The gamuts of input and output colour imaging media

The colour gamuts of colour imaging media are important parameters in the reproduction of colour images between them and their assumed magnitudes directly influence the degree to which colours are modified. In spite of this, the determination of gamut boundaries is often done in a way that ignores some basic implications that follow from the definition of colour gamuts. This is partly due to the fact that some of these implications are not understood and partly due to the fact that if they are understood their magnitude is underestimated. Hence, the approach that is taken in this paper is to first discuss the theoretical implications of what colour gamuts are and subsequently to illustrate them by experimental means.