Image processing apparatus and its magnification chromatic aberration correction method , an imaging apparatus , the magnification chromatic aberration correction program, and recording medium .

摘要

PROBLEM TO BE SOLVED: To accurately correct a magnification color aberration even in a peripheral region of a photographed image.;SOLUTION: An image processor performs the correction processing of the magnification color aberration for image data obtained through an image forming optical system having an imaging lens and provided with chrominance signals of two or more colors. An edge extraction section 50 extracts the edge part as a region for the image data. An image correction amount calculation section 61 calculates the magnification color aberration amount as a region magnification color aberration amount in the respective regions for each color component corresponding to the chrominance signals for the image data. A lens correction amount calculation section 62 calculates the magnification color aberration amount as a lens magnification color aberration amount for the respective regions on the basis of a lens design value related to the lens provided in the image forming optical system. A final correction amount calculation section 63 uses the region magnification color aberration amount and the lens magnification color aberration amount of an adjacent region adjacent to an undefined region suited to a condition stipulated beforehand to correct the lens magnification color aberration amount related to the undefined region and determine the region magnification color aberration amount related to the undefined region.;COPYRIGHT: (C)2012,JPO&INPIT