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.

Date of Patent:
Dec. 16, 2014

Filed:

Jun. 26, 2007
Applicants:

In-ji Kim, Yongin-si, KR;

Hyun-wook OK, Seoul, KR;

Chang-yeong Kim, Yongin-si, KR;

Du-sik Park, Suwon-si, KR;

Young-ran Han, Suwon-si, KR;

Won-hee Choe, Gyeongiu-si, KR;

Inventors:

In-ji Kim, Yongin-si, KR;

Hyun-wook Ok, Seoul, KR;

Chang-Yeong Kim, Yongin-si, KR;

Du-sik Park, Suwon-si, KR;

Young-ran Han, Suwon-si, KR;

Won-hee Choe, Gyeongiu-si, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/57 (2006.01); H04N 5/58 (2006.01); H04N 5/00 (2011.01); G06T 5/00 (2006.01);
U.S. Cl.
CPC ...
G06T 5/009 (2013.01); G06T 2207/10024 (2013.01); G06T 2207/20081 (2013.01);
Abstract

An image processing apparatus and method to reduce the deterioration of visibility of an image displayed on an image display device occurring under various lighting conditions when the brightness of ambient light is brighter than that of the image display device, and includes a sensor to sense the brightness of an external light, a unit to store a luminance-contrast model curve representing an optimal contrast value for a particular luminance for each brightness of the external light, a unit to determine a target luminance value according to the sensed brightness of the external light, to obtain a contrast value corresponding to the target luminance value with reference to the luminance-contrast model curve corresponding to the sensed brightness, and to adjust an input image to have the target luminance value and the obtained contrast value, and a unit to adjust the saturation of the adjusted input image according to the target luminance value and the obtained contrast value.


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