一种基于混沌序列的多幅图像隐藏算法  

Fast hiding technology for multiple digital image based on chaos sequences iterative blending

作　　者：张永红[1] 

机构地区：[1]渭南师范学院数学系,陕西渭南714000

出　　处：《计算机工程与应用》2008年第17期182-184,187,共4页Computer Engineering and Applications

基　　金：陕西省自然科学基金(the Natural Science Foundation of Shaanxi Province of China under Grant No.FC06121);陕西省教育厅项目(No. 07JK267) ;渭南师范学院基金项目(08YKF013)

摘　　要：给出了一种基于混沌序列的多幅图像隐藏算法。利用图像的迭代混合可以将多幅图像隐藏于一幅图像之中,借助Logis-tic混沌动力学系统过程既非周期又不收敛,且对初始条件敏感性,产生实数值混沌序列,作为隐藏算法的混合因子,提高了隐藏算法的安全性;为了进一步提高图像隐藏的安全性,对待隐藏图像进行基于象空间的置乱处理。实验结果证明,算法简单易行,安全性好。An algorithm of multiple digital image information hiding is presented.Based on chaos sequences,multiple digital images can be hided into another by using iterative blendlng,with the help of Logistic chaos dynamics,systematic process is nonperiod,non-convergence and sensitivity to the initial conditions,producing the real chaos sequence,being the blending factor of the hiding algorithm,and improving the security of the hiding algorithm.In order to improve the security of image hiding,the hided image should be dealed with scrambling based on pixel space.The numerical experimentations show that the hiding algorithm is efficient and safety.

关 键 词：数字图像 混沌序列 图像隐藏 迭代 置乱 

分 类 号：TN911.73[电子电信—通信与信息系统]