Supplementary material, web only: 5 "further examples" . The utility
of the method lies in its ability to reveal differences between sensor
designs. In these examples, 5 different sensor sets are examined, and
the results are given in detail, including a 3D picture of the Locus of
Unit Monochromats for each case.
Visual presentation for the CIC 12 paper. A long web page was
used, rather than slides. Animated graphics clarify old and new ideas,
and 3D graphics show the Locus of Unit monochromats and some uses of
Cohen's space. Visuals from CIC 12 .
As yet unpublished manuscript evolved from the CIC 12 talk. The
figures are in a separate pdf:
The CIC 12 talk showed the application of vectorial ideas to
color rendering. A white light comprises narrow bands of different
wavelengths. Based on human color-matching, each narrow band maps to a
tristimulus vector, and those vectors add to give the tristimulus
vector of the white light. In 2006 February, Jim Worthey gave a talk on
color rendering with detailed examples:
If you
are designing color copiers, notice that the newest paper (CIC
14) shows how to generate the orthonormal basis and locus of unit
monochromats for a set of electronic sensors. From there, the vectorial
approach to color rendering can be applied to see how the copier's
light source works with the sensors.
For more general background material, there is James A. Worthey, "Color
rendering: asking the question," Color Research and
Application28(6):403-412, December 2003:
For a new theorem
and a review of prime colors: Michael H. Brill and
James A. Worthey, "Color Matching Functions When One Primary Wavelength
is Changed," Color Research and
Application, in press.
(This
article was accepted for publication in 2006 May. There's a preprint!)
The proceedings
paper says "The
results above relate color mixing to the vector space of a camera’s
sensor
functions, expressed by the LUM. The sensors also affect a camera’s
signal-to-noise properties in a way that the LUM does not predict. In toying
with the idea of anomalous color vision, Fig. 10 was generated.
..." Toying with anomalous color vision did not lead to a published
article, but some ideas were recorded in an unpublished Samizdat which
you can read: Normal and
Anomalous Color Vision.
