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Undetectable image tampering through JPEG compression anti-forensics
Conference proceeding

Undetectable image tampering through JPEG compression anti-forensics

M C Stamm, S K Tjoa, W S Lin, K J R Liu and IEEE
2010 IEEE International Conference on Image Processing, pp 2109-2112
Sep 2010

Abstract

Anti-Forensics Digital Forensics Discrete cosine transforms Forensics Forgery Image coding JPEG Compression Q factor Quantization Transform coding
Recently, a number of digital image forensic techniques have been developed which are capable of identifying an image's origin, tracing its processing history, and detecting image forgeries. Though these techniques are capable of identifying standard image manipulations, they do not address the possibility that anti-forensic operations may be designed and used to hide evidence of image tampering. In this paper, we propose an anti-forensic operation capable of removing blocking artifacts from a previously JPEG compressed image. Furthermore, we show that by using this operation along with another anti-forensic operation which we recently proposed, we are able to fool forensic methods designed to detect evidence of JPEG compression in decoded images, determine an image's origin, detect double JPEG compression, and identify cut-and-paste image forgeries.

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Web of Science research areas
Engineering, Electrical & Electronic
Imaging Science & Photographic Technology
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