Laser power compensation method and related equipment

The invention provides a laser power compensation method and related equipment. The method comprises the following steps: step 1, processing a first gray scale into a first binary image; step 2, sequentially shooting K areas of each first binary image band by using a camera device to obtain N groups, each group comprising K first binary image band block maps, N * K first binary image band block maps in total, calculating K first dot densities of the K first binary image band block maps of each group, calculating a first dot density mean value according to the K first dot densities, and calculating a first dot density mean value according to the K first dot densities; n first dot density mean values are obtained in total; and step 3, selecting a laser corresponding to the first dot density mean value which greatly deviates from the two adjacent first dot density mean values from the N first dot density mean values as a target laser, and performing power compensation on the target laser, so that the chromatic a