图像水印系统有效性的评价框架

Evaluation of the Validity of Image Watermarking

介绍了信息隐藏分析技术的研究进展 ,在对典型的图像水印基准测试工具软件StirMark ,Checkmark和Optimark的功能进行比较的基础上 ,讨论了水印系统的安全性 ;提出一种水印系统满足有效性的评价框架 ,并给出了一个基本的必要条件 ;进而讨论了水印系统的鲁棒性、嵌入量和质量之间的变换关系 ;对隐藏分析和主动攻击给水印嵌入技术带来的公开问题以及水印嵌入系统可能出现的研究热点也给予了讨论 .

This paper introduces the research methods of Steganalysis of Watermark techniques. By the comparison of several watermark benchmark tools, which are Stirmark, Checkmark and Optimark, authors discuss the security of watermark system, present an evaluation that satisfies the validity, and give a basic necessary condition to judge the validity of image watermarking. Authors also discuss the restrictive relations of robustness, payload and quality in watermark system. The public problems in watermark embedding techniques, which arc brought by steganalysis and active attack, and the future directions in watermark embedding system are also discussed.