Bank user identity verification method and system based on face recognition mode

The invention relates to a bank user identity verification method and system based on a face recognition mode, and the method comprises the steps: obtaining a face image, collected by a camera, of a user, carrying out the normalization and negation operation of the face image, obtaining a first image, and determining a dark channel graph based on the first image; determining a part of pixel points in the dark channel map, namely a specified number of pixel points ranked in the front in all pixel points ranked from high brightness to low brightness in the dark channel map; obtaining the maximum value in the RGB values corresponding to each pixel point in the partial pixel points, and calculating the average value of the maximum values in the RGB values corresponding to all the pixel points as the ambient light intensity; estimating the transmissivity based on the ambient light intensity and the dark channel map; and substituting the ambient light intensity, the transmissivity and the face image into an atmosph