| 摘要 |
PROBLEM TO BE SOLVED: To improve the judging precision of the top/bottom of a picture by deciding a rotary angle for matching the top/bottom of a discriminated picture in one direction, rotating the picture in accordance with the rotary angle and storing the rotated picture in the picture storing part. SOLUTION: A picture 1 before changing is read from a picture storing part and the picture is judged by picture recognition by a top/bottom detecting part. The judgment of the top/bottom of the picture by the top/bottom detecting part is executed by the combination of plural analytic methods based on different information in a picture. At least two of the analytic methods based on hue information, luminance information, composition information are included in the combination. Based on information of the top/bottom direction of a picture obtained from the top/bottom detector, a rotary angle deciding part decides the rotary angle of the picture for matching the top/bottom of the picture with those of another picture. In accordance with the decided rotary angle, a picture rotating part rotates a picture. A rotated changed picture 3 is stored in a picture storing part.
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