The Role of Schwartz Measures in Human Tri-Color Vision
M. L. Sloan
The human tri-color vision process may be characterized as follows:
  1. A requirement of three scalar quantities to fully define a color (for
example, intensity, hue, and purity), with
  2. These scalar measures linear in the intensity of the incident light,
allowing in general any specific color to be duplicated by an additive mixture
of light from three standardized (basis) colors,
  3. The exception being that the spectral colors are unique, in that they
cannot be duplicated by any positive mixture of other colors.
  These characteristics strongly suggest that human color vision makes use of
Schwartz measures in processing color data. This hypothesis is subject to test.
In this brief paper, the results of this hypothesis are shown to be in good
agreement with measured data.