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