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.:

US 8306352 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 06, 2012

Filed:

Nov. 21, 2006
Applicants:

Jung Hun Jung, Goonpo-si, KR;

Yong Seok Cho, Seoul, KR;

Inventors:

Jung Hun Jung, Goonpo-si, KR;

Yong Seok Cho, Seoul, KR;

Assignee:

HUMAX Co., Ltd., Seongnam-si, Gyeonggi-do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/40 (2006.01);
U.S. Cl.
CPC ...
Abstract

Disclosed is an edge sharpening method using maximum and minimum filters. In an embodiment of the present invention, the edge region of an input image signal is detected, minimum and maximum signals are generated for the detected edge region, the input signal of the detected edge region is compared with the average signal of the minimum and maximum signals, and the average of the input signal and the maximum signal is output if the input signal is larger than the average signal, the average of the input signal and the minimum signal is output if the input signal is smaller than the average signal, and the input signal is output if the input signal is equal to the average signal. Meanwhile, median filtering, using a window perpendicular to the direction in which the edge sharpening is performed, is performed on the region on which the edge sharpening has been performed.


Find Patent Forward Citations

Jung, Jung. (2012). Image processing method and apparatus (U.S. Patent No. 8306352). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8306352

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