摘要
给出了一种基于混沌序列的图像隐藏算法。利用图像的迭代混合可以将一幅图像隐藏于另一幅图像之中,借助Logi-stic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 digital image information hiding is presented. Based on chaos sequences, an image is hided into another by using iterative blending, with the help of Logistic chaos dynamics, systematic process is non-period, 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 is deal with scrambling based on pixel space. The numerical experimentations show that the hiding algorithm is efficient and safety.
出处
《计算机工程与设计》
CSCD
北大核心
2007年第4期879-881,共3页
Computer Engineering and Design
基金
国家自然科学基金项目(60372072)
渭南师范学院基金项目(07YKZ024)
关键词
数字图像
混沌序列
图像隐藏
迭代
置乱
digital image
chaos sequence
image hiding
iterative
scrambling
