In an arrangement in which an image captured by photography is recorded on new-type
photographic film having an information recording zone for magnetically recording
information relating to the film or frames on the film, information concerning
the aspect ratio of the image is exploited in an effective manner and the aspect
ratio is capable of being altered at will. The image recorded on the new-type photographic
film and the aspect ratio information in the information recording zone are read
by a film scanner. Original digital image data obtained by the reading operation,
length X and width Y of the image and effective image size data (length A and width
B) generated from the aspect ratio information are recorded on a floppy disk or
optical disk by a disk device. When an original image represented by the original
digital image data obtained from the floppy or optical disk is displayed, the size
thereof is made that stipulated by the effective image size. The data representing
the effective image size on the disk are rewritten in response to an entered alteration command.