To make it possible to obtain an appropriate image when a sleeping face is photographed.

A face is detected from a preview image, and further, it is determined whether the face is a sleeping face. Then, when it is a sleeping face, camera shake prevention photographing based on image composition is performed. Also, when it is a sleeping face and has a smiling expression, best shot photographing may be performed instead of camera shake prevention photographing based on image composition. This makes it possible to obtain an appropriate image even in a dim environment or in a difficult photographing posture such that a sleeping face is photographed.