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. 17, 2000
Filed:
Sep. 09, 1996
Edward M Granger, Rochester, NY (US);
Light Source Acquisition Company, Grandville, MI (US);
Abstract
An efficient technique for calibrating a scanner relative to a particular colorant set having N primary colorants. Once the scanner is calibrated, the scanner's device-dependent tristimulus values for an arbitrary color are transformed to a device-independent representation of the arbitrary color in a computationally efficient manner. The technique exploits the fact that the color space defined by the primary colorants can be advantageously partitioned, with each partition being represented by a transformation matrix that accurately characterizes the transformation for that partition of the space. The partitioning is characterized by a set of M key colors (in a specific embodiment, M=2N), each of which defines a boundary between adjacent partitions.