网络与信息安全学报 ›› 2017, Vol. 3 ›› Issue (12): 38-44.doi: 10.11959/j.issn.2096-109x.2017.00220

• 学术论文 • 上一篇    下一篇

基于块效应网格偏移的重获取JPEG图像篡改检测

黄维1,2,黄添强1,2(),张雪莉1,2,肖辉1,2   

  1. 1 福建师范大学数学与信息学院,福建 福州 350117
    2 福建省大数据挖掘与应用工程技术研究中心,福建 福州 350117
  • 修回日期:2017-11-24 出版日期:2017-12-01 发布日期:2018-01-12
  • 作者简介:黄维(1994-),女,福建莆田人,福建师范大学硕士生,主要研究方向为信息安全、数字多媒体取证。|黄添强(1971-),男,福建莆田人,博士,福建师范大学教授,主要研究方向为机器学习、数字多媒体取证。|张雪莉(1993-),女,河南正阳人,福建师范大学硕士生,主要研究方向为信息安全、数字多媒体取证。|肖辉(1991-),男,福建南平人,福建师范大学硕士生,主要研究方向为信息安全、视频目标跟踪。
  • 基金资助:
    国家自然科学基金资助项目(61070062);国家自然科学基金资助项目(61502103);福建省高校产学合作科技重大基金资助项目(2015H6007);福州市科技计划基金资助项目(2014-G-76);福建省高等学校新世纪优秀人才支持基金资助项目(JAI1038);福建省科学厅K类基金资助项目(2011007);福建省教育厅A类基金资助项目(JA10064)

JPEG recapture image tamper detection method based on block effect grid offset

Wei HUANG1,2,Tian-qiang HUANG1,2(),Xue-li ZHANG1,2,Hui XIAO1,2   

  1. 1 College of Mathematics and Informatics,Fujian Normal University,Fuzhou 350117,China
    2 Fujian Provincial Engineering Research Center of Big Data Analysis and Application,Fuzhou 350117,China
  • Revised:2017-11-24 Online:2017-12-01 Published:2018-01-12
  • Supported by:
    The National Natural Science Foundation of China(61070062);The National Natural Science Foundation of China(61502103);Industry-University Cooperation Major Project of Fujian Province(2015H6007);Science and Technology Program of Fuzhou(2014-G-76);Program for New Century Excellent Talents in University of Fujian Province(JAI1038);The K-class Foundation Project of Fujian Provincial Science and Technology(2011007);The A-class Foundation Project of Fujian Provincial Education Department(JA10064)

摘要:

重获取图像是原始或篡改后的图像经过中间媒介的映射后再次拍摄获取的图像,一张高质量的重获取伪造图像很难通过人眼判别真伪。针对JPEG格式的重获取图像篡改操作,提出了一种重压缩块效应网格偏移的检测方法。重获取图像由于再获取过程会引入与原图不相关的背景信息,该图像进行多次压缩会产生块效应网格偏移,即重压缩产生的块效应网格会与原始的网格错匹配,利用图像的平均信息损失量进行块效应网格是否发生偏移来检测图像的原始性。实验表明,该方法比已有的重获取图像检测方法准确率更高,且平均检测时间更短。

关键词: 图像取证, 重获取图像, JPEG图像, 重压缩, 块效应网格偏移

Abstract:

Recaptured images are captured original or distorted image shown on the intermediaries,a high-quality recapture image is difficult to distinguish the authenticity of the human eye.Aimed at the tampering operation of JPEG image,a method of detecting block effect grid offset due to re-compression was proposed.The original image was compressed multiple times did not produce the block effect of the grid offset,and the recapture image,because of the recapture process would introduce background information that was not related to the original image,the re-compression of the block effect grid with the original grid is mismatched,and the average information loss amount of the image was used to detect whether the block effect grid generates an offset or not to detect the recapture image.Experiments show that this method is more accurate than the existing recapture image detection method,and the average detection time is shorter.

Key words: image forensics, recapture images, JPEG images, repetitive compression, offset of BAG

中图分类号: 

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