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. 05, 2010
Filed:
Apr. 21, 2006
Koji Kita, Iwade, JP;
Koji Kita, Iwade, JP;
Noritsu Koki Co., Ltd., Wakayama-Shi, JP;
Abstract
An image processing module restricts granular noise present in photographic image data obtained by digitization of an image by utilizing a weighted average filtering operation. The module comprises a target pixel setting section, a difference value calculation section, a weight coefficient determining section and a filtering operating section. The target pixel setting section sets one target pixel after another from a group of pixels together constituting the photographic image data. The difference value calculating section calculates a difference value between a pixel value of the target pixel and each peripheral pixel present within a calculating area centering about the target pixel and is used for the weighted average filtering operation. The weight coefficient determining section determines a weight coefficient for use in the weighted average filtering operation, in accordance with the difference value. The filtering operating section obtains a corrected pixel value for the target pixel by effecting the weighted average filtering operation with the weight coefficient.