{HEAD ~ One or more gray scale transfer functions} corresponding to {TAIL ~ desired display media}, one or more sets of experimentally determined constants, and one or more sets of algorithms are stored in a computer memory 
corresponding to
{ HEAD ~ One or more gray scale transfer functions } corresponding to { TAIL ~ desired display media } , one or more sets of experimentally determined constants , and one or more sets of algorithms are stored in a computer memory
HEAD HEAD HEAD HEAD 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 OTH OTH OTH OTH OTH OTH