Digital Image Ballistics from JPEG Quantization
| Type of publication: | Techreport |
| Citation: | farid-tr-06 |
| Number: | TR2006-583 |
| Year: | 2006 |
| Institution: | Department of Computer Science, Dartmouth College |
| URL: | http://www.cs.dartmouth.edu/fa... |
| Abstract: | Most digital cameras export images in the JPEG file format. This lossy compression scheme employs a quantization table that controls the amount of compression achieved. Different cameras typically employ different tables. A comparison of an image's quantization scheme to a database of known cameras affords a simple technique for confirming or denying an image's source. Similarly, comparison to a database of photo-editing software can be used in a forensic setting to determine if an image was edited after its original recording. |
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| Authors | |
| Added by: | [ADM] |
| Total mark: | 0 |
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