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Proceedings Paper

Digital image authentication from thumbnails
Author(s): Eric Kee; Hany Farid
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Paper Abstract

We describe how to exploit the formation and storage of an embedded image thumbnail for image authentication. The creation of a thumbnail is modeled with a series of filtering operations, contrast adjustment, and compression. We automatically estimate these model parameters and show that these parameters differ significantly between camera manufacturers and photo-editing software. We also describe how this signature can be combined with encoding information from the underlying full resolution image to further refine the signature's distinctiveness.

Paper Details

Date Published: 27 January 2010
PDF: 10 pages
Proc. SPIE 7541, Media Forensics and Security II, 75410E (27 January 2010); doi: 10.1117/12.838834
Show Author Affiliations
Eric Kee, Dartmouth College (United States)
Hany Farid, Dartmouth College (United States)

Published in SPIE Proceedings Vol. 7541:
Media Forensics and Security II
Nasir D. Memon; Jana Dittmann; Adnan M. Alattar; Edward J. Delp III, Editor(s)

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