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