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. 11, 2005
Filed:
May. 30, 2000
Hiroyuki Morimatsu, Kurume, JP;
Hiroyuki Morimatsu, Kurume, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
An image processing method and an image processing apparatus for generating a binary image by binarizing the pixels of multlvalued tones are disclosed. An intended pixel, at least a pixel adjacent to the intended pixel and the density difference between the intended pixel and the adjacent pixel are determined. In the case where the density difference is larger than a predetermined setting, the intended pixel is determined as an edge portion. The binarization threshold for the intended pixel constituting an edge portion is set lower, the larger the edge intensity with the adjacent pixel. Thus, the edge reproducibility of the binary image after error spreading is improved.