摘要
介绍了数字水印技术的产生过程及其特点:透明性、鲁棒性和安全性,比较了数字水印与密码学的差别,数字水印通过在数字信息产品中嵌入不可见信息来标识其所有者.分析了数字水印技术的现状,主要有两大类水印嵌入方法:基于空间域和基于变换域.根据水印传输载体的不同对数字水印在版权保护方面的应用进行了分类,基于对数字水印的学习研究,对数字水印技术的发展进行了展望,数字水印的应用领域将会越来越大.
In this paper, the background and characteristics of digital watermark, namely, transparency, robustness, security, are introduced. Differences between digital watermark and cryptology are compared. Digital watermark technology allows embedding an imperceptible mark in multimedia data to identify the owner copyright. The research status of digital watermark techniques is analyzed. There are two kinds of watermark algorithms： one based on spatial domain and the other transform domain. The application in copyright protection of digital watermark is classified by the difference of transmission carrier. Finally, based on the study of digital watermark, the prospect of further research is predicted and the application of digital watermark will be widened.
出处
《渭南师范学院学报》
2005年第5期47-49,共3页
Journal of Weinan Normal University
关键词
数字水印
信息隐藏
版权保护
digital watermark
information hiding
copyright protection
