数字水印技术的研究

Research of Digital Watermark

数字水印作为一种信息安全技术,是在数字信息中加入不可见的标记,是利用信息隐藏技术来实现对数字产品版权的保护、真伪的鉴定及保障多媒体数据安全的一种新技术。从空域和变换域算法对数字水印技术进行了综合分析,并总结了数字水印的稳健性攻击方法,以期进一步设计出能抵抗各种攻击的稳健的水印算法。

Digital watermark as an information safety technique is a new technique, in which a unseen mark is added into digital information to protect the copyright of digital products, appraise truth of products and protect the safety of multimedium data by u sing data hiding technique. Airspace and exchange algorithms are used to integratedly analyze the digital watermark technique, and summarize the robust attacking methods of the watermark for the purpose of further design of robust watermark algorithms for resistance against attacks.