摘要
根据零水印概念,提出一种基于小波和混沌的多重水印零嵌入算法.该算法利用小波零树结构构造匹配矩阵,然后用其加载已由混沌空域置乱的多重二值图像水印.算法实现了多重水印的零嵌入,从根本上保证了水印的不可见性,并能够进行分级盲检测.实验表明,该方法鲁棒性较强,安全性良好,具有可靠性和可行性.
According to zero-watermarking, a zero-embedding algorithm for multiple watermarks was proposed based on wavelet and chaos. Matching matrixes were structured with wavelet zerotree structure, and used to load multiple binary watermarks scrambled by chaotic sequences. The zero-embedding of multiple watermarks ensured the watermarks＇ invisibility thoroughly, and could implement a blind detection by stage. Experimental results show that the technique has stronger robustness, better security, dependability and feasibility.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
2006年第8期799-802,共4页
Journal of University of Science and Technology Beijing
基金
黑龙江省自然科学基金资助项目(No.F0211)
关键词
多重水印
嵌入算法
小波零树结构
混沌置乱
multiple watermarks
embedding algorithm
wavelet zerotree structure
chaos scrambling
