1. An image-taking apparatus comprising: an image-taking device which takes an image of a subject; a display device which displays the image taken by the image-taking device; a face detection device which detects a face of a person who is the subject, from the taken image; an operation member for face detection control which gives an instruction to set on/off of face detection processing performed by the face detection device; and a display control device which controls the face detection device to execute the face detection processing for an image taken when the face detection processing is set to on, and causes the display device to display a face image including a face area detected from the taken image.