基于混沌优化的动态水印算法研究  

Dynamic watermarking algorithm based on chaotic optimization

作　　者：罗养霞[1,2] 房鼎益[2] 

机构地区：[1]西安财经学院信息学院,西安710127 [2]西北大学信息科学与技术学院,西安710069

出　　处：《中国科学技术大学学报》2012年第1期77-84,共8页JUSTC

基　　金：陕西省教育厅科研计划项目(11JK0987;2010JK554);陕西省科技厅自然科学基金研究项目(2011JM8016)资助

摘　　要：针对现有软件水印隐蔽差、鲁棒性低的问题,将混沌理论应用于软件水印算法中,基于混沌替换、混沌加密算法对动态图CT算法进行优化和改进,提高水印的隐蔽性和鲁棒性.在VC6.0环境下对C++软件实现基于混沌的动态水印算法(CBDW)原型系统,并以该实现为例进行分析.实验表明,该方法在保留原水印高数据率优点的同时,增强了其隐蔽性和鲁棒性.In order to improve the stealth and robustness of software watermarking, the chaos theory was applied to the software watermarking algorithm, mainly by optimizing and improving the dynamic graph CT algorithm based on chaos-replacement and chaos-encryption. Chaos-based dynamic watermarking algorithm （CBDW） was achieved under the VC6.0 C ＋＋ environment, and some analyses were conducted. Experimental results demonstrate that, while maintaining its advantage of high data rate, the proposed approach is effective in enhancing stealth and robustness of the original watermark.

关 键 词：软件水印 混沌理论 动态图水印 隐蔽性 鲁棒性 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]