基于MME和IRB的信息隐写算法  

Steganography based on modified matrix encoding and iterative random blocking

作　　者：刘九芬[1] 王勇[1] 张卫明[1] 

机构地区：[1]信息工程大学信息工程学院,河南郑州450002

出　　处：《计算机工程与设计》2011年第2期457-459,480,共4页Computer Engineering and Design

基　　金：国家自然科学基金项目(60803155)

摘　　要：为提高隐写算法的安全性,提出一种基于MME(modified matrix encoding)和IRB(iterative random blocking)的信息隐写算法。通过分析基于IRB的隐写算法流程,找到了其载密图像质量下降的主要原因,使用MME改进了该算法。实验结果表明,相比于IRB隐写算法,改进算法提高了载密图像质量,同时提高了抵抗盲检测的能力。改进算法表明了使用隐写编码可提高嵌入效率,从而提高隐写算法的安全性。To improve the security of the steganography method, a kind of steganography based on IRB （iterative random blocking） and MME （modified matrix encoding） is presented. The process of the IRB steganography is analyzed to figure out the main reason why secret message embedding would make the image quality descending is analyzed, and the scheme with MME further is improved. Experimental results show that the proposed method would bring less distortion when embedding the secret message. Moreover, the proposed method also improve the capability resisting the recent blind steganalysis scheme. The proposed method show that steganography coding could achieve high embedding efficiency to improve the security of the steganography method.

关 键 词：信息隐藏 隐写 改进矩阵编码 迭代随机分块 联合图像专家组 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]