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. 04, 2014
Filed:
Dec. 23, 2010
Joo Hyun Kim, Gyunggi-do, KR;
Won Tae Choi, Gyunggi-do, KR;
Bong Soon Kang, Busan, KR;
Sung Mok Lee, Busan, KR;
Won Woo Jang, Busan, KR;
Hak Yong Han, Busan, KR;
Joo Hyun Kim, Gyunggi-do, KR;
Won Tae Choi, Gyunggi-do, KR;
Bong Soon Kang, Busan, KR;
Sung Mok Lee, Busan, KR;
Won Woo Jang, Busan, KR;
Hak Yong Han, Busan, KR;
Samsung Electro-Mechanics Co., Ltd., Gyunggi-Do, KR;
Dong-A University Research Foundation for Industry-Academy Cooperation, Busan, KR;
Abstract
An apparatus for enhancing the visibility of color images includes: a luminance value cumulative distribution calculator that calculates a cumulative distribution function of the number of pixels from a minimum value of luminance values; a baseband signal determining unit that determines baseband signal pixels having luminance values smaller than a threshold level; a luminance compensation value generator that generates luminance compensation values to apply the lower-level luminance compensation values as the pixels have higher-level luminance values, for the pixels having the luminance values larger than the threshold level; a luminance gain generator that determines a luminance gain applied to the luminance compensation values according to a mean luminance values of the input images and the level of the luminance values of the pixels to which the luminance compensation values are applied; and a luminance value enhancing unit that summing the luminance compensation values including the gain with the luminance values.