The gamma decoding circuit 6 is matched to the encoding gamma of the image generator 4, the first gamma encoding circuit 7 is matched to the decoding gamma of the second projector 2 and {HEAD ~ the second gamma encoding circuit} 8 is matched to {TAIL ~ the decoding gamma} of the first projector 1 
The gamma decoding circuit 6 is matched to the encoding gamma of the image generator 4 , the first gamma encoding circuit 7 is matched to the decoding gamma of the second projector 2 and { HEAD ~ the second gamma encoding circuit } 8 is matched to { TAIL ~ the decoding gamma } of the first projector 1
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 OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH