Advances in photo editing and manipulation tools have made it significantly easier to create fake imagery. Learning to detect such manipulations, however, remains a challenging problem due to the lack of sufficient amounts of manipulated training data. In this paper, we propose a learning algorithm for detecting visual image manipulations that is trained only using a large dataset of real photographs. The algorithm uses the automatically recorded photo EXIF metadata as supervisory signal for training a model to determine whether an image is self-consistent — that is, whether its content could have been produced by a single imaging pipeline. We apply this self-consistency model to the task of detecting and localizing image splices. The proposed method obtains state-of-the-art performance on several image forensics benchmarks, despite never seeing any manipulated images at training. That said, it is merely a step in the long quest for a truly general purpose visual forensics tool.
Fighting Fake News: Image Splice Detection via Learned Self-Consistency
Minyoung Huh,Andrew Liu,Andrew Owens,Alexei A. Efros
Published 2018 in European Conference on Computer Vision
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- Publication year
2018
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European Conference on Computer Vision
- Publication date
2018-05-10
- Fields of study
Computer Science
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