1. A face image detection device, comprising: a face detection unit operable to extract face images from a plurality of stored images; a judgment area determining unit operable to, for each of the face images, (i) determine a judgment area for judging whether or not a particular face image among the face images is in a front view direction or a side view direction within a plurality of predetermined view directions other than the front view direction, and (ii) determine a view direction for the particular face image among the face images, respectively; and a face judgment unit operable to judge, for each of the face images, whether or not the particular face image among the face images has a size greater than a predetermined threshold size in the judgment area, so that when the particular face image has a size greater than the predetermined threshold size, according to a respective view direction, the particular face image is accurately analyzed, wherein said judgment area determining unit determines a ratio of a size of the judgment area to a size of a stored image for each of the plurality of stored images according to the respective view direction of the particular face image extracted from the stored image, and the predetermined threshold size is different according to the respective view direction of the particular face image.