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:
Jul. 24, 2012
Filed:
Mar. 24, 2009
Toru Kawabe, Hachioji, JP;
Toru Kawabe, Hachioji, JP;
Abstract
Described is an image processing apparatuses, which makes it possible to accurately remove a periodicity from a halftone dot pattern included in an image. The apparatus includes: a periodicity pattern analyzing section to acquire periodicity information indicating the periodicity of the halftone dot pattern; a smoothing area determining section to determine a smoothing area, constituted by either a pair of rectangular areas contacting with each other or a single rectangular area, based on the periodicity information; a spatial filter creating section to create a spatial filter within which the smoothing area is includible, and in which a weighted coefficient of each of pixels is established corresponding to an overlapping area of a concerned pixel overlapping with the smoothing area; and a smoothing calculation section that applies a convolution arithmetic calculation processing to the image data representing the processing objective image with the spatial filter.