Vehicle driving image enhancement processing method in black light environment and auxiliary driving system

The invention discloses a vehicle driving image enhancement processing method in a black light environment and an auxiliary driving system. The method comprises the steps of obtaining a first grayscale image and performing global histogram equalization to obtain a second grayscale image; identifying a connected domain of the first grayscale image and the second grayscale image to obtain a first region and a second region; based on a first connected region in the first region, positioning a target pixel point of the second grayscale image and a second connected region to which the target pixel point belongs according to a pixel point coordinate in the first connected region, and forming a second region set by all the corresponding second connected regions; the target key value pair unit is filled with the first communication regions and the second region set of the first communication regions in sequence until filling of all the first communication regions is completed; based on each key value pair unit, deter