1. An image layout apparatus comprising: image decision means for deciding a plurality of images to be laid out on one background image; a resion decision means for judging presence of face in each of the images and for deciding a display region of a predetermined range including at least one face for each image showing the presence of face among the images according to the number of faces therein and according to a distance between the faces in the case where the number of the faces is larger than 1; and layout image generation means for extracting the decided display regions from the corresponding images and for generating a layout image by laying out the extracted display regions on the background image.