Frame images captured in a continuous manner are acquired, and temporarily stored. Characteristic points of faces in the acquired frame images are extracted. A sum (expression change amount) of distances between characteristic points of the face (face parts) in a current frame and the characteristic points of a preceding frame is calculated. The target frame image in which the expression change amount is largest, and m frame images preceding and following the target frame image in which the expression change amount is largest are extracted as best image candidates. A best shot image is extracted from the best image candidates and stored in a storage medium. Thus, only an image (best shot image) which contains a face which a user wishes to record can be efficiently extracted from among images captured in a continuous manner, and stored.