Patent ID: 7982774

Claim:
An image processing apparatus comprising: a reference image storing unit configured to store a plurality of past image data, photographed by a video input unit, as reference image data; a moving object detecting unit configured to detect an image difference based on one of a difference of each pixel and a difference of each pixel in small image areas between image data photographed by the video input unit and the reference image data; and an image correcting unit configured to correct a luminance of the reference image data by determining an average luminance value for the reference image data, calculating a luminance difference between the average luminance value for the reference image data and an average luminance value for the image data, and adding the luminance difference to each pixel in the reference image data, wherein the moving object detecting unit detects a moving object in the image data by correlating pixel luminance values corresponding to the reference image data and pixel luminance values corresponding to the photographed image data, the pixel luminance values being from an area of the image difference, and comparing a sequence of image difference values to determine a temporal continuity of the image difference.