1. A scenario simulation system for a multimedia device, comprising: an outline detection device configured to analyze and separate a plurality of images retrieved from an image source into a plurality of foreground and background images; a foreground storage medium configured to store the foreground images; a background storage medium configured to store the background images; a foreground selector configured to select a foreground image from the foreground storage medium; a background selector configured to select a background image from the background storage medium; an image mixer configured to mix the foreground image with the background image as an output image; and an image output module configured to transmit the output image to a remote multimedia device for replacing a real image on the remote multimedia device.