1. An image processing apparatus, characterized in that it comprises: restoration means for restoring, based on a color and sensitivity mosaic image wherein each of a plurality of pixels has one of a plurality of color components and one of a plurality of sensitivity characteristics with respect to the intensity of light and a plurality of ones of the pixels which have the same color component and the same sensitivity characteristic are arranged in a grating-like arrangement and besides a plurality of ones of the pixels which have the same color component irrespective of the sensitivity characteristic are arranged in a grating-like arrangement, a restoration image wherein the sensitivities of the pixels are uniformized and each of the pixels has all of the plurality of color components.