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Apart from traditional visual secret sharing (VSS), progressive visual secret sharing (PVSS) can gain clearer recovered secret image with more shares. In the literature, Hou and Quan [Hou, Y. C., Quan, Z. Y.: Progressive visual cryptography with unexpanded shares. IEEE Trans. on Circ. and Sys. for Video Tech. 21(11), Pages 1760-1764(2011)], and Chen et al. [Chen, T.-H., et al., Quality-adaptive visual...
Due to its simplicity and effectiveness, copy-move forgery has become a commonly used approach to forging images and detection of this behavior has attracted much attention in recent years. Usually integrated in the copy-move forgery process is the rotation operation, which makes rotation invariance a critical property of the copy-move forgery detection methods. In this paper, we propose to use screened...
In this paper, we propose a new method for cartoon image retrieval based on the local invariant shape feature, named Scalable Shape Context. The proposed feature uses the Harris-Lap lace corner to localize the key points and corresponding scale in the cartoon image. Then, we use Shape Context to describe the local shape. The feature point matching is achieved by a weighted bipartite graph matching...
Enhancement of image quality is a key problem for automated fingerprint recognition systems, especially for minutiae-based analysis. In this paper, five enhancement algorithms, including three popular enhancement algorithms and two combined algorithms, were reviewed. The FVC2000 DB1 B was chosen as the testing database. An algorithm evaluating platform based on minutiae comparison was implemented...
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