Various embodiments of the present disclosure may store instructions to perform image recognition for a plurality of images, calculate similarity between the plurality of images, based at least partially on a result of the image recognition, create a group including at least two images of the plurality of images, based at least partially on the calculated similarity, determine a sequence for displaying, the at least two images included in the group, based at least partially on similarity between the at least two images included in the group, and output the at least two images onto the display in the sequence. In addition, various other embodiments are possible.