Method for inserting digital watermarking to relation database and extracting it from the same |
Title： |
| Method for inserting digital watermarking to relation database and extracting it from the same |
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Application Number： |
200310117358 |
Application Date： |
2003/12/12 |
Announcement Date： |
2004/11/17 |
Pub. Date： |
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Publication Number： |
1547138 |
Announcement Number： |
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Grant Date： |
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Granted Pub. Date： |
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ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
G06F 17/30 |
Applicant(s)： |
No.61 Institute of Headquarters of General Staff of PLA |
Inventor(s)： |
Li Deyi, Zhang Yong, Wang Jianmin |
Key Words： |
insert, extract, digital watermarking, relation database |
Abstract： |
The invention refers to a method for embedding and extracting digital water lines into and out of the relation databank, which belongs to information hiding technology field. The method is: the copyright person image information to be embedded is transferred into water lines cloud-drop; selects the unit group and attributes of the water lines cloud-drop to be embedded; the water lines cloud-drop is embedded into the confirmed unit group attributes. The extraction method is: selects the unit group attributes of water lines cloud-drop; extracts the water lines cloud-drop, and reduces the water lines cloud-drop into could character information; it is carried on with comparison of similarity between it and the cloud character information of copyright person image information, in order to confirm the copyright person image information. |
Claim： |
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Priority： |
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PCT： |
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LegalStatus： |
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