Study of information hiding algorithm based on GHM and color transfer theory  

作　　者：任帅 慕徳俊 张弢 胡伟 

机构地区：[1]Department of Automation,Northwestern Polytechnical University

出　　处：《Optoelectronics Letters》2009年第6期454-458,共5页光电子快报（英文版）

基　　金：supported by the National Defense Fund of China (No. C2720061361);the National Science and Technology of China (No.2008ZX03006)

摘　　要：Taking the feature that the energy of the image would gather and spread on four components(LL2,LH2,HL2 and HH2) in the sub-image after first-order GHM multi-wavelet-transform.And by using the color control ability of lαβ color space in color transfer theory(CTT),an information hiding algorithm based on GHM-CTT is proposed.In this way,the robust parameters are embedded in the LL2,the hidden information is set in LH2 and HL2 with RAID4,and fragile sign is set in HH2.The consistence between the embedded data bits' order and the embedded code of the sub-image is improved by using the chaotic mapping and the genetic algorithm.Experimental results indicate that the GHM-CTT can increase the imperceptibility by 15.72% averagely and robustness by 18.89% at least.Taking the feature that the energy of the image would gather and spread on four components （LL2, LH2, HL2 and HH2） in the sub-image after first-order GHM multi-wavelet-transform. And by using the color control ability of 1αβ color space in color transfer theory （CTT）, an information hiding algorithm based on GHM-CTT is proposed. In this way, the robust parameters are embedded in the LL2, the hidden information is set in LH2 and HL2 with RAID4, and fragile sign is set in HH2. The consistence between the embedded data bits＇ order and the embedded code of the sub-image is improved by using the chaotic mapping and the genetic algorithm. Experimental results indicate that the GHM-CTT can increase the imperceptibility by 15.72% averagely and robustness by 18.89% at least.

关 键 词：信息隐藏算法 传递理论 GHM 图像小波变换 色彩 嵌入式 组成部分 TT公司 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构] TQ028.8[自动化与计算机技术—计算机科学与技术]