IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING PROGRAM

摘要

An image processing apparatus (12) for detecting feature points in inputted images (10, 11) comprising an optical flow detection section (13). The optical flow detection section (13) serves as: a full feature point detection section for detecting as a full feature point a point whose pixel value changes significantly when in whatever direction the pixel is moved; and a semi feature point detection section for detecting as a semi feature point a point whose pixel value hardly changes when the pixel is moved in a certain direction of the image but the pixel value changes significantly when the pixel is moved in other directions. This enables extracting feature points evenly from all portions of the image and enhancing accuracy in alignment when images are synthesized.