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- W2012187833 abstract "Perceptual image hash has been widely investigated in an attempt to solve the problems of image content authentication and content-based image retrieval. In this paper, we combine statistical analysis methods and visual perception theory to develop a real perceptual image hash method for content authentication. To achieve real perceptual robustness and perceptual sensitivity, the proposed method uses Watson's visual model to extract visually sensitive features that play an important role in the process of humans perceiving image content. We then generate robust perceptual hash code by combining image-block-based features and key-point-based features. The proposed method achieves a tradeoff between perceptual robustness to tolerate content-preserving manipulations and a wide range of geometric distortions and perceptual sensitivity to detect malicious tampering. Furthermore, it has the functionality to detect compromised image regions. Compared with state-of-the-art schemes, the proposed method obtains a better comprehensive performance in content-based image tampering detection and localization." @default.
- W2012187833 created "2016-06-24" @default.
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- W2012187833 date "2015-07-01" @default.
- W2012187833 modified "2023-10-12" @default.
- W2012187833 title "A Visual Model-Based Perceptual Image Hash for Content Authentication" @default.
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- W2012187833 doi "https://doi.org/10.1109/tifs.2015.2407698" @default.
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