The computer readable storage medium 26 wherein said data structure represents a gamut descriptor having {HEAD ~ inputs} related to the lightness and hue of colors and outputs related to the maximum Chroma of {TAIL ~ said second gamut} for the input values 
The computer readable storage medium 26 wherein said data structure represents a gamut descriptor having { HEAD ~ inputs } related to the lightness and hue of colors and outputs related to the maximum Chroma of { TAIL ~ said second gamut } for the input values
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH