| 摘要 |
PROBLEM TO BE SOLVED: To propose a check processing system capable of discriminating whether a check is tampered or not in the middle of transferring to a server image information of the check read by a check processing device. SOLUTION: At a check processing device 10, magnetic character information read from a check 2 is embedded as an electronic watermark in image information of the check 2 read by the check processing device 10. The electronically watermarked image information and the magnetic character information are transmitted thereafter through a host computer 20 to a server 30. In a case where the image information is tampered at the host computer 20, the magnetic character information can not be extracted from the image information received by the server 30. Furthermore, even if the magnetic character information can be extracted, it becomes different from the magnetic character information being received by the server 30. Therefore, it can be discriminated whether image information is tampered or not. COPYRIGHT: (C)2009,JPO&INPIT
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