No matter how good a camera or the photographer's technology is, the photographing effect can't compare with what the human eye can see (they are not in the same order of magnitude). As a result, almost all digital photos need to first go through the post-processing of some kind of image processing software before being published finally. However, the known photo processing applications mostly rely on a pile of filters to realize a rapid beautification or repair to photos. Their common fault is - simplex function, not smart enough, requires users to have the relevant experience and skill, and the operation is tedious and time-consuming.