Images are laid out appropriately according to the sizes of faces of people pictured therein. A user selects a plurality of images to be laid out on a single background image. A layout determining section selects a template having the same number of image insertion regions as the number of images selected by the user, from among a plurality of templates, each having one or more image insertion regions of various sizes. Whether faces are included in the images is judged. Image layout is determined such that images that include faces are inserted in image insertion regions of the template having greater sizes as the size of a representative face is smaller; and images that do not include faces are inserted into image insertion regions of the template having smaller sizes.