means for adjusting a gain of at least one other of a plurality of {HEAD ~ color component signals} of {TAIL ~ said composite signal}, 
of
means for adjusting a gain of at least one other of a plurality of { HEAD ~ color component signals } of { TAIL ~ said composite signal } ,
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH