计算机工程与应用 ›› 2008, Vol. 44 ›› Issue (18): 175-176.

• 图形、图像、模式识别 • 上一篇    下一篇

基于位运算和混沌序列的数字图像隐藏技术

李 鹏1,张雪锋1,2,田东平1   

  1. 1.西安邮电学院 信息与控制系,西安 710061
    2.西安电子科技大学 电子工程学院,西安 710071
  • 收稿日期:2007-09-20 修回日期:2007-11-30 出版日期:2008-06-21 发布日期:2008-06-21
  • 通讯作者: 李 鹏

Digital image hiding method based on bit operation and chaotic sequence

LI Peng1,ZHANG Xue-feng1,2,TIAN Dong-ping1   

  1. 1.Department of Information and Control,Xi’an Institute of Posts and Telecommunication,Xi’an 710061,China
    2.College of Electronic Engineering,Xidian University,Xi’an 710071,China
  • Received:2007-09-20 Revised:2007-11-30 Online:2008-06-21 Published:2008-06-21
  • Contact: LI Peng

摘要: 提出了一种改进的数字图像隐藏方法。首先应用混沌系统产生混沌序列,用此混沌序列对原始图像做预处理加密,即做改进的魔方置乱和像素置换;然后对结果图像做进一步基于位运算的隐藏;最后应用评价指标对隐藏效果和安全性进行分析。实验结果表明,该方法具有较高的安全性以及加密效率。

Abstract: An improved image hidding method is proposed based on chaotic sequence and bit operation.Firstly,chaotic sequences are generated based on logisitc mapping and 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 based on bit operation.The effect of hidding is also analyzed by using the method of accessing.Simulation results indicate that the method has good efficiency and security characteristic.