| 采用图像滤波的多特征JPEG盲检测 |
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| 引用本文： | 韩杰思,沈建京. 采用图像滤波的多特征JPEG盲检测[J]. 电子科技大学学报(社会科学版), 2011, 0(2) |
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| 作者姓名： | 韩杰思 沈建京 |
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| 作者单位： | 解放军信息工程大学理学院; |
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| 摘 要： | 提出了一种采用锐化滤波的多种特征相结合的JPEG盲检测算法。通过扩展DCT系数的马尔可夫矩阵提取块内相关性和块间相关性;引入锐化滤波来增强图像的边缘,加强了分块特性度量的效果;并使用Jessica的校准技术来估计原始图像,得到两个图像特征向量之差作为分类特征,提高了特征的敏感度;最后运用支持向量机进行训练和分类。使用大量图像对该算法的性能进行测试和比较,结果表明该算法在低嵌入率下优于其他算法。
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| 关 键 词： | 盲检测 特征提取 滤波 图像处理 支持向量机 |
Multi-Feature-Based Blind Steganalysis for JPEG Images Using Image Filter |
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| HAN Jie-si , SHEN Jian-jing. Multi-Feature-Based Blind Steganalysis for JPEG Images Using Image Filter[J]. Journal of University of Electronic Science and Technology of China(Social Sciences Edition), 2011, 0(2) |
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| Authors: | HAN Jie-si SHEN Jian-jing |
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| Affiliation: | HAN Jie-si and SHEN Jian-jing(Institute of Science,Information and Engineering University Zhengzhou 450001) |
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| Abstract: | A new multi-feature-based blind steganalysis scheme for JPEG images using sharpening filter is presented.In this scheme,the Markov matrix is extended to distill the intra-block correlations and the inter-block correlations;the sharpening filter is adopted to enhance the image edge;the Jessica's calibration technique is used to estimate original image and construct feature vectors;and the support vector machine classifier is applied to get results at last.Many images are tested and compared.Experimental resu... |
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| Keywords: | blind steganalysis feature extraction filter image processing support vector machine |
| 本文献已被 CNKI 等数据库收录！ |
