稳键性水印实现机理探析

Discussion on Implementation Mechanism of Robust Wartermarking

水印技术作为信息隐藏和知识产权保护的手段,正得到广泛的应用。为了保证隐藏信息的的安全性,需要对水印的稳键性进行研究。从水印嵌入模型和隐藏机理出发,研究稳键性水印的实现技术。对空域和变换域水印的嵌入算法进行比较,得到了具有良好稳键性的水印嵌入方案。在变换域中嵌入的信号可以分布到空域的所有像素上,与数据压缩标准兼容,对某些图像处理的稳键性更强。

The watermarking technology as a method of information hiding and intellectual property protection,which has a widely application.To ensure the security of information hiding,the robustness of watermarking should be researched.According to embedded model and hiding mechanism of the watermarking,technique of robust watermarking is researched.By comparing embedded algorithm of space and tronsform domain,a good scheme is gained.In the transform domain,the embedded signal can be distributed on the pixel of space domain,it has good robustness on image processing.