| 一种利用相角对加性隐写模型进行分析的方法 |
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| 引用本文： | 杨 刚,张敏情,张 震.一种利用相角对加性隐写模型进行分析的方法[J].计算机应用研究,2013,30(11):3411-3413. |
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| 作者姓名： | 杨 刚 张敏情 张 震 |
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| 作者单位： | 1. 武警工程大学 电子技术系 网络与信息安全武警部队重点实验室, 西安 710086; 2. 西北工业大学 计算机学院, 西安 710072 |
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| 基金项目： | 陕西省自然科学基金基础研究项目（2012JM8014）; 武警工程大学基础研究基金资助项目（WJY201123） |
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| 摘 要： | 基于图像在加性隐写模型下隐写前后差分直方图离散傅里叶变换与隐写信息离散傅里叶变换间的对应关系, 从隐写前后差分直方图离散傅里叶变换相角的变化入手, 提取特征, 在理论上加以论证并从实验上得到验证。对UCID V2标准图库进行实验, 结果表明, 本方法对加性隐写模型具有很好的检测效果。
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| 关 键 词： | 隐写分析 差分直方图 离散傅里叶变换 相角 |
Steganalysis of additive modelable information hiding using phase angles |
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| YANG Gang,ZHANG Min-qing,ZHANG Zhen.Steganalysis of additive modelable information hiding using phase angles[J].Application Research of Computers,2013,30(11):3411-3413. |
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| Authors: | YANG Gang ZHANG Min-qing ZHANG Zhen |
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| Affiliation: | 1. Key Laboratory of Network & Information Security Under the Armed Police Force, Dept. of Electronic Technology, Engineering University of the Chinese Armed Police Force, Xi'an 710086, China; 2. Computer College, Northwestern Polytechnical University, Xi'an 710072, China |
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| Abstract: | Based on the relationship between the DFT of probability mass function (PMF) of stegonoise and the DFT of diffe-rence histogram of cover image and stegoimage, this paper began with the difference of phase angles which were computed from the DFT of cover imag and stegoimage, then extracted the feature, finally it proved and verified our theory with the experiments. The results of the experiment using the image library of UCID V2 shows that this methord has a good ability to detect the original images from stegoimages which are embeded with additive model. |
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| Keywords: | steganalysis histogram DFT phase angle |
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