发明名称 |
METHOD OF MANUFACTURING AND AUTHENTICATING A CARD PRINTED WITH DIGITAL INFORMATION BY DIGITAL WATERMARKING TECHNIQUE AND ITS APPARATUS THEREFOR |
摘要 |
For producing the card printed with digital information, a digital image to be printed on the card is manufactured by using information provided by an applicant who requests the issuance of a card, or information on issuance extracted from a database with the information on authentication. At the same time, a watermark is generated by using the information on authentication, the watermark is embedded into the digital image and then, the water-embedded digital image is printed on the card. Thereafter, a watermark-embedded region is captured from the digital image generated by scaning the printed image, and a watermark is extracted from the digital image within the watermarking-embbeded region, Meanwhile, a watermark is generated by inputting information on authentication obtained from a cardholder. Then, the authentication is determined from the co-relation between the extracted watermark and the generated watermark. |
申请公布号 |
WO0227720(A1) |
申请公布日期 |
2002.04.04 |
申请号 |
WO2001KR01620 |
申请日期 |
2001.09.26 |
申请人 |
MARKANY INC.;CHOI, JONG-UK;LEE, JUNG-SU;LEE, WON-HA |
发明人 |
CHOI, JONG-UK;LEE, JUNG-SU;LEE, WON-HA |
分类号 |
B42D15/10;G06K19/06;G06K19/077;G06K19/10;G06T1/00;H04L9/32;H04N1/32;H04N1/387 |
主分类号 |
B42D15/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|