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:
Nov. 30, 2004
Filed:
Oct. 21, 1997
Kenji Fukasawa, Nagano, JP;
Hirokazu Kasahara, Nagano, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
In order to optimize a color conversion table in accordance with environment of a user since a conventional color conversion table used in a printer driver is not optimized in accordance with the environment of the user, when an installer operation is executed by a computer constituting an image processing device , a color conversion table is formed from a pre conversion color conversion table at step S and according to a processing of increasing lattice points in this case, the lattice points are increased by nonlinear interpolation calculation using Lagrange interpolation equation at step S or the lattice points are increased by linear interpolation, and in that case the number of the lattice points may be fixed or may be a number in accordance with environment or input image by which the color conversion table having a pertinent size can be formed from the pre conversion color conversion table having a small size.