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:
Oct. 07, 1997
Filed:
May. 20, 1994
Hiroshi Maeda, Kashihara, JP;
Toshihiro Okahashi, Kashihara, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
This invention provides an image processing device which is capable of discriminating an edge even on a faint image by changing the edge discriminating parameters according to the gray-level values set in its control portion. An edge discriminating circuit discriminates an edge on an image and a gray-level converting portion then conducts gray-level conversion of the image and determines changeable set values of gray-levels. After this an edge discriminating circuit conducts the discrimination of an edge of the image. In this case the set values of gray-levels are given to the edge discriminating circuit to enable the latter to easily discriminate the edge portion having a low variation when the image has lowered gray-levels.