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
[ "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。" ]
网络首发:2017-12,
纸质出版:2017-12-15
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黄维, 黄添强, 张雪莉, 等. 基于块效应网格偏移的重获取JPEG图像篡改检测[J]. 网络与信息安全学报, 2017,3(12):38-44.
Wei HUANG, Tian-qiang HUANG, Xue-li ZHANG, et al. JPEG recapture image tamper detection method based on block effect grid offset[J]. Chinese Journal of Network and Information Security, 2017, 3(12): 38-44.
黄维, 黄添强, 张雪莉, 等. 基于块效应网格偏移的重获取JPEG图像篡改检测[J]. 网络与信息安全学报, 2017,3(12):38-44. DOI: 10.11959/j.issn.2096-109x.2017.00220.
Wei HUANG, Tian-qiang HUANG, Xue-li ZHANG, et al. JPEG recapture image tamper detection method based on block effect grid offset[J]. Chinese Journal of Network and Information Security, 2017, 3(12): 38-44. DOI: 10.11959/j.issn.2096-109x.2017.00220.
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。
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.
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