Patent ID: 7369262

Claim:
An image reproduction device which displays an image file storage medium having stored therein a plurality of image files with main image information and thumbnail image information in an arbitrary format, and an automatic reproduction file containing at least the description as to whether the automatic reproduction of said plurality of the image files is permitted or not and order in which said image files are reproduced, the device comprising: a read unit which reads each file information stored in said image file storage medium; a control unit which performs a control operation in such a manner that said read unit reads from said image file storage medium a thumbnail image of the image file which contains the description of automatic reproduction in the automatic reproduction file; an image development unit which develops the image file read by said read unit; a storage element into which the image data developed by said image development unit are written; and an image display unit which reads and displays a list of the thumbnail images written in said storage element; wherein said control unit reads thumbnail images of all the image files from said image file storage medium, and said image development unit develops the thumbnail image of the image file which contains the description of automatic reproduction in the automatic reproduction file read by said read unit as a normal image and, also, develops a thumbnail image of the image file which contains the description of non-automatic reproduction in said automatic reproduction file as an image difficult to recognize; wherein said image development unit comprises: a file extension unit which is supplied with the image file information stored in said image file storage medium to extend the image file; a write address generating unit which generates a write address for said storage element; and a read address generating unit which generates a read address for said storage element, and when developing the thumbnail image of the image file which contains the description of non-automatic reproduction in the information of said automatic reproduction file, the write address for said storage element is generated discontinuously in accordance with a predetermined rule by said write address generating unit.