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Please use this identifier to cite or link to this item:
http://ir.ncue.edu.tw/ir/handle/987654321/9983
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| Title: | A Color Image Copyright Protection Scheme Based on Visual Cryptography and Discrete Cosine Transform |
| Authors: | Chang, Chin-Chen;Hsiao, Ju-Yuan;Yeh, Jyh-Chiang |
| Contributors: | 資訊工程系 |
| Keywords: | Discrete cosine transform;Intellectual property right;Visual cryptography |
| Date: | 2002
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| Issue Date: | 2012-05-02T09:37:48Z
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| Publisher: | Maney Publishing |
| Abstract: | In this paper, a copyright protection scheme based on visual cryptography and discrete cosine transform for colour images is proposed. Note that the watermark emphasized here is a colour watermark. Instead of hiding a watermark in a colour image for identifying the ownership of the image, all that is required is to construct an ownership share according to a master share created from the colour image by applying discrete cosine transform plus a watermark used for copyright certification. By stacking the master share and the ownership share together, the watermark for ownership identification can be revealed through the utilization of visual cryptography plus a little additional computation. Additionally, the present scheme is also extremely suitable for multiple watermarking. The security of this scheme can be guaranteed via a pseudo random mechanism and the feature of visual cryptography. With substantial experimental results, the robustness of this scheme can be demonstrated against various image processing attacks. |
| Relation: | The Imaging Science Journal, 50(3): 133-140 |
| Appears in Collections: | [資訊工程學系] 期刊論文
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Files in This Item:
| File |
Size | Format | |
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| 2050400410007.pdf | 13Kb | Adobe PDF | 827 | View/Open |
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