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:
Feb. 18, 2014
Filed:
Dec. 07, 2010
Kazuki Narumi, Kawasaki, JP;
Takumi Kaneko, Tokyo, JP;
Rie Takekoshi, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image processor and an image processing method are provided which can suppress both a bronzing phenomenon and a color rolling in an inkjet printing apparatus and produce high-quality monochrome pictures. To that end, a monochrome image is processed by generating the multivalued density data for a chromatic ink having a hue component opposite that of the achromatic ink in a low to medium density region and, in a high density region, generating the multivalued density data for a chromatic ink having a reflection light with a hue component opposite that of a reflection light of the achromatic ink. With this arrangement, a high-quality monochrome image can be produced which has hardly noticeable hue deviations and bronzing phenomenon in the entire density grayscale or density range.