Illumination adaptive image enhancement method, system and equipment

The invention discloses an illumination adaptive image enhancement method, system and device, and the method comprises the steps: inputting a to-be-processed image into a trained depth curve estimation network, and correspondingly outputting a plurality of first enhanced images; wherein the depth curve estimation network is obtained by taking a training image as input and a plurality of second enhanced images as output, calculating a first loss function for the plurality of second enhanced images, performing parameter updating and performing training for a plurality of times; and according to a preset intensity grade relationship, obtaining an intensity grade corresponding to the attribute of the to-be-processed image, and selecting a first enhanced image corresponding to the intensity grade from the plurality of first enhanced images as an optimal image enhancement result. According to the method, the image can be adaptively enhanced, the labor cost can be saved, and the image enhancement stability and the i