发明名称 |
VERFAHREN UND GERÄT ZUM FÄLSCHUNGSSCHUTZ UNTER VERWENDUNG DER DIGITALEN RASTERUNG |
摘要 |
The Invention relates to a method for decoding secondary information combined with a primary image and contained in a document as an anti-counterfeiting security feature, the method comprising the steps of: (a) providing the document in which the secondary information is incorporated; (b) selecting a portion of a plurality of pixels forming the combined image; (c) statistically sampling the selected portion of the plurality of pixels to determine the secondary information; and (d) at least one of processing and displaying the secondary information determined in step (c). <IMAGE> |
申请公布号 |
AT244972(T) |
申请公布日期 |
2003.07.15 |
申请号 |
AT19990901068T |
申请日期 |
1999.01.12 |
申请人 |
JURA-TRADE KERESKEDELMI KFT |
发明人 |
KOLTAI, FERENC;ADAM, BENCE;TAKACS, FERENC;BAROS, LASZLO |
分类号 |
G06T1/00;G09C5/00;H04N1/32;H04N1/387;H04N1/40;H04N1/44;(IPC1-7):H04N1/32 |
主分类号 |
G06T1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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