generating {HEAD ~ converted image information} by synthesizing {TAIL ~ the image information}, to which the predetermined process has been applied, and the read synthesis image information, 
by synthesizing
generating { HEAD ~ converted image information } by synthesizing { TAIL ~ the image information } , to which the predetermined process has been applied , and the read synthesis image information ,
OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH