| 摘要 |
In order to extract a still image from a motion image in relation to music included in the motion image, structural information indicating a structure of music included in a motion image read in by an image read-in unit is obtained by a structural information obtaining unit. A timing for extracting a still image representative of the motion image is set by a timing setting unit based on the structural information and a predetermined image extraction parameter. Then, a frame corresponding to the determined timing is extracted by an extraction unit as the still image.
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