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MEDIAFORENSICS
2010

Digital image authentication from thumbnails

9 years 23 days ago
Digital image authentication from thumbnails
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.
Eric Kee, Hany Farid
Added 29 Oct 2010
Updated 29 Oct 2010
Type Conference
Year 2010
Where MEDIAFORENSICS
Authors Eric Kee, Hany Farid
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