Abstract: A displayed image generation unit enlarges, reduces, or scrolls a displayed image in accordance with a command for change from a user. When a clip command receiving unit receives a clip command, a clipping area identification unit identifies an area to be clipped according to the clip command. A thumbnail image generation unit generates a thumbnail image corresponding to the identified area. A positional information acquisition unit acquires positional information identifying a position of the identified area in an image as a whole. A content ID acquisition unit acquires identification information identifying an image when the clipping command is received. A hard disk drive maps the identification information, the thumbnail image, and the positional information and stores the mapped information.

Abstract: A displayed image generation unit enlarges, reduces, or scrolls a displayed image in accordance with a command for change from a user. When a clip command receiving unit receives a clip command, a clipping area identification unit identifies an area to be clipped according to the clip command. A thumbnail image generation unit generates a thumbnail image corresponding to the identified area. A positional information acquisition unit acquires positional information identifying a position of the identified area in an image as a whole. A content ID acquisition unit acquires identification information identifying an image when the clipping command is received. A hard disk drive maps the identification information, the thumbnail image, and the positional information and stores the mapped information.