Image processing method and apparatus

An image processing apparatus that obtains input image data from an image optically taken with a taking lens and that performs specified processing schemes on the obtained input image data to obtain output image data suitable for producing an output image, comprising:

• information acquisition means for acquiring an information about the taking lens used to take said image;
• initial correcting means for performing on the input image data initial correction of an aberration due to said taking lens based on either an initial corrective value that is determined by the information about the taking lens that was obtained by said information acquisition means or a predetermined initial corrective value;
• a monitor for displaying an image that has been subjected to said initial correction;
• designating means by which a portion of said image that has been subjected to said initial correction is designated as a designated area on said monitor;
• and
• correcting means which, based on an image information about the designated area created by designation by said designating means, determines a corrective value for correcting said aberration and corrects the aberration in said taken image based on the corrective value.