Patent ID: 7243101

Claim:
A computer readable medium storing thereon a program for managing a plurality of image data units, comprising: an image data acquiring module instructing a computer to acquire said plurality of image data units; an attribute information acquiring module instructing said computer to acquire attribute information units respectively associated with said image data units in such a manner that each of said attribute information units corresponds to an associated one of said image data units; an image data classifying module instructing said computer to classify said image data units into a plurality of image-data groups based on a first attribute information unit of said attribute information units, to select an image-data group of the plurality of image-data groups having a number of image data units greater than or equal to a threshold number, and to continue to classify the selected image-data group into a plurality of image-data subgroups based on a second attribute information unit of said attribute information units, which is different from the first attribute information unit; a thumbnail image creating module instructing said computer to create thumbnail image data units for displaying said plurality of image data units as thumbnail images; and a display module instructing said computer to display said thumbnail images for each of said plurality of image-data groups and said plurality of image-data subgroups.