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.
出处
《计算机应用》
CSCD
北大核心
2008年第7期1792-1794,共3页
journal of Computer Applications
关键词
小波对比度
HVS特性
小波变换
彩色水印
wavelet contrast
Human Visual System （HVS） speciality
wavelet transform
color watermarking
作者简介
刘志军（1958-），男，河北清苑人，副教授，硕士，主要研究方向：网络与信息安全、软件工程。（lzhijun988@163．com）
