1. An apparatus comprising: an acquisition unit configured to acquire an image group including a plurality of images; a specifying unit configured to specify feature information of each of the images; a generation unit configured to generate a plurality of layout candidates by arranging images selected from the acquired image group; an evaluation unit configured to evaluate each of the layout candidates generated by the generation unit based on a plurality of evaluation standards including an image evaluation based on the feature information of each image arranged in the layout candidate and an overall evaluation of the layout candidate; and a determination unit configured to select and determine a layout to be output from the plurality of layout candidates based on a result of evaluation by the evaluation unit.