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