Digital image authentication from thumbnails

Eric Kee; Hany Farid

doi:10.1117/12.838834

27 January 2010 Digital image authentication from thumbnails

Eric Kee, Hany Farid

Proceedings Volume 7541, Media Forensics and Security II; 75410E (2010) https://doi.org/10.1117/12.838834
Event: IS&T/SPIE Electronic Imaging, 2010, San Jose, California, United States

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.

Citation Download Citation

Eric Kee and Hany Farid "Digital image authentication from thumbnails", Proc. SPIE 7541, Media Forensics and Security II, 75410E (27 January 2010); https://doi.org/10.1117/12.838834

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