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:
Feb. 05, 2013
Filed:
Mar. 09, 2006
Mark A. Sixbey, Walworth, NY (US);
Michael Sanchez, Rochester, NY (US);
Mark A. Sixbey, Walworth, NY (US);
Michael Sanchez, Rochester, NY (US);
Xerox Corporation, Norwalk, CT (US);
Abstract
A 4×4 LUT comprises a K to K LUT merged with a CMYK to CMYK LUT with values ranging from [0, 0, 0, 0] to [0, 0, 0, 255], said 4×4 LUT written to a known file format. A method for creating 4×4 look up tables (LUTs) uses the source and destination ICC profiles. A K to K LUT is built, a CMYK to CMYK LUT is built, the K to K LUT is merged with the CMYK to CMYK LUT, and the resulting LUT is written to a known file format. Such a process is important since it solves the issue of preserving K in a CMYK to CMYK transform while adding the performance improvement of a 4×4 LUT.