Image processing apparatus, control method therefor, and program

Abstract

An image processing apparatus which corrects input image data on the basis of the image data and foreign substance information including information associated with a position and a size of a foreign substance adhering near an image sensor in an image capturing apparatus which has captured the image data includes a correction unit which corrects the image data on the basis of the image data and the foreign substance information so as to reduce an influence of a shadow of the foreign substance cast in the image data, a uniformity determination unit which determines uniformity of an image in a region surrounding the foreign substance in the image data, and a control unit which, when the uniformity determination unit determines that the uniformity is lower than a predetermined value, prevents the correction unit from correcting the image data.

1 - 4 . (canceled) 
     
     
         5 . An image capturing apparatus comprising:
 an image capture unit configured to capture an object image, the image capture unit obtaining normal image data and foreign substance detection image data;   a foreign substance detection unit configured to detect, from the foreign substance detection image data, foreign substance information that is information of a position and a size of a foreign substance in an image sensing plane of the image capture unit;   a lens information acquisition unit configured to acquire lens information of a lens used upon capturing the object image; and   a recording unit configured to record the normal image data obtained by capturing the object as a normal image data file,   wherein in a case when said recording unit records the normal image data, (1) the foreign substance information, (2) the first lens information of a lens used upon capturing the foreign substance detection image, and (3) the second lens information of a lens used upon capturing the normal image are written in a header region of the normal image data file, whereby (1) the foreign substance information, (2) the first lens information of the lens used upon capturing the foreign substance detection image, and (3) the second lens information of the lens used upon capturing the normal image are recorded in association with the normal image data.   
     
     
         6 . A method of controlling an image capturing apparatus having an image capture unit configured to capture an object image, the image capture unit obtaining normal image data and foreign substance detection image data, comprising the steps of:
 detecting, from the foreign substance detection image data, foreign substance information that is information of a position and a size of a foreign substance in an image sensing plane of the image capture unit;   acquiring lens information of a lens used upon capturing the object image; and   recording the normal image data obtained by capturing the object as a normal image data file,   wherein in a case when the normal image data is recorded, (1) the foreign substance information, (2) the first lens information of a lens used upon capturing the foreign substance detection image, and (3) the second lens information of a lens used upon capturing the normal image are written in a header region of the normal image data file, whereby (1) the foreign substance information, (2) the first lens information of the lens used upon capturing the foreign substance detection image, and (3) the second lens information of the lens used upon capturing the normal image are recorded in association with the normal image data.   
     
     
         7 . A non-transitory computer-readable medium for storing a program characterized by causing a computer to execute a method of controlling an image capturing apparatus having an image capture unit configured to capture an object image, the image capture unit obtaining normal image data and foreign substance detection image data, comprising the steps of:
 detecting, from the foreign substance detection image data, foreign substance information that is information of a position and a size of a foreign substance in an image sensing plane of the image capture unit;   acquiring lens information of a lens used upon capturing the object image; and   recording the normal image data obtained by capturing the object as a normal image data file,   wherein in a case when the normal image data is recorded, (1) the foreign substance information, (2) the first lens information of a lens used upon capturing the foreign substance detection image, and (3) the second lens information of a lens used upon capturing the normal image are written in a header region of the normal image data file, whereby (1) the foreign substance information, (2) the first lens information of the lens used upon capturing the foreign substance detection image, and (3) the second lens information of the lens used upon capturing the normal image are recorded in association with the normal image data.