Two Copyright Protection Schemes for Digital Images
| Autor: | Pei-Fang Chung, 鐘珮方 |
|---|---|
| Rok vydání: | 2000 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 88 In this thesis, we propose two copyright protection schemes for digital images. One is for two-color bitmap, and the other is for gray-level image. The property of these two protection schemes is that they needn’t change the pixels for embedding the watermarks. The basic concept of these two copyright protection schemes is to extract the characteristic of the image and combine it with the copyright declaration. The combination of the characteristic of the image and the copyright declaration will be stored in the trusted third party. When the ownership of the image is in dispute, the legal holder may employ some secret keys, only known by legal user, to extract the copyright declaration from the combination stored in trusted third party. Further, the ownership of the image will be proven. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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