| 下采样对数字图像伪造检测的影响分析 |
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| 引用本文： | 康晓兵,张二虎,陈亚军.下采样对数字图像伪造检测的影响分析[J].计算机工程,2012,38(16):215-218. |
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| 作者姓名： | 康晓兵 张二虎 陈亚军 |
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| 作者单位： | 西安理工大学信息科学系 |
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| 基金项目： | 国家自然科学基金资助项目(61073092);西安市科技计划基金资助项目(CXY1129-4) |
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| 摘 要： | 在数字图像伪造检测中，取证过程容易导致伪造痕迹丢失，造成图像内容鉴别困难。为此，研究数字图像伪造检测方法的可靠性。给出图像复制-移动伪造检测流程，分析下采样处理对图像伪造检测的影响。理论分析与实验结果表明，在一定情况下，下采样处理会移除数字图像的伪造痕迹，影响检测结果。
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| 关 键 词： | 复制-移动伪造 图像取证 下采样 多尺度分析 伪造痕迹 |
| 收稿时间： | 2011-10-08 |
| 修稿时间： | 2011-12-04 |
Influence Analysis of Down-sampling on Digital Images Forgery Detection |
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| KANG Xiao-bing,ZHANG Er-hu,CHEN Ya-jun.Influence Analysis of Down-sampling on Digital Images Forgery Detection[J].Computer Engineering,2012,38(16):215-218. |
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| Authors: | KANG Xiao-bing ZHANG Er-hu CHEN Ya-jun |
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| Affiliation: | (Department of Information Science,Xi’an University of Technology,Xi’an 710048,China) |
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| Abstract: | In view of image content authentication problem caused by some forensic operations disturbing forgery traces,this paper investigates the reliability of digital image forgery detection methods.It addresses the use of down-sampling process in image forgery detection,and in-depthly analyzes the influence of sub-sampling process on image copy-move forgery detection.Theoretical analysis and experimental results demonstrate that sub-sampling operation may remove the telltale traces of image copy-move forgery and influence the detection results. |
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| Keywords: | copy-move forgery image forensics down-sampling multi-scale analysis forgery trace |
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