| 基于信息分存的整数小波大容量数据隐藏方法 |
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| 引用本文： | 寇丽娟.基于信息分存的整数小波大容量数据隐藏方法[J].光电子．激光,2009(9):1203-1207. |
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| 作者姓名： | 寇丽娟 |
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| 作者单位： | 广西师范大学计算机科学与信息工程学院;广西工学院计算机工程系; |
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| 基金项目： | 国家自然科学基金资助项目(60573010) |
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| 摘 要： | 针对基于变换域的数据隐藏算法容量较小、提取时需要原始图像的问题,提出一种小波域的大容量隐藏盲提取算法。利用混沌序列和分组异或对隐秘信息加密,进而将隐秘信息分解为不完全商和余数,然后将不完全商和余数分存于载体图像的低频和高频系数中,并对溢出进行处理。实验表明:在灰度图像中数据隐藏量(SHR)达到37.5%,峰值信噪比(PSNR)可保持在39 dB以上,直方图无异常;通过混沌加密,使得隐秘信息具有较好的伪随机特征,安全性好。
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| 关 键 词： | 数据隐藏 信息分存 整数小波变换 混沌序列 |
A method of data hiding of high capacity based on the information divided-storage using integer wavelet transform |
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| KOU Li-juan.A method of data hiding of high capacity based on the information divided-storage using integer wavelet transform[J].Journal of Optoelectronics·laser,2009(9):1203-1207. |
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| Authors: | KOU Li-juan |
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| Affiliation: | KOU Li-juan1,ZHU Ying-jun1,JIANG Lian-yuan2,HUANG Li1,SUN Rong-hai1 (1.Department of Computer Science and Information Engineering,Guangxi Normal University,Guilin 541004,China,2.Department of Computer Engineering,Guangxi University of Technology,Liuzhou 545006,China) |
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| Abstract: | Data hiding algorithm based on transform domain faces the problem of low capacity and the original image is needed when secret data is extracted.Here,a high capacity blind information hiding algorithm based on wavelet transform is presented.The chaotic sequence and packet XOR are used in the encryption of secret information,which is decomposed into incomplete quotient and remainder,and then the incomplete quotients and remainder are divided and stored in the low frequency and high frequency coefficient of t... |
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| Keywords: | data hiding information divided-storage integer wavelet transform chaotic sequences |
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