| 一类自适应隐写的更改比率估计 |
| |
| 引用本文： | 罗向阳,刘粉林,杨春芳,廉士国.一类自适应隐写的更改比率估计[J].中国科学：信息科学,2011(3). |
| |
| 作者姓名： | 罗向阳 刘粉林 杨春芳 廉士国 |
| |
| 作者单位： | 解放军信息工程大学信息工程学院;法国电信北京研发中心; |
| |
| 基金项目： | 国家自然科学基金(批准号:60902102,60970141); 河南省科技创新杰出人才计划(批准号:094200510008); 解放军信息工程大学博士论文创新基金(批准号:BSLWCX200804)资助项目 |
| |
| 摘 要： | 针对图像自适应隐写的检测问题,分析了最低多有效位(MLSB,multiple least signific ant bits)替换隐写的样本对分析模型在对自适应隐写的适用性,给出了适于该模型检测的自适应隐写须满足的条件,对满足条件的一类自适应隐写,给出了基于特定区域和像素对分析的定量分析一般方法,然后针对一种典型自适应隐写,给出了具体的特定区域选取方法、样本对跟踪集选取方法和隐写更改比率估计算法.实验结果表明针对这种隐写,该算法能够较为准确地估计隐写更改比率,验证了文中方法的有效性.
|
| 关 键 词： | 自适应隐写 隐写分析 MLSB 样本对分析 更改比率 |
Modification ratio estimation for a category of adaptive steganography |
| |
| LUO XiangYang,LIU FenLin,YANG ChunFang & LIAN ShiGuo Zhengzhou Information Science , Technology Institute,Zhengzhou ,China, France Telecom R&D Beijing,Beijing.Modification ratio estimation for a category of adaptive steganography[J].Scientia Sinica Informationis,2011(3). |
| |
| Authors: | LUO XiangYang LIU FenLin YANG ChunFang & LIAN ShiGuo Zhengzhou Information Science Technology Institute Zhengzhou China France Telecom R&D Beijing Beijing |
| |
| Affiliation: | LUO XiangYang1,LIU FenLin1,YANG ChunFang1 & LIAN ShiGuo2 1 Zhengzhou Information Science and Technology Institute,Zhengzhou 450002,China,2 France Telecom R&D Beijing,Beijing 100080 |
| |
| Abstract: | This paper investigates the detection of adaptive image steganography.Firstly,the sample pair analysis model of multiple least-significant bits(MLSB) replacement is analyzed,and the conditions under which the adaptive steganography can be detected via this model are given.For the category of adaptive steganography satisfying these conditions,a general quantitative steganalysis method is presented based on specific areas and sample pair analysis.Then,for a typical adaptive steganography,some concrete methods... |
| |
| Keywords: | adaptive steganography steganalysis MLSB(multiple least significant bits) sample pair analysis modification ratio |
| 本文献已被 CNKI 等数据库收录！ |
|
