Image analysis – Applications
Patent
1997-08-07
2000-01-04
Johns, Andrew W.
Image analysis
Applications
382317, G06K 900
Patent
active
060118571
ABSTRACT:
A method for detecting copy restrictive documents is disclosed. At least one photograph (101) is placed on a scanner platen (10) and a low resolution scan is performed (20) to produce a low resolution image. A skew angle and a location of the photograph is determined (30). The photograph is rescanned at a high resolution (40) to produce a high resolution image, the high resolution image is deskewed (45), and the high resolution image is checked (50) for the presence of one or more microdots. Use of the high resolution image is inhibited if microdots are detected (55). In one embodiment, a plurality of photographs are placed on the scanner platen and a portion of each the high resolution images is checked by a software program for the presence of microdots.
REFERENCES:
patent: 4516265 (1985-05-01), Kizu et al.
patent: 4802229 (1989-01-01), Yamada
patent: 5018767 (1991-05-01), Wicker
patent: 5193853 (1993-03-01), Wicker
patent: 5231663 (1993-07-01), Earl et al.
patent: 5379093 (1995-01-01), Hashimoto et al.
patent: 5390003 (1995-02-01), Yamaguchi et al.
patent: 5412718 (1995-05-01), Narasimhalu et al.
patent: 5444779 (1995-08-01), Daniele
patent: 5467169 (1995-11-01), Morikawa
patent: 5647010 (1997-07-01), Okubo et al.
patent: 5719968 (1998-02-01), Hashimoto et al.
patent: 5752152 (1998-05-01), Gasper et al.
patent: 5772250 (1998-06-01), Gasper
patent: 5822660 (1998-10-01), Wen
patent: 5841905 (1998-11-01), Lee
patent: 5843564 (1998-12-01), Gasper et al.
patent: 5845008 (1998-12-01), Katoh et al.
DiVincenzo Joseph P.
Schildkraut Jay S.
Sowell Quinton L.
Blish Nelson Adrian
Eastman Kodak Company
Johns Andrew W.
Novais David A.
LandOfFree
Detecting copy restrictive documents does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Detecting copy restrictive documents, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Detecting copy restrictive documents will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1078671