1. An image recognition device for performing image recognition including object identification on each of a plurality of continuously input images, comprising: a recognition unit which sets a plurality of faces registered in advance as recognition candidates, and which recognizes a specific recognition target registered in advance which matches with one of the recognition candidates in each of the continuously input images according to a predetermined recognition condition; and a recognition condition changing unit which changes a content of the predetermined recognition condition in response to recognition of the specific recognition target by the recognition unit in one of the continuously input images.