1. A method for face image processing using a plurality of imaging units, the plurality of imaging units providing a first plurality of images of a face of a person to be identified, the method comprising: detecting, using a detecting unit, a face feature point from each of the first plurality of images, respectively, to detect a face region; extracting a face feature from each of a second plurality of images each corresponding to the detected face region, to thereby extract a plurality of face features; comparing a first one of the extracted face features with a second one of the extracted features to judge whether a subject of the first plurality of images is a photograph; calculating a similarity measure based on a face feature of a specific person previously registered and a face feature determined from the extracted face features to recognize the person to be identified; and providing a recognition result based on the similarity measure.