Exposing Digital Forgeries in Complex Lighting Environments
| Type of publication: | Article |
| Citation: | johnson-farid-tifs-07 |
| Journal: | IEEE Transactions on Information Forensics and Security |
| Volume: | 3 |
| Number: | 2 |
| Year: | 2007 |
| Pages: | 450-461 |
| URL: | http://www.cs.dartmouth.edu/fa... |
| Abstract: | The availability of sophisticated digital imaging technology has given rise to digital forgeries that are increasing in sophistication and frequency. We describe a technique for exposing such fakes by detecting inconsistencies in lighting. We show how to approximate complex lighting environments with a low-dimensional model and, further, how to estimate the model's parameters from a single image. Inconsistencies in the lighting model are then used as evidence of tampering. |
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| Added by: | [ADM] |
| Total mark: | 0 |
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