|Jim Worthey •
& Color Research • firstname.lastname@example.org
• 301-977-3551 • 11 Rye Court, Gaithersburg, MD 20878-1901, USA
Design Using Locus of Unit Monochromats"
James A. Worthey & Michael H.
Color Imaging Conference 14
2006 Nov. 9, 3:45 pm
There are materials required for the conference, and some additional
detailed examples. Here are links:
paper, "Camera Design Using
Locus of Unit Monochromats," 6 pages.
- The 2 slides for the 2-minute talk.
- The text of the 2-minute talk.
itself, Camera Design Using
Locus of Unit Monochromats . The algorithm in the poster is improved from the one in the
- 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.
- Proceedings paper from Color Imaging Conference 12 by Jim
Worthey: Color Matching with
Amplitude Not Left Out .
- 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- As yet unpublished manuscript evolved from the CIC 12 talk.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:
- Vectorial Color .
- Figures for "Vectorial Color" .
- 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:
- Proceedings paper: "How White
Light Works" .
- A long web page with links to detailed examples supplies the visuals of "How White Light Works"
. This link will take you to the same visuals but jump over
background material and right into the color rendering presentation.
- 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
Application 28(6):403-412, December 2003:
- Preprint of the text
for "Color rendering: asking the question"
- A separate pdf containing figures for "Color rendering: asking
the question" .
- An illustrated list
of 30 New Ideas for Color
- 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.
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
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.
- For ever more
material about lighting and color, see the home page: http://www.jimworthey.com .
2006 James A. Worthey, email: email@example.com
Page last modified, 2007 September 10, 18:48