基于改进整数变换的无损隐秘传输方法与仿真  

Method and Simulation of Lossless Covert Communication Based on Modified Integer Transform

作　　者：邱应强[1] 张育钊[1] 

机构地区：[1]华侨大学信息科学与工程学院,厦门361021

出　　处：《系统仿真学报》2012年第4期859-862,867,共5页Journal of System Simulation

摘　　要：给出了一种基于改进整数变换的图像无损隐秘传输方法。该方法改进整数变换使得整数变换引入失真较少,并能自适应选择整数变换后引入误差较小的图像可修改矢量进行整数变换并嵌入机密信息。局域网上的仿真实验结果表明该方法具有较高的嵌入容量和较好的隐蔽性,同时正确提取机密信息后原宿主图像可无损恢复。A reversible covert communication method based on modified integer transform for image was proposed.Secret information was embedded adaptively in the translated vectors with less distortion of image,which was transformed by the modified integer transform introducing less distortion.The simulated results by the computers in local area networks show that the method has larger embedding capacity and better secrecy,and the original covered image can be restored without any distortion after hidden secret information is extracted.

关 键 词：改进整数变换 无损隐藏 隐秘传输 嵌入容量 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]