Patent ID: 8971622
Filing Date: 2015-03-03
Classification: H04N

Abstract:
1. An image processing apparatus for correcting degradation in image quality, due to aberrations of an optical imaging system of an image capture apparatus, in an image which has been captured by the image capture apparatus and in which each pixel has one of predetermined color components, said image processing apparatus comprising one or more processors that function as: a first pixel interpolation unit configured to execute pixel interpolation processing for a predetermined reference color component of the image, the predetermined reference color component being one of the predetermined color components; a first obtaining unit configured to obtain, for each pixel that corresponds to any other color component than the reference color component of the image, a first color difference using a value of the corresponding color component and a value of the reference color component for the pixel that is obtained by the pixel interpolation processing by said first pixel interpolation unit; an image recovery processing unit configured to apply an image recovery filter based on a point spread function of the optical imaging system to each color component of the image; a second pixel interpolation unit configured to execute pixel interpolation processing for the reference color component of the image to which the image recovery filter has been applied; a second obtaining unit configured to obtain, for each pixel that corresponds to any other color component than the reference color component of the image to which the image recovery filter has been applied, a second color difference using a value of the corresponding color component and a value of the reference color component for the pixel that is obtained by the pixel interpolation processing by said second pixel interpolation unit; and a correction unit configured to correct the image to which the image recovery filter has been applied, according to a difference between the first color difference and the second color difference.