基于混沌序列的数字图像置乱算法  

A Digital Image Scrambling Algorithm Based On Chaotic Sequences

作　　者：赵玉霞[1] 

机构地区：[1]商洛学院计算机科学系,陕西商洛726000

出　　处：《商洛学院学报》2009年第2期33-37,共5页Journal of Shangluo University

摘　　要：混沌序列具有易生成性,对初始条件强敏感性,可完全重现性等特点,基于以上特性提出一种基于混沌序列的图像置乱算法。算法同时采用Logistic映射和Hybird映射,将其产生的二值序列分别与数字图像的奇行和偶行采用异或置乱算法对图像进行置乱。数值实验表明,所给算法实现简单,安全性高,对椒盐噪声和剪切有一定的抗攻击性。Based on chaotic sequences, a new digital image scrambling algorithm is presented.XOR scrambling algorithm based on Logistic mapping and Hybird mapping is used to scramble the image, oddnumbered lines XOR two value sequences produces with the line XOR the Hybird mapping produces two value sequences. Logistic mapping, and the even-numbered The simulating the algorithm is simple, security very highly, and has certain anti-aggressivity and shears.

关 键 词：混沌序列 图像置乱 非线性离散化 

分 类 号：TN918[电子电信—通信与信息系统]