Journal
MULTIMEDIA TOOLS AND APPLICATIONS
Volume 78, Issue 1, Pages 489-506Publisher
SPRINGER
DOI: 10.1007/s11042-017-5101-3
Keywords
Image source identification; Binary similarity measures; Photo response non-uniformity noise (PRNU)
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Funding
- National Natural Science Foundation of China [61572182, 61370225]
- Hunan Provincial Natural Science Foundation of China [15JJ2007]
- Scientific Research Plan of Hunan Provincial Science and Technology Department of China [2014FJ4161]
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Aiming at the identification of natural images and computer generated graphics, an image source pipeline forensics method based on binary similarity measures of PRNU (photo response non-uniformity) is proposed. As PRNU is a unique attribute of natural images, binary similarity measures of PRNU are used to represent the differences between natural images and computer generated graphics. Binary Kullback-Leibler distance, binary minimum histogram distance, binary absolute histogram distance and binary mutual entropy are calculated from PRNU in RGB three channels. With a total of 36 dimensions of features, LIBSVM is used for classification. Experimental results and analysis indicate that it can achieve an average identification accuracy of 99.83%, and the capability of identifying natural images and computer generated graphics is balanced. Meanwhile, it is robust against JPEG compression, rotation and additive noise.
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