An object of the present invention is to simplify an input operation for creating a report for a subject. An image display apparatus according to the present invention has an image display function for displaying a series of images capturing the alimentary canal of the subject along a time-series, and includes a group processor 16d and a report preparing unit 16c. The group processor 16d sets a plurality of images selected from the series of images to be one group to enable a predetermined process per unit of such group. The report preparing unit 16c, with respect to the plurality of images which are grouped by the group processor 16d, appends a desired comment on the plurality of images by performing a predetermined process per unit of the group.