Patent ID: 8174586

Claim:
An image file generating apparatus comprising: a main image data acquisition unit configured to acquire main image data; a display-image data generator configured to generate display-image data based on the main image data or image data which is source data of the main image data; and an image file generator configured to generate an image file which includes a main header, the main image data, a display-image header and the display-image data, and in which the display-image data is stored in an area other than an area storing the main header, wherein the main header stores main image information which is information on the main image data and first display-image information which is image information on the display-image data, the display-image header stores second display-image information which is image information on the display-image data, the main image information and the second display-image information share at least one item of image information, and the shared item of image information includes different value between the main image information and the second display-image information.