1. A system for determining at least one color of a foreground, the system comprising: at least one processor configured to implement: a motion detector configured to detect a motion region from an image of an area; and a color determiner configured to determine at least one color of the foreground included in the motion region based on a difference between at least one color of the motion region and at least one color of a background which is a region outside the motion region in the image, for displaying the foreground color with the foreground at a display device.