If a user is to be notified of detection of a face image, it is so arranged that the user can be so notified without being given an odd impression. To achieve this, the image of a subject is obtained by sensing the image of the subject. The image of the subject obtained contains a portrait image, and the face-image portion of the portrait image is detected by executing processing for detecting a face image. When a face image is detected, an apple mark, strawberry mark or heart mark, etc., is displayed near the detected face image. Instead of enclosing the face image within a rectangular border, the mark is displayed near the face image. The result is that the user is not given an odd impression.