Patent ID: 6952287

Claim:
An image data correction method for correcting nonuniformity of luminance in an image display region which displays an image in accordance with input image data, comprising the steps of: storing reference correction data, which correspond to a plurality of specific levels among levels available for the input image data, for each of a plurality of predetermined reference coordinates in the image display region; interpolating the reference correction data according to level to generate first correction data which correspond to the levels available for the input image data, for each of the plurality of reference coordinates, and storing the first correction data in correspondence to the reference coordinates and the levels; selecting, from the stored first correction data, data which correspond to a plurality of reference coordinates surrounding the coordinates of the input image data in the image display region and which correspond to the level of the input image data; interpolating the selected first correction data according to the coordinates to generate second correction data which correspond to the input image data; and adding the second correction data to the input image data.