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:
Mar. 19, 2019
Filed:
Apr. 07, 2016
Fuji Xerox Co., Ltd., Tokyo, JP;
Kosuke Shimizu, Yokohama, JP;
FUJI XEROX CO., LTD., Tokyo, JP;
Abstract
An image reading apparatus includes a light source, a detector, and an image processing unit that processes an image so as to determine a color and density of each pixel based on image signals detected by the detector. The image processing unit includes a determination unit that compares a target pixel and adjacent front and rear pixels and that determines a degree of matching of the target pixel to a condition for the target pixel to be a color shift pixel between the adjacent front and rear achromatic color pixels based on a pattern of the color and density. The image processing unit further includes a correction unit that variably sets a color shift correction amount based on the degree of matching, and that corrects the image signal by the color shift correction amount such that the target pixel which is the color shift pixel becomes an achromatic color pixel.