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:
Jan. 13, 2015
Filed:
Mar. 27, 2008
Ayumi Hori, Kawasaki, JP;
Fumihiro Goto, Kawasaki, JP;
Yusuke Hashii, Kawasaki, JP;
Tetsuya Suwa, Yokohama, JP;
Fumitaka Goto, Tokyo, JP;
Ayumi Hori, Kawasaki, JP;
Fumihiro Goto, Kawasaki, JP;
Yusuke Hashii, Kawasaki, JP;
Tetsuya Suwa, Yokohama, JP;
Fumitaka Goto, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A color gamut of image data is appropriately subjected to a smoothing processing to print an image of favorable color reproduction and gradation reproduction. Specifically, when an average lightness is equal to or lower than a blacking lightness, the object pixel is not subjected to the smoothing processing. This can conserve the signal value of the object pixel to prevent a pixel originally having a signal value higher than the blacking lightness from being converted by the gamut compression to a black point. In this manner, a pixel for which the object pixel has the average lightness equal to or lower than the blacking lightness is blacked and a pixel having a signal value higher than the blacking lightness is not compressed to the black point. The resultant image has no deteriorated gradation characteristic when being macroscopically observed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile