When implementing {TAIL ~ the mapping} for negative film , the multiplicative and additive constants are determined from the reference, e.g. green, band according to {HEAD ~ the following equations}: ##EQU3## wherein Imax is the maximum of the input range 
When implementing { TAIL ~ the mapping } for negative film , the multiplicative and additive constants are determined from the reference , e.g. green , band according to { HEAD ~ the following equations } : # # EQU3 # # wherein Imax is the maximum of the input range
OTH OTH 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 HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH