When creating a digital composite of, for example, two people standing side-by-side, it is often difficult to match the lighting conditions from the individual photographs. Lighting inconsistencies can therefore be a useful tool for revealing traces of digital tampering. Borrowing and extending tools from the field of computer vision, we describe how the direction of a point light source can be estimated from only a single image. We show the efficacy of this approach in real-world settings. Copyright 2005 ACM.
CITATION STYLE
Johnson, M. K., & Farid, H. (2006). Exposing digital forgeries by detecting inconsistencies in lighting. In Proceedings of the 7th Multimedia and Security Workshop 2005, MM and Sec’05 (Vol. 2006, pp. 1–9). https://doi.org/10.1145/1073170.1073171
Mendeley helps you to discover research relevant for your work.