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:
Sep. 08, 2020
Filed:
Jul. 23, 2019
Canon Kabushiki Kaisha, Tokyo, JP;
Tsukasa Doi, Tokyo, JP;
Hirokazu Tanaka, Inagi, JP;
Hisashi Ishikawa, Urayasu, JP;
Shoei Moribe, Kawasaki, JP;
Yusuke Yamamoto, Tokyo, JP;
Shigeo Kodama, Tokyo, JP;
Yuta Ikeshima, Kawasaki, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An image processing apparatus performs image processing to print a color materials of a first color and a second color. When a sum of a first gradation data for the first color and a second gradation data for the second color is equal to or smaller than the maximum value of thresholds of a first threshold matrix, a generation unit generates a second quantization data for the second color based on a result of comparing the second gradation data with a second threshold. When the sum is greater than the maximum value, the generation unit generates third gradation data by subtracting the maximum value from the sum and generates the second quantization data based on a result of comparing the third gradation data with the first threshold or a result of comparing a difference between the second gradation data and the third gradation data with the second threshold.