An image processing system for use with a camera that is supported by a platform and a display device that is visible by a player at whom the camera is aimed, comprising:
- a region specifying component that specifies a plurality of playing regions that are depicted on the display device, each playing region having a boundary that is set in accordance with an image from the camera representing an edge of the platform;
- a detecting component that detects, in the image from the camera, a specific image of an object that is movable by the player;
- an assigning component that assigns sounds to the playing regions;
- and
- a signal outputting component which, when the specific image overlaps one of the playing regions, outputs a signal representing the sound that has been assigned to that playing region.