Virtual Colour Specification
In order to communicate colour, a requisite is the ability to specify colour appearance. Before this can be achieved, a systematic method of describing colour appearance is necessary. Several colour order systems exist, but their approaches are often quite different and their colour ranges limited. Rather than choose a single system for international standardisation, Neville Smith and Fred Billmeyer argue that it would be better to develop a wealth of user-specific systems that could be interconverted by a common intermediary notation