Image processing apparatus, image processing method, and storage medium for at least one of correcting and reducing at least one component of a color blur of an image

摘要

At least one image processing apparatus is provided for preventing inadequate correction of, and to properly correct, a blur component in an image from occurring. The at least one image processing apparatus generates an image recovery filter for correcting chromatic aberration from an optical transmission function (OTF), and corrects the chromatic aberration of a captured image using the image recovery filter. Further, the at least one image processing apparatus calculates characteristics of a color blur of each area in a case where the image recovery filter has been used. Furthermore, the at least one image processing apparatus detects the remaining color blur in an edge of the image on which the chromatic aberration has been corrected using the image recovery filter from a result of calculating the characteristics of the color blur, and removes the color blur.

主权项

1. An image processing apparatus comprising:
a first obtaining unit configured to obtain, according to an image capturing condition of when a captured image is obtained by forming an image on an image sensor via an imaging optical system, an image recovery filter for at least one of correcting and reducing at least one component of a color blur of the captured image; a second obtaining unit configured to obtain, in a case where at least one of correction and reduction of the at least one component of the color blur of the captured image using the image recovery filter has been performed on the captured image, characteristics of at least one of the at least one component and at least another component of the color blur remaining in the captured image, wherein at least one of the characteristics of at least one of the at least one component and the at least another component of the color blur remaining in the captured image is obtained by comparing a predetermined color blur threshold value with a blur amount of at least one of the at least one component and the at least another component of the color blur remaining in the captured image; a first correction unit configured to perform at least one of the correction and the reduction of the at least one component of the color blur of the captured image using the image recovery filter on the captured image; and a second correction unit configured to perform, according to the characteristics of the color blur obtained by the second obtaining unit, correction for at least one of correcting and reducing at least one of the at least one component and the at least another component of the remaining color blur of the captured image on the captured image on which at least one of the correction and the reduction of the at least one component of the color blur of the captured image using the image recovery filter has been performed.