Patent ID: 6939011

Claim:
An image processing system comprising: correction means for correcting image signals to adjust a distortion of an image; image projection means for projecting an image based on the image signals; sensing means for sensing the projected image to generate sensing information; brightness-index-value-distribution analyzing means for partitioning the sensed projected image by predetermined image processing units based on the sensing information, detecting a portion of the sensed projected image that includes a image processing unit having a maximum brightness index value among all of the image processing units as a peak position or detecting part of a portion of the sensed projected image in which the image processing units adjacent to one another have the same brightness index values as a peak position, and generating coordinate information which indicates the peak position; and correction-amount derivation means for determining the distortion in the projected image based on the coordinate information, and deriving an amount of correction for the correction means according to a state of the distortion in the projected image, wherein the correction means corrects the image signals based on the amount of correction.