,easy forging etc.How to provide copyright protection and implement covert communication has drawn extensive attention in recent years.The digital watermarking is an important Anti-counterfeiting Techniques,which is a process of embedding a watermarking into various digital works,to acquire Anti-counterfeiting effect without destroy the appreciation of digital media.