基于小波域的自适应盲检彩色水印算法  

Blind color watermarking algorithm based on self-adaptation of wavelet domain

作　　者：刘志军[1] 

机构地区：[1]沧州师范专科学校计算机系,河北沧州061001

出　　处：《计算机应用》2008年第7期1792-1794,共3页journal of Computer Applications

摘　　要：提出了一种新颖的基于小波域对比度与HVS特性自适应盲检彩色水印算法。主要包括根据小波对比度和HVS特性对嵌入强度因子的自适应计算;彩色水印的嵌入与盲提取算法(采用了Arnold变换置乱,交织和BCH编码技术)。利用Matlab 6.5平台进行了算法的攻击与无攻击实验。实验结果表明:该算法在无攻击的情况下具有较强的透明性和鲁棒性;而在添加噪声、中值滤波、剪切、JPEG压缩攻击等的情况下具有较好的鲁棒性,在保护多媒体数据版权方面具有较高的实用价值。This paper proposed a novel blind color watermarking algorithm based on self-adaptation of wavelet contrast and HVS speciality. It mainly includes the self-adaptation calculation of the factor of embedding intensity on the basis of wavelet contrast and HVS speciality; color watermarking embedding and blind extracting algorithm （using Amold transform, interweaving and BCH coding technology）. Experiments of attack and non-attack were carried out in the Matlab 6.5. The experimental results show that the algorithm has stronger invisibility and robustness on non-attack. It has better robustness on the common watermarking attack such as noise adding, middlefilter, croping, JPEG compression and so on; it has higher value on the multimedia copyright protection.

关 键 词：小波对比度 HVS特性 小波变换 彩色水印 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]