Infrared imaging technology of objects has been widely used to elucidate the structure of drug molecules. When observing objects, especially objects with extreme temperature difference, infrared focal plane imaging systems often have difficulties in evenly describing the grayscales of different temperature sections and capturing enough details. Aimed at this problem, in this study we proposed a self-adaptive dual-local area enhancement algorithm. This paper details the algorithm from two aspects, spatial distribution and statistical grayscale c...