一种JPEG图像的信息隐藏算法

广西师范大学学报（自然科学版） ›› 2013, Vol. 31 ›› Issue (4): 48-53.

一种JPEG图像的信息隐藏算法

雷芸^1,2, 王现会³, 王晓云⁴, 孙泽锐^2,3, 俞春强^2,3, 张显全^2,3

1.广西民族大学预科教育学院,广西南宁530006;
2.桂林电子科技大学广西信息科学实验中心,广西桂林541004;
3.广西师范大学计算机科学与信息工程学院,广西桂林541004;
4.长江师范学院数学与计算机学院,重庆408100

收稿日期:2013-03-04 出版日期:2013-12-20 发布日期:2018-11-26
通讯作者: 张显全(1964—),男,重庆秀山人,广西师范大学教授。E-mail:zxq6622@163.com
基金资助:
国家自然科学基金资助项目(61363034,61300109);广西自然科学基金资助项目(2011GXNSFD018026,2012GXNSFBA053166,0832104);广西科学研究与技术开发计划项目(10123005-8);重庆市教委研究项目(KJ121310);涪陵区科技计划项目(FLKJ2012ABA1056);广西信息科学实验中心项目(20130204)

An Information Hiding Method Based on JPEG Images

LEI Yun^1,2, WANG Xian-hui³, WANG Xiao-yun⁴, SUN Ze-rui^2,3, YU Chun-qiang^2,3, ZHANG Xian-quan^2,3

1.School of Pre-university,Guangxi University for Nationalities,Nanning Guangxi 530006,China;
2.Guangxi Experiment Center of Information Science,Guilin University of Electronic Technology,Guilin Guangxi 541004,China;
3.College of Computer Science and Information Technology,Guangxi Normal University,Guilin Guangxi 541004,China;
4.College of Mathematics and Computer Science,Yangtze Normal University,Chongqing 408100,China

Received:2013-03-04 Online:2013-12-20 Published:2018-11-26

摘要/Abstract

摘要： 本文提出一种JPEG图像的信息隐藏算法,根据给定阈值确定隐藏信息的低频DCT系数,对这些低频系数进行编号分组,得到载体信息。将秘密信息每2位分为一组,每组秘密信息转换为十进制数,用这个数确定隐藏到载体中某组系数的位置。根据嵌入方式,对秘密信息进行预处理得到嵌入数据,通过与3的模数修改隐藏信息的低频DCT系数实现信息隐藏。实验结果表明,本文算法有较好的视觉效果。

关键词: 信息隐藏, JPEG图像, DCT系数, 分组

Abstract: This paper proposes a steganography scheme based on JPEG images.According to a given threshold,the low frequency coefficients are chosen to hide data.Then these low frequency coefficients are divided into groups to get the carrier.Two bits of secret message are taken as a group from the secret information,and converted into a decimal number.This number will be used to determine the hiding position of the coefficients group.According to the hiding scheme,the secret message is preprocessed to get the hidden data,and the low frequency coefficients of the hiding position is modified by model 3 to hide the secret data.Experimental results indicate that the proposed scheme achieves better image quality of stego-images.

Key words: data hiding, JPEG image, DCT coefficients, dividing into groups

中图分类号:

TN919.81

雷芸, 王现会, 王晓云, 孙泽锐, 俞春强, 张显全. 一种JPEG图像的信息隐藏算法[J]. 广西师范大学学报（自然科学版）, 2013, 31(4): 48-53.

LEI Yun, WANG Xian-hui, WANG Xiao-yun, SUN Ze-rui, YU Chun-qiang, ZHANG Xian-quan. An Information Hiding Method Based on JPEG Images[J]. Journal of Guangxi Normal University(Natural Science Edition), 2013, 31(4): 48-53.

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