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:
May. 13, 2008
Filed:
Dec. 11, 2000
Kazuyuki Nako, Soraku-gun, JP;
Kazuyuki Nako, Soraku-gun, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
In an image processing method for reducing an input image while preventing moire without deterioration of image quality, presence/absence of periodicity is detected for each pixel on the input image, and if there is periodicity, an image period is detected (S). Sample points are sequentially extracted from the input image at prescribed sampling intervals (S). A value is obtained by multiplying the image period by n (n is a natural number) that exceeds the sampling interval, to set a smoothing area. Pixels around a sample point is smoothed in the set smoothing area. The pixel value for a reduced image is obtained (S). If there is an unprocessed sample point (NO at S), the step goes back to S, and the next sample point is subjected to a similar process. If the process is terminated for all the sample points (YES at S), the reduced image is output.