METHOD AND APPARATUS FOR ENHANCING IMAGE COLOR

WIPO Patent Application WO/2020/000546

A1

Disclosed are a method and apparatus for enhancing image color. The method comprises: for any pixel point in an image, acquiring a first saturation degree of the pixel point; processing the first saturation degree of the pixel point according to a first saturation degree transformation function so as to obtain a slope corresponding to the first saturation degree of the pixel point; obtaining a second saturation degree transformation function according to local detail information of the pixel point if the slope is less than a first preset threshold value; processing the first saturation degree of the pixel point according to the adjusted saturation degree transformation function so as to obtain a second saturation degree of the pixel point; computing a target brightness value of the pixel point according to the second saturation degree; and adjusting the original brightness value of the pixel point to the target brightness value. By means of the method, a differentiated saturation degree enhancement manner is applied to a pixel point which easily causes detail loss in an image, so that detail information of the image is kept while the color brightness degree of the image is enhanced, and the definition of the image is improved.

CHEN YUNNA (CN)
PU YIYING (CN)
SYU SHENSIAN (CN)

PCT/CN2018/096499

January 02, 2020

July 20, 2018

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SHENZHEN CHINA STAR OPTOELECT (CN)

G06T5/00

CN107529050A	2017-12-29
CN101325663A	2008-12-17
CN103065551A	2013-04-24
US7734114B1	2010-06-08
EP1017241A2	2000-07-05

SCIHEAD IP LAW FIRM (CN)

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