1. An image processing device comprising: a person recognition unit that recognizes a person included in each of a plurality of captured images; an image evaluation unit that evaluates one or more captured image groups extracted from among the plurality of captured images, based on (i) a degree of appearance for each person of interest recognized by the person recognition unit and (ii) a variance of the degree of appearance which is indicative of an amount of variation within a captured image group of the degree of appearance of each person of interest therein; and an image selection unit that selects a captured image group having the highest result of the evaluation by the image evaluation unit.