1. A red-eye detection device for detecting from an image a red-eye in which at least part of the pupil is displayed red, comprising: a red-eye candidate detection section for detecting a red-eye candidate that can be estimated to be said red-eye, by identifying a feature of the pupil that has a region displayed red from among features of said image; a red-eye pair specification section for specifying said red-eye candidate as a pair of a right red-eye candidate equivalent to a right eye and a left red-eye candidate equivalent to a left eye, using information on a face region obtained from said image; and an isolated red-eye candidate check section for checking whether an isolated red-eye candidate, detected by said red-eye candidate detection section but not specified as said pair by said red-eye pair specification section, is a true red-eye.