A Survey of
Color for Computer Graphics and an overview of the Technical Program
By Hal Newnan
12 August 2001
This course is
part of the Technical Program, which includes Courses, Papers, Panels,
and Sketches and Sketches and Applications. What the parts of the
Technical Program have in common is that they gather top experts
to inform us of the state of the art on the topics they cover
AND, they tend to be highly technical as they are displaying the
greatest and/or latest content.
are presenting what they need to present, and those needing to take
more time studying the material can purchase the related print and/or
CD versions at ACM SIGGRAPHs Store.
My background with color is as a student of traditional and computer
graphic arts, and I find this whole discussion excellent. During
this course Ms. Stone actually went in to some depth on many aspects
of color use and matching. She also discoursed on how that relates
to the various sorts of hardware used in the creation cycle from
Image Capture to Model, to Render, to Image, to Image Reproduction,
to View, and finally Design. Her schedule gives one half hour for
each of four parts to the talk: Color Vision and Appearance, Color
Reproduction and Management, Color in Rendered Graphics, and Color
Selection and Design. Her paper for this course is available from
ACM SIGGRAPHs publishing office (refer to s2001 Course 4).
The paper is well referenced and has good illustrations.
Among her book references are:
Bob Hunt, The Reproduction of Color
Understanding Digital Color by Phil Green
She covers everything you might expect to be covered including additive
and subtractive models; also RGB, CMYK, and RYB color models; and
also the perceptually uniform spaces: Munsell, Ostwald, Cielab and
Cieluv.For more on this topic, also see:
Digital Color Management
By Giorgianni & Madden
The Color of Nature
(An Exploratorium Book)
by Pat Murphy, Paul Doherty (Contributor), William Neill (Photographer)
(Thin films make interference patterns soap bubbles and butterfly
wings. Scattered fine particles scatter particular wavelengths as
with smoke, sky, and eyes (there are blue eyes protein particles
and then the bigger particles of green eyes).
Color in Computer Generated Objects By Roy Hall
Or, Andrew Glassners book.
Mapping, see Bartleson & Breneman and Tumblin & Rushmeier.
Regarding Design & Selection she refers to a visual designer's
view, which involves color harmony, palettes, and visual function
of the color. But she points out that she is an engineer not a designer.
As a designer you think about the impact the design or art will
have on the viewer.
Chroma and Value. The Primaries for RGB have the complementaries
Y P G. But for traditional art (Color wheel) RYB has Secondaries
of Green, Purple, and Orange. Maureens discussion of this
is almost outside the range of color in COMPUTER graphics, but this
exemplifies the full coverage she has given to her topic.
She goes into
the definition of a Complementary color, also split complements,
as being the Color Opposite on the color wheel. Ask the question
"Why isnt more of our theory of color mixing based in
the CMYK model?" Well, the RYB (traditional) paint mixtures
came first. There is a huge body of work available relating to traditional
uses of value and color that can readily be applied to computer
graphic color spaces.
Regarding "Making color effective" she suggests:
Avoid clutter emphasize legibility.
Accommodate atypical color vision
Compensate for color-deficient devices (one of the most common is
a red receptor isolated red light hanging in space) especially with
Course Paper! Visit her website Stone
Principle of Color Design, and Wucius Wongs books
Important aspects for designers to consider include: Hue, Color
Using Color Effectively,
by Lindsay MacDonald CG&A July 1999 (in Computer Graphics)
About Color Namers,
reference keywords "Perceptual" "linguistic"
and Berlin & Kay, also Johan Lammens, SUNY 1994; and Color,
Universal Language and Dictionary, Kenneth L. Kelly and Deanne B.
Judd; Berk, Brownston & Kaufman.
||As a full conference attendee,
you get 3 books and 4 CD packages.
proceedings is the most valuable. It costs $45 to buy new.
other books are 1) Conference Abstracts and Applications,
Electronic Art and Animation Catalog. The first covers eTech
and the Sketches and Application sessions. The second covers
the Art Gallery and the animations in the ET and Animation
the three books above also comes on a CD. In addition, there
is a double CD set of all of the course notes.
lot of information! To buy it all would cost $470. That's
close to the early bird members full conference price.