On Resampling Detection in Re-compressed Images
| Type of publication: | Inproceedings |
| Citation: | kirchner-gloe-wifs-09 |
| Booktitle: | IEEE Workshop on Information Forensics and Security |
| Year: | 2009 |
| Pages: | 21-25 |
| Location: | London, UK |
| Abstract: | Resampling detection has become a standard tool in digital image forensics. This paper investigates the important case of resampling detection in re-compressed JPEG images. We show how blocking artifacts of the previous compression step can help to increase the otherwise drastically reduced detection performance in JPEG compressed images. We give a formulation on how affine transformations of JPEG compressed images affect state-of-the-art resampling detectors and derive a new efficient detection variant, which better suits this relevant detection scenario. The principal appropriateness of using JPEG pre-compression artifacts for the detection of resampling in re-compressed images is backed with experimental evidence on a large image set and for a variety of different JPEG qualities. |
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| Added by: | [ADM] |
| Total mark: | 0 |
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