Image correction apparatus and image correction method

An image correction method of correcting an input image to generate a target image with less blur than the input image, said image correction method comprising:

• dividing the input image into a plurality of adaptive regions by determining regions having blur in common as one adaptive region based on pixel values of pixels included in the input image, and calculating, for each of the adaptive regions, a point spread function representing characteristics of image blur;
• interpolating, using the calculated point spread function, a point spread function for a pixel located between representative pixels each representing a corresponding one of the adaptive regions;
• and
• correcting the input image using the point spread functions available after said interpolating, so as to generate the target image.

An integrated circuit which corrects an input image to generate a target image with less blur than the input image, said image correction apparatus comprising:

• an adaptive region division unit configured to divide the input image into a plurality of adaptive regions by determining regions having blur in common as one adaptive region based on pixel values of pixels included in the input image, and to calculate, for each of the adaptive regions, a point spread function representing characteristics of image blur;
• a point spread function interpolation unit configured to interpolate, using the calculated point spread function, a point spread function for a pixel located between representative pixels each representing a corresponding one of the adaptive regions;
• and
• an image correction unit configured to correct the input image using the point spread functions available after the interpolation, so as to generate the target image.