A system for creating screen savers based on video images is provided. An object image that may move around in a video image is separated from backgrounds. An MPEG-4 file of the video image is created and stored in a computer. The MPEG-4 file is uploaded from the computer to a server connected to the computer through a network. The server detects motions of the object image in the MPEG-4 file, creates a screen saver based on the detected motions, and stores the screen saver. The computer may download the screen saver stored in the server and install the screen saver on the computer, and displays the video image as the screen saver on a screen.