Detail-preserving multi-exposure image fusion algorithm in static scene

The invention discloses a detail-preserving multi-exposure image fusion algorithm in a static scene. The algorithm comprises the following steps: firstly, acquiring a plurality of exposure images in the static scene; inputting the exposure images into an exposure sequence according to an exposure increasing sequence; calculating an absolute exposure weight of the exposure image according to the exposure parameter of each pixel of the exposure image in the input exposure sequence to obtain a weight distribution diagram; performing threshold processing on pixels in the weight distribution diagram, and reserving moderately exposed pixels; smoothing the weight distribution diagram after threshold processing by using a multi-resolution fusion tool; according to the invention, the weight distribution diagram is obtained based on the absolute exposure weight, the fusion process is guided by the image Laplace pyramid after threshold processing and correction, the final fusion result is obtained, information of most o