Sughrue Mion, PLLC
Method and apparatus for controlling contrast
A method and apparatus for contrast control is provided. The apparatus includes a cumulative density function which provides a second cumulative density function modified from a first cumulative density function based on a first luminance histogram of an input image; a transformer function provider which provides a transform function based on the first cumulative density function and the second cumulative density function; a compensation unit which compensates the transform function based on a predetermined illumination level; and a transform unit which transforms a luminance distribution of the input image based on the compensated transform function.
Samsung Electronics Co., Ltd.
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H04N H04N G06T G06T
inventional inventional inventional inventional
Hyun-wook Du-sik Young-ran Seong-deok
Ok Park Han Lee