The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 15, 2008
Filed:
Sep. 25, 2003
Joseph Stanley Czyszczewski, Longmont, CO (US);
Hong LI, Boulder, CO (US);
James T. Smith, Ii, Boulder, CO (US);
Mikel John Stanich, Longmont, CO (US);
Gerhard Robert Thompson, Wappingers Falls, NY (US);
Chai Wah Wu, Poughquag, NY (US);
Joseph Stanley Czyszczewski, Longmont, CO (US);
Hong Li, Boulder, CO (US);
James T. Smith, II, Boulder, CO (US);
Mikel John Stanich, Longmont, CO (US);
Gerhard Robert Thompson, Wappingers Falls, NY (US);
Chai Wah Wu, Poughquag, NY (US);
InfoPrint Solutions Company, LLC., Boulder, CO (US);
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.