Passive detection of doctored JPEG image via block artifact grid extraction

Weihai Li; Yuan Yuan; Nenghai Yu

doi:10.1016/j.sigpro.2009.03.025

Passive detection of doctored JPEG image via block artifact grid extraction

Weihai Li, Yuan Yuan, Nenghai Yu

科研成果: 期刊稿件 › 文章 › 同行评审

167 引用（Scopus）

摘要

It has been noticed that the block artifact grids (BAG), caused by the blocking processing during JPEG compression, are usually mismatched when interpolating or concealing objects by copy-paste operations. In this paper, the BAGs are extracted blindly with a new extraction algorithm, and then abnormal BAGs can be detected with a marking procedure. Then the phenomenon of grid mismatch or grid blank can be taken as a trail of such forensics. Experimental results show that our method can mark these trails efficiently.

源语言	英语
页（从-至）	1821-1829
页数	9
期刊	Signal Processing
卷	89
期	9
DOI	https://doi.org/10.1016/j.sigpro.2009.03.025
出版状态	已出版 - 9月 2009
已对外发布	是

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abstract = "It has been noticed that the block artifact grids (BAG), caused by the blocking processing during JPEG compression, are usually mismatched when interpolating or concealing objects by copy-paste operations. In this paper, the BAGs are extracted blindly with a new extraction algorithm, and then abnormal BAGs can be detected with a marking procedure. Then the phenomenon of grid mismatch or grid blank can be taken as a trail of such forensics. Experimental results show that our method can mark these trails efficiently.",

keywords = "Block artifact grid, Doctored image forensic, Grid mismatch, JPEG compression",

author = "Weihai Li and Yuan Yuan and Nenghai Yu",

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AU - Yuan, Yuan

AU - Yu, Nenghai

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AB - It has been noticed that the block artifact grids (BAG), caused by the blocking processing during JPEG compression, are usually mismatched when interpolating or concealing objects by copy-paste operations. In this paper, the BAGs are extracted blindly with a new extraction algorithm, and then abnormal BAGs can be detected with a marking procedure. Then the phenomenon of grid mismatch or grid blank can be taken as a trail of such forensics. Experimental results show that our method can mark these trails efficiently.

KW - Block artifact grid

KW - Doctored image forensic

KW - Grid mismatch

KW - JPEG compression

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Passive detection of doctored JPEG image via block artifact grid extraction

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