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. 30, 1999
Filed:
May. 12, 1997
Yoshiaki Hanyu, Souka, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image processing device converting a binary image into multi-valued output image includes an image-area-separation processing unit detecting shadow areas in the binary image, wherein the shadow areas are graphic or photographic image areas having a number of lines greater than a predetermined number, an outline-correction processing unit correcting jagged edges in the binary image to generate a corrected image, an multi-value processing unit converting the binary image into a multi-valued image through a filtering process, and a selection unit selecting the multi-valued image for the shadow areas and the corrected image for areas other than the shadow areas so as to generate the multi-valued output image.