NOISE REDUCTION APPARATUS, METHOD AND PROGRAM FOR THE SAME

In order to reduce the possibility of damaging a signal component of the original image during the noise reduction of an image created by pan-sharpen processing or the like based on a plurality of images of the same image object, which are taken simultaneously with different resolutions, a noise reduction apparatus according to the present invention includes a multiresolution decomposition means that performs multiresolution decomposition on a first image inputted to obtain components having a prescribed first resolution, the first image having a prescribed resolution, the prescribed first resolution being lower than the prescribed resolution of a second image inputted, the second image being captured simultaneously with the first image, the first image and the second image being images of a same object, a low resolution component compensation means that compensates at least one decomposition component created by the decomposition with use of the second image, and an image reconfiguration means that replaces the component decomposed with a decomposition component created by the compensation, reconfigures the first image, and outputs the first image thus reconfigured.