Brinks Gilson & Lione
Method and apparatus for adjusting image brightness
Provided are a method and an apparatus for adjusting image brightness. The method includes: acquiring a single-channel brightness image based on grayscales of each channel of an image to be processed; performing Gaussian filtering on the single-channel brightness image to acquire a Gaussian filtered image; adjusting grayscales of the Gaussian filtered image based on the grayscales of the Gaussian filtered image and a preset proportion; acquiring a grayscale change rate of each pixel with respect to the Gaussian filtered image after adjustment and the Gaussian filtered image before adjustment; and processing the image to be processed based on the grayscale change rate of each pixel to acquire a processed image.
TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
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Baoli Haifeng Shimin Jianyu Xianying
Li Deng Hu Wang Li