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:
Oct. 01, 2013
Filed:
Dec. 29, 2008
Yue Qiao, Longmont, CO (US);
Yue Qiao, Longmont, CO (US);
Ricoh Production Print Solutions LLC, Boulder, CO (US);
Abstract
Methods and systems herein provide for the color conversion of image data. Such color conversion includes receiving the image data from an input imaging device and generating a CMYK to CIELab model for conversion of the image data to a color gamut of an output imaging device. From there, a table of CMYK color values and corresponding CIELab color values is generated based on the model. The color conversion then includes mapping the CIELab color values of the image data to a CIELab color gamut of the output imaging device such as a printer. The color conversion also includes comparing the mapped CIELab color values to the CIELab color values of the table to retrieve corresponding CMYK color values and processing the retrieved CMYK color values (e.g., via multidimensional optimization) to convert the CIELab color values of the image data to the CIELab color values of the output imaging device.