摘要
针对水印技术中的难题——数字图像水印的不可见性和鲁棒性之间的矛盾,提出了一种基于时间戳认证的零水印方案,及其具体的DCT域内的零水印算法,进行了仿真实验测试,结果表明该方案对有损压缩、加噪、缩放、剪切等图像操作和攻击具有很强的鲁棒性,同时还具有真正意义上的不可见性和很高的安全性。
In order to solve the contradiction between invisibility and robustness This paper has proposed a zero-watermark scheme based on time stamp authentication. The experiment is practiced in DCT and the results show that it has high security and robust to the operations of compression with loss, adding noise, resizing and cutting and so on, besides that, which is real imperceptible and high security.
出处
《微计算机信息》
北大核心
2007年第18期289-290,310,共3页
Control & Automation
基金
国家自然科学基金项目(60351049)
关键词
时间戳
版权保护
DCT域
零水印
Time stamp, copyright protection, DCT, zero-watermark
