[1]孙子文,纪志成.基于DCT零树的图像隐写算法[J].南京理工大学学报(自然科学版),2008,(01):50-54.
 SUN Zi-wen,JI Zhi-cheng.Image Steganogrphic Algorithm Based on Zerotrees of DCT Coefficients[J].Journal of Nanjing University of Science and Technology,2008,(01):50-54.
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基于DCT零树的图像隐写算法
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
期数:
2008年01期
页码:
50-54
栏目:
出版日期:
2008-02-28

文章信息/Info

Title:
Image Steganogrphic Algorithm Based on Zerotrees of DCT Coefficients
作者:
孙子文;纪志成;
江南大学通信与控制工程学院, 江苏无锡214122
Author(s):
SUN Zi-wenJI Zhi-cheng
School of Communication and Control Engineering,Jiangnan University,Wuxi 214122,China
关键词:
零树 离散余弦变换系数 直方图 分块效应 隐写算法 鲁棒性
Keywords:
zerotrees discrete cosine transform coefficients histograms blocking effect steganographic algorithm robustness
分类号:
TP391.41
摘要:
该文在研究图像离散余弦变换(DCT)系数零树的基础上,提出了一种新的图像隐写算法。该方法通过互换DCT域块中一对中低频系数修改零树的个数,根据DCT块中零树个数的奇偶性嵌入和提取秘密信息。仿真结果表明此隐写算法具有抵抗JPEG压缩的鲁棒性,能良好地保护DCT系数直方图和避免分块效应,能有效抵抗2χ检测,且秘密信息能被准确地盲提取。
Abstract:
Based on zerotrees of the discrete cosine transform(DCT) coefficients,a novel image steganographic algorithm is presented.By interchanging tow coefficients of middle to low frequency in a DCT domain block,the number of DCT zerotrees is changed.According to the parity of number of zerotrees the secrete message is embeded and extracted.The simulation results show that the steganographic algorithm is robust against JPEG compression,the DCT coefficients histogram can be protected,and the blocking effect can be avoided efficiently,so the algorithm can deffend against χ2-test.The secrete message can be extracted exactly and blindly.

参考文献/References:

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备注/Memo

备注/Memo:
基金项目: 国家自然科学基金( 60774030) 作者简介: 孙子文( 1968- ), 女, 四川大竹人, 讲师, 博士生, 主要研究方向: 信息隐藏理论和技术、图像处理, E ma i:l sunziw en@ sytu. edu. cn; 通讯作者: 纪志成( 1959- ), 男, 浙江杭州人, 博士, 教授, 博士生导师, 主 要研究方向: 电力电子与电气传动, Email: zc j@i jiangnan. edu. cn。
更新日期/Last Update: 2012-12-05