基于改进整数变换的无损隐秘传输方法与仿真

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。

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

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.