Digital Watermarking Authentication and Restoration for Chinese Calligraphy Images
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Ho, Anthony T. S., Zhu, Xunzhan and Tang, Lilian H. (2007) Digital Watermarking Authentication and Restoration for Chinese Calligraphy Images In: 2007 15th International Conference on Digital Signal Processing.
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Abstract
In this paper, a semi-fragile watermarking method for authentication and automatic restoration of Chinese calligraphy images is proposed using the pinned sine transform (PST). The watermarking system can locate the content of image that has been tampered maliciously with high accuracy. In particular, the watermarking scheme is very sensitive to any texture alteration in the watermarked images, which is crucial for calligraphy image analysis. The tampered portions could be approximately restored. Results of simulation experiments are presented to demonstrate the effectiveness of the proposed method.
| Item Type: | Conference or Workshop Item (UNSPECIFIED) |
|---|---|
| Additional Information: | In Proceedings of the 15th International Conference on Digital Signal Processing, 2007, 483-486.© 2007 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. |
| Uncontrolled Keywords: | Image processing, Image restoration, Security |
| Divisions: | Faculty of Engineering and Physical Sciences > Computing Science |
| ID Code: | 1886 |
| Deposited By: | Mr Adam Field |
| Deposited On: | 27 May 2010 15:45 |
| Last Modified: | 26 Sep 2012 14:37 |
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