1. A method comprising: under control of one or more processors configured with executable instructions, determining a first intrapersonal setting of at least a portion of a first image; determining a second intrapersonal setting of at least a portion of a second image; determining, based at least in part on a threshold, whether the first intrapersonal setting and the second intrapersonal setting are comparable; and performing direct appearance matching between the first image and the second image when the first intrapersonal setting and the second intrapersonal setting are determined to be comparable.