CPC G07D 7/121 (2013.01) [H04N 1/00331 (2013.01); H04N 1/32256 (2013.01); G06T 2207/10024 (2013.01); G07D 7/00 (2013.01); G07D 7/202 (2017.05); H04N 1/00838 (2013.01); H04N 1/00856 (2013.01); H04N 1/0087 (2013.01); H04N 2201/327 (2013.01)] | 11 Claims |
1. A method for detecting Infrared (IR) security mark based on known halftone frequency information and known color information, the method comprising:
receiving a document from a user, comprising an IR security mark;
scanning the document;
based on the known color information and location information related to the IR security mark, extracting the IR security mark from the scanned document, wherein the location information indicates a location of the IR security mark in the document;
verifying halftone frequency information of the extracted IR security mark;
based on the successful verification, identifying text in the extracted IR security mark; and
comparing the identified text with one or more pre-stored IR security marks to ascertain whether the IR security mark in the document is an authentic security mark.
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