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.

Date of Patent:
Nov. 15, 2005

Filed:

Oct. 06, 2000
Applicants:

Mitsuru Tokuyama, Soraku-gun, JP;

Masatsugu Nakamura, Kashiba, JP;

Mihoko Tanimura, Nara, JP;

Masaaki Ohtsuki, Yamatokoriyama, JP;

Norihide Yasuoka, Yamatokoriyama, JP;

Inventors:

Mitsuru Tokuyama, Soraku-gun, JP;

Masatsugu Nakamura, Kashiba, JP;

Mihoko Tanimura, Nara, JP;

Masaaki Ohtsuki, Yamatokoriyama, JP;

Norihide Yasuoka, Yamatokoriyama, JP;

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06T007/40 ;
U.S. Cl.
CPC ...
Abstract

An image processing device of the present invention is provided with four kinds of sub masks in total including two kinds in a main scanning direction and two kinds in a sub scanning direction, in a main mask constituted by a plurality of pixels including a target pixel. In the image display device, when determining a target pixel of an inputted image data, a difference in a total density of the two kinds of sub masks in a main scanning direction is added to a normalized difference in total density of the two kinds of sub masks in a sub scanning direction, and a resultant value is compared with a threshold value so as to determine if the target pixel is an edge area or not.


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