JPEG Quantization Tables Forensics: A Statistical Approach
نویسندگان
چکیده
Many digital image forensics techniques extracting various fingerprints are dependent on data on digital images from an unknown environment. As often software modifications leave no appropriate traces in images metadata, critical inconveniences and miscalculations of fingerprints arise. This is the problem addressed in this paper. Modeling information noise in image metadata, we introduce a statistical approach to metadata analysis of images from “unguaranteed” sources. Resulting fingerprints are based on JPEG quantization tables.
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تاریخ انتشار 2010