said decomposition image generation unit provides {TAIL ~ the reference points} at respective apexes of a frequency division image of the first frequency region and applies weighting to the frequency division image with each reference point as a reference to thereby generate {HEAD ~ decomposition images} corresponding in number to the reference points, and 
said decomposition image generation unit provides { TAIL ~ the reference points } at respective apexes of a frequency division image of the first frequency region and applies weighting to the frequency division image with each reference point as a reference to thereby generate { HEAD ~ decomposition images } corresponding in number to the reference points , and
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH