| 基于JPEG二次压缩的隐藏信息检测 |
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| 引用本文： | 戴蒙,林家骏,毛家发.基于JPEG二次压缩的隐藏信息检测[J].华东理工大学学报(自然科学版),2007,33(5):722-725. |
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| 作者姓名： | 戴蒙 林家骏 毛家发 |
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| 作者单位： | 1. 华东理工大学信息科学与工程学院,上海,200237
2. 华东理工大学信息科学与工程学院,上海,200237;江西上饶师范学院,江西,上饶,334001 |
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| 摘 要： | 针对图像隐写软件对图像(JPEG格式)进行二次压缩的过程,提出将待检图片是否被二次压缩作为图像是否被隐写的特征之一。为了对JPEG二次压缩后的图像进行有效检测,通过研究JPEG图像经二次压缩后所引起的DCT统计特性的变化及二次压缩前后的量化表q1、q2对二次压缩后图像的DCT统计所引起的变化的分析,提出了针对不同q1、q2 JPEG二次压缩的检测方法。实验证明本文的检测方法是有效的。
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| 关 键 词： | 隐写术 隐写分析 JPEG双压缩 直方图 |
| 文章编号： | 1006-3080（2007）05-0722-04 |
| 修稿时间： | 2005-11-13 |
Steganalysis Based on Double JPEG Compression |
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| DAI Meng,LIN Jia-jun,MAO Jia-fa.Steganalysis Based on Double JPEG Compression[J].Journal of East China University of Science and Technology,2007,33(5):722-725. |
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| Authors: | DAI Meng LIN Jia-jun MAO Jia-fa |
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| Affiliation: | 1. School of Information Science and Engineering, East China University of Science and Technology, Shanghai 200237, China; 2. ShangRao Normal University ,ShangRao 334001, Jiangxi , China |
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| Abstract: | Due to the stego image double compressed before embedding in some steganographic techniques,double compression could be one of the features of steganography.After JPEG double compressed,the DCT statistic of JPEG image will be changed,which is the focus of this paper.The distributions of DCT coefficients are changed with the double compression quantization tables q_1,q_2.The difference of the distributions is analyzed.The different detection methods are proposed based on different q_1,q_2 which are effectively proved by the experiments. |
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| Keywords: | steganography steganalysis JPEG double compressing histogram |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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