1. An apparatus for processing an image, said apparatus comprising: motion vector detection means for detecting a motion vector by using an image that is made up of multiple pixels and acquired by an image sensor having time integration effects; motion-blurring-mitigated image generation means for generating a motion-blurring-mitigated image in which motion blurring of a moving object is mitigated by using the motion vector detected by the motion vector detection means on the assumption that a pixel value of pixel of the moving object in the image is a value obtained by integrating, in a time direction, a pixel value of each pixel in which no motion blurring that corresponds to the moving object occur as it is moved; and spatial resolution creation means for generating an image that has a higher spatial resolution than that of the image made up of the multiple pixels by using the motion vector detected by the motion vector detection means and the motion-blurring-mitigated image from the motion-blurring-mitigated image generation means.