基于特征函数和质量因子的JPEG图像隐写分析

doi:10.7523/j.issn.2095-6134.2010.3.013

中国科学院大学学报 ›› 2010, Vol. 27 ›› Issue (3): 389-396.DOI: 10.7523/j.issn.2095-6134.2010.3.013

基于特征函数和质量因子的JPEG图像隐写分析

邓艺¹, 赵险峰², 冯登国²

1. 中国科学技术大学电子工程与信息科学系,合肥 230027;
2. 中国科学院软件研究所信息安全国家重点实验室,北京 100190

收稿日期:2009-11-23 修回日期:2010-01-18 发布日期:2010-05-15
通讯作者: 邓艺
基金资助:
国家863计划项目(2007AA01Z465)、国家自然科学基金(60970028)、国家自然科学基金重点项目(60633030)和国家自然科学基金面上项目(60573049)资助 

JPEG image steganalysis based on characteristic function and quality factor

DENG Yi¹, ZHAO Xian-Feng², FENG Deng-Guo²

1. Department of Electronic Engineering and Information Science, University of Science and Technology of China, Hefei 230026, China;
2. State Key Laboratory of Information Security, Institute of Software, Chinese Academy of Sciences, Beijing 100190, China

Received:2009-11-23 Revised:2010-01-18 Published:2010-05-15

摘要/Abstract

摘要：

提出了一种新的JPEG通用隐写分析方法.通过分析JPEG图像DCT域和小波域的量化噪声模型和隐写模型,发现了量化噪声和嵌入噪声对图像的作用原理,并用直方图特征函数来区分2种噪声对图像的影响. 基于JPEG质量因子对图像进行分类,为每个图像分类单独训练支持向量机分类器.实验显示,本文方法相比已有的一些常用JPEG通用隐写分析方法具有更好的检测性能.

关键词: 信息隐藏, 图像隐写, 隐写分析, 特征函数, 质量因子

Abstract:

In this paper, we proposed a new JPEG universal steganalytic scheme. By analyzing JPEG quantization model and steganographic model in DCT domain and wavelet domain, the study shows difference of quantization noise and embedding noise. Features calculated from the characteristic functions of JPEG individual histograms and wavelet subbands histograms are used to discriminate them. We categorize JPEG images based on quality factor and train different SVM classifier for individual categories. Experiments show that our method has better performance than some exiting JPEG universal steganalytic methods.

Key words: information hiding, image steganography, steganalysis, characteristic function, quality factor

中图分类号:

TP301

邓艺, 赵险峰, 冯登国. 基于特征函数和质量因子的JPEG图像隐写分析[J]. 中国科学院大学学报, 2010, 27(3): 389-396.

DENG Yi, ZHAO Xian-Feng, FENG Deng-Guo. JPEG image steganalysis based on characteristic function and quality factor[J]. , 2010, 27(3): 389-396.

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基于特征函数和质量因子的JPEG图像隐写分析

JPEG image steganalysis based on characteristic function and quality factor

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