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 7746505 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 29, 2010

Filed:

May. 06, 2005
Applicant:

Sung-hyun Lim, Seoul, KR;

Inventor:

Sung-Hyun Lim, Seoul, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 15/00 (2006.01); G06T 5/00 (2006.01); H04N 1/407 (2006.01); H04N 1/409 (2006.01);
U.S. Cl.
CPC ...
Abstract

An image quality improving apparatus and method that distinguish an edge of an actual outline imagely recognized in an image inputted via an image input unit from those printed according to dither patterns, to emphasize the actual outline, and thereby acquire the image without distortion. The image quality improving apparatus comprises: a first unit estimating edge pixels of a text area in a predetermined detection area to be edge-detected from an input picture data containing a text and an image; and a second unit judging actual edge pixels based upon a number of edge-estimated pixels in a multiple window area and saturation values of individual edge-estimated pixels, and emphasizing individual actual edge pixels with different edge emphasis coefficients according to saturation values of the actual edge pixels.


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Lim, Sung-Hyun. (2010). Image quality improving apparatus and method using detected edges (U.S. Patent No. 7746505). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7746505

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