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:
Dec. 08, 2009
Filed:
Nov. 10, 2005
Koichi Nobushima, Ibaraki-ken, JP;
Koichi Nobushima, Ibaraki-ken, JP;
Riso Kagaku Corporation, Tokyo, JP;
Abstract
An image processing device has a color-space data storage section storing a*b*-plane division data concerning a dividing method of an a*b*-plane in a L*a*b* color space; a LUT storage section storing LUTs, each of which combines color zones, those into which the a*b*-plane is divided, and a printing order of ink colors used for multicolor-printing with a relationship between multivalued pixel values in an original color-space and those in an ink color-space; a controller obtaining a*b*-values of the ink colors from a printer; a LUT selector discriminating which of the color zones the obtained a*b*-values belong to, and selecting a LUT corresponding to a combination of the discriminated color zones and the printing order of the ink colors from the LUTs; a color converter converting multivalued pixel values of a multicolor original image in the original color-space into multivalued pixel values in the ink color-space, based on the selected LUT.