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:
Mar. 06, 2012
Filed:
Nov. 21, 2008
Joo Hyun Kim, Gyunggi-Do, KR;
Bong Soon Kang, Busan, KR;
Hyun Soo Kim, Busan, KR;
Won Woo Jang, Busan, KR;
Kyung Rin Kim, Busan, KR;
Won Tae Choi, Gyunggi-Do, KR;
Boo Dong Kwak, Gyunggi-Do, KR;
Joo Hyun Kim, Gyunggi-Do, KR;
Bong Soon Kang, Busan, KR;
Hyun Soo Kim, Busan, KR;
Won Woo Jang, Busan, KR;
Kyung Rin Kim, Busan, KR;
Won Tae Choi, Gyunggi-Do, KR;
Boo Dong Kwak, Gyunggi-Do, KR;
Samsung Electro-Mechanics Co., Ltd., Suwon, Gyunggi-do, KR;
Abstract
Provided is an apparatus for improving the sharpness of an image. The apparatus includes an edge detector, an effective edge judging unit, an effective edge classifying unit, an isolated edge judging unit, and a 2-D HPF applying unit. The edge detector calculates an edge value using brightness relation with neighboring pixels with respect to each of pixels of an input image. The effective edge judging unit determines effective edge pixels. The effective edge classifying unit determines weak edge pixels and strong edge pixels. The isolated edge judging unit judges an isolated edge pixel included in an isolated edge. The 2-D HPF applying unit applies a first 2-D HPF to the weak edge pixels, and applies a second 2-D HPF to the strong edge pixels to generate edge strengthening values. The edge strengthening value applying unit adds the edge strengthening values to brightness values of the respective pixels of the input image.