IMAGE PROCESSING METHOD, DEVICE, AND READABLE STORAGE MEDIUM

WIPO Patent Application WO/2023/098251

A1

An image processing method, a device, and a readable storage medium. The method comprises: acquiring from a video stream an image to be processed; converting the image to be processed into a YUV format to obtain a first image, and extracting Y-channel data corresponding to the first image; generating, by using the Y-channel data, brightness correction parameters respectively corresponding to pixels of the first image; performing, by using the brightness correction parameters, gamma brightness correction on the Y-channel data respectively corresponding to the pixels to obtain corrected data; replacing the Y-channel data with the corrected data to obtain a second image, and converting the second image into an RGB format to obtain a processed image; inputting the processed image and a historical adjacent frame optimization image into an evaluation model to obtain an evaluation parameter used for representing a brightness difference between the processed image and the historical adjacent frame optimization image; and if it is determined that the evaluation parameter is not in a target range, determining the processed image as a brightness optimized image corresponding to the image to be processed. The method keeps the brightness of a video stream to be overall stable.

HONG GUOWEI (CN)
DONG ZHI (CN)
JIANG TAO (CN)
DING JIAWEN (CN)

PCT/CN2022/120792

June 08, 2023

September 23, 2022

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TENCENT MUSIC ENTERTAINMENT TECH SHENZHEN CO LTD (CN)

G06T5/00

CN114092360A	2022-02-25
CN107851421A	2018-03-27
CN110111288A	2019-08-09
CN105427257A	2016-03-23
US20070279500A1	2007-12-06

SHENPAT INTELLECTUAL PROPERTY AGENCY (CN)

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