| 摘要 |
E-mail to which an image file has been attached is transmitted from a mobile telephone, which is equipped with a camera, to an image server. The image server receives the e-mail and, if the image file is not an EXIF file, formats the file as an EXIF file. The image data is read from the EXIF file and thumbnail image data is generated by the image server. The generated thumbnail image data is recorded in the header area of the EXIF file. The EXIF file is then transmitted from the image server to an image file receiving apparatus. Since thumbnail image data is not contained in the header of the image file transmitted to the image server from the mobile telephone having the camera, the amount of data in the image file is reduced.
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