1. An image processing apparatus comprising: scene change detection means including correlation value calculation means for calculating a correlation coefficient between mutually adjacent frames in said received images; and determination means for determining whether scene change has occurred based on said correlation coefficient for detecting scene change of one or more received images; movement detection means for detecting a movement in each of said received images; and display image generation means for determining a period of each continuous scene based on the scene change detected by said scene change detection means and superimposing said received images of the period of said continuous scene based on the movement in each of said images detected by said movement detection means in the period of said continuous scene, and generating a display image which has a wider field angle than said received images and in which a position of each of said received images is slid in response to said movement in each, of said images, wherein the display image generation means generates the display image by sequentially superimposing each of the received images of the period in a reverse order of time and supplies signals of the display image to a plurality of projectors, each projecting a portion of the display image.