The Derivation of XYZ Tristimsulus Spaces: A Comparison of Two Alternative Methods

摘要

We illustrate how an XYZ representation of tri- stimulus space can be developed from a given set of color- matching functions. The results of two alternative principles are presented. The first is predominantly based on geomet- rical considerations and criteria referring to the chroma- ticity diagram. This method unambiguously defines the XYZ representation by requiring that the spectrum locus in The two-dimensional chromaticity diagram deviate as little As possible from that of a chosen reference diagram-the Judd-Vos(x', y')diagram.