| 摘要 |
An image data processing apparatus 20 for processing image data captured by at least one scanner from the back and front sides of a scanned medium (such as a check 2) to appropriately separate a media area where the scanned medium is present and a non-media area where the scanned medium is not present even when the edges of the scanned medium are printed a dark color, comprising an image area discriminator 22 for identifying a media area in which the scanned medium is present and a non-media area in which the scanned medium is not present from the image data on the front and back sides of the scanned medium; an area comparison unit 23 for comparing the size of the non-media area on the front side and the non-media area on the back side of the scanned medium respectively, with said comparison unit defining the smaller non-media area as a masking area; and a cropping control unit 24 for generating image data from the image data on the front side and/or from the image data on the back side thereof not containing image data in the masking area.
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