| 摘要 |
When user gives instruction to perform front photographing correction (keystone distortion correction) while a digital camera displays an image photographed and stored by itself on a monitor in play mode, the digital camera identifies quadrangular contours to be used as correction reference, from the displayed image. The digital camera moves a quadrangular frame to be overlaid upon the identified contours in accordance with user's switching operation, thereby allowing the user to select a desired contour. The digital camera writes coordinate information of four vertexes of the contour selected by deciding operation, in the header of the image file of the displayed image. Thereafter, when front photographing correction is performed on the image by an image processing apparatus, the coordinate information is read from the image file, so that correction is performed based on a quadrangle represented by the coordinate information and having the four vertexes.
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