一种基于超混沌的对数字化图像信息的隐藏加密方法  

Approach of Image Hiding and Encryption Based on a New Hyperchaotic System

作　　者：李萌[1] 

机构地区：[1]江苏大学系统工程研究所,镇江212013

出　　处：《科学技术与工程》2009年第4期905-910,共6页Science Technology and Engineering

基　　金：国家自然科学基金(70871056)资助

摘　　要：提出了一种基于超混沌的图像隐藏方法。应用混沌系统产生混沌序列并生成二值伪随机序列对原始图像做预处理加密,并进行改进的魔方置乱和像素置换;然后对结果图像做进一步隐藏;最后应用评价指标对隐藏效果和安全性进行分析。结果表明,该方法具有较高的安全性和实用性。An improved image hidding method is presented based on a new hyperchaotic system.. The binary sequences that generated based on the new hyperchaotic system applied to pre-encrypt the image, including improved magic-cube scrambling and pixels permutation. Then further processing are used to hide the pre-encrypted image . The effect of hiding is also analyzed by using the method of accessing. Simulation results indicate that the method has good efficiency and security characteristic.

关 键 词：超混沌系统 二值序列 图像隐藏 图像加密 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]