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.:

US 8675267 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 18, 2014

Filed:

Jan. 24, 2012
Applicants:

Kenji Yamada, Kanagawa, JP;

Kosuke Shimizu, Kanagawa, JP;

Kensuke Ohara, Kanagawa, JP;

Inventors:

Kenji Yamada, Kanagawa, JP;

Kosuke Shimizu, Kanagawa, JP;

Kensuke Ohara, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03F 3/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

An image reading apparatus includes a conversion unit and a setting unit. The conversion unit converts first image information into second image information by using a predetermined color conversion factor group. The setting unit (i) obtains the second image information of a color sample of a plurality of colors converted by the conversion unit from the first image information, the first image information generated by reading the color sample, the color sample used to correct a color level difference according to a light source, (ii) selects a color conversion factor group corresponding to the obtained second image information of the color sample based on the correspondence relationship between a color conversion factor group and a color level of the second image information of the color sample, and (iii) sets the selected color conversion factor group instead of the predetermined color conversion factor group of the conversion unit.


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