| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve a problem that only specific (one) registrant watermarks authentication information, in this case, information is given to the registrant whenever contents are newly created, watermark of the authentication information is required to be requested and it requires complicated procedures on operation in the conventional technology. <P>SOLUTION: A mark operation program 115e creates a mark by embedding additional information in image data by which symbolism is visually understood, a mark pasting program 115b pastes the mark to unique contents to coincide with the information embedded in the mark and registers it in a Web page DB (data base) 120. A mark detection program 115f detects only the mark from the contents and displays a result of its authenticity by the mark of which the visual design is changed. Furthermore, a mark operation program 115h accepts a user operation to the mark and makes a DB collation program 115i collate information about the mark and displays surer result of the authenticity. <P>COPYRIGHT: (C)2004,JPO |
