Lane line recognition method and device, storage medium and electronic equipment

The invention discloses a lane line recognition method and device, a storage medium and electronic equipment, and the method comprises the steps: obtaining a road image, and carrying out the mean calculation of the gray values of all pixels in the road image; matching a target illumination intensity type corresponding to the gray average value of the road image from a plurality of preset illumination intensity types; determining a plurality of gray value intervals corresponding to the target illumination intensity type and a linear transformation function corresponding to each gray value interval; for each pixel, performing linear transformation on the gray value of the pixel by utilizing a linear transformation function corresponding to the gray value interval where the gray value of thepixel is located; utilizing a horizontal Sobel operator and a vertical Sobel operator to respectively carry out gradient calculation on the gray value of each pixel after linear transformation to obtain a gradient correspondi