Low-illumination image optimization method and device and storage medium

• Main Authors: CHEN LONG, PENG GUANZHEN
• Format: Patent
• Language: Chinese; English
• Published: 16.03.2021
• Subjects: CALCULATING; COMPUTING; COUNTING; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHYSICS

The invention discloses a low-illumination image optimization method. The method comprises the following steps: acquiring an original color image and performing gray processing to obtain a gray image;performing polynomial conversion on the grayscale image to obtain a polynomial conversion result; sequentially taking a plurality of different Gaussian convolution kernel functions and processing thegrayscale image according to the Gaussian convolution kernel functions to obtain a corresponding grayscale ratio image; according to the polynomial conversion result and each gray scale ratio image,obtaining a corresponding intermediate result gray scale image and obtaining a gray scale coefficient image; processing an original color image to obtain a plurality of channel sub-images, obtaining each channel contrast image in combination with a grayscale image, obtaining a corresponding channel optimization image according to each channel contrast image and a grayscale coefficient image, and finally combining the plural