Facsimile and static presentation processing – Natural color facsimile – Color separation
Reexamination Certificate
2008-07-15
2008-07-15
Poon, King Y. (Department: 2625)
Facsimile and static presentation processing
Natural color facsimile
Color separation
C358S504000, C358S518000
Reexamination Certificate
active
07400430
ABSTRACT:
A method, computer program product and system for detecting and compensating for color misregistration. A black/white edge or a solid color edge on a target may be scanned. A black/white edge may refer to a black image, e.g., black text, on a white surrounding background having a rapid spatial transition from black to white. A solid color edge may refer to a solid color image, e.g., solid color text, on a white surrounding background having a rapid spatial transition from color to white. A curve of gray values versus spatial pixel positions for each color channel, e.g., red, green and blue color channels, may be generated. A misregistration error may then be calculated by calculating the offset between the color channel curves. The misregistration error may then be used to calibrate the scanner to compensate for the detected color misregistration.
REFERENCES:
patent: 5000570 (1991-03-01), Neilson et al.
patent: 6034795 (2000-03-01), Smitt
patent: 6587224 (2003-07-01), Nabeshima et al.
patent: 2002/0141003 (2002-10-01), Chang et al.
patent: 60230760 (1985-11-01), None
Czyszczewski Joseph Stanley
Li Hong
Smith, II James T.
Stanich Mikel John
Thompson Gerhard Robert
Cheng Peter L
Duft Bornsen & Fishman LLP
InfoPrint Solutions Company, LLC.
Poon King Y.
LandOfFree
Detecting and compensating for color misregistration... 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 and compensating for color misregistration..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Detecting and compensating for color misregistration... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2754654