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:
Nov. 02, 1999
Filed:
Aug. 07, 1997
Naoji Ohtsuka, Yokohama, JP;
Nobuyuki Kuwabara, Kawasaki, JP;
Isao Ebisawa, Yokohama, JP;
Atsushi Arai, Kawasaki, JP;
Hisao Yaegashi, Kawasaki, JP;
Toshiharu Inui, Yokohama, JP;
Kentaro Yano, Yokohama, JP;
Kiichiro Takahashi, Kawasaki, JP;
Osamu Iwasaki, Tokyo, JP;
Daigoro Kanematsu, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
According to an image processing method and apparatus of the present invention, an outline portion is extracted from input image data, and a pixel whose dot size is to be changed is extracted. The input image data is printed without any change, and the pixel whose dot size is to be changed is overlap-printed while the dot size is increased. Therefore, smoothing can be sufficiently performed in both the main scanning direction and the sub-scanning direction without increasing the dot density and decreasing the recording speed.