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BabelColor News!
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The
Dimensions of Color, a site developed by David Briggs. A well
illustrated site on light, color, and its perception. The content is a course in
applied color science optimized for artists but useful for all. The language is
clear, with just a few simple equations and lots of descriptions.
http://www.huevaluechroma.com
For artists interested in understanding the technical foundations of all
aspects of watercolor painting: papers, brushes, paints, color theory, painting
techniques, and more. The site's author, Bruce MacEvoy, also has another
site devoted to color theory, but this one more
technical
in nature.
http://www.handprint.com/HP/WCL/water.html
A site by a photographer, Norman Koren, for photographers who want to get the maximum from the medium and who are
eager
to learn. From film grain to inkjet inks, all aspects of traditional and digital
photography are discussed. See also the link in the
Technical sites section below for his great camera analysis program "Imatest".
http://www.normankoren.com
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Most likely the first virtual color museum. An extraordinary multi-lingual site on the perception, description and
characterization of color. Contains a description of almost all color systems
known since Pythagoras.
http://www.colorsystem.com/?lang=en
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Here are forum sites dedicated to photography where
you will also find help on color related subjects and equipment. Beside
being free, you will find there many knowledgeable participants and
moderators.
Digital Grin
http://www.dgrin.com
Digital Photography Review (dpreview)
http://www.dpreview.com/forums/
Luminous Landscape Forums
http://www.luminous-landscape.com/forum/
Open Photography Forums
http://www.openphotographyforums.com/index.php
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Here is a list of manufacturers specialized in light and color
measurement instruments, with an emphasis on instruments dedicated to the print
and paint industries.
- Barbieri electronic: Mid-range industrial
instruments: spectrophotometers in reflection/transmission, densitometers,
and customized products.
- basICColor: DISCUS: Professional Lab-Grade
Colorimeter for Soft Proofing.
- BYK Gardner: Mid-range industrial and laboratory
instruments: spectrophotometers, light booths, gloss meters, haze meters,
orange peel / DOI meters.
- Cooke (now called
PCO-TECH):
Industrial luminance, illuminance, chromaticity, CCT meters.
- Datacolor: Wide instrument range, from consumer to
laboratory: colorimeters, spectrophotometers, light booths.
- JETI: Mid-range instruments for industrial and
laboratory use: radiometer, spectrophotometer, spectrocolorimeter.
- Konica-Minolta: Wide instrument range, from
consumer to laboratory: colorimeters, spectrophotometers,
spectrodensitometers, gloss meters, light booths, radiometers, illuminance
meters, luminance meters, etc.
- Ocean Optics: Full line of miniature fiber-optics
based spectrometers for laboratory use.
- Photo Research: High-end instruments for
industrial and laboratory use: spectroradiometers, photometers, video
photometers.
- Techkon: Mid-range instruments for industrial use:
plate measurement device, spectrophotometers, spectrodensitometers.
- X-Rite/GretagMacbeth: Wide instrument range, from
consumer to laboratory: colorimeters, spectrophotometers,
spectrodensitometers, light booths.
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Numerical data for all RGB spaces available in BabelColor is directly
available trough its "Data" menu (click
here for the list of RGB spaces). The
information includes the coordinates of the primaries and the
illuminant,
gamma, as well as the XYZ to RGB and RGB to XYZ
matrices. A short description of each space is also included in the help manual.
The following sites contain additional information on the six spaces that were
designed by individuals (as opposed to international committees):
BestRGB and DonRGB4, two spaces dedicated for film based
photography. Defined by Don Hutcheson. Look in the "Free" section of his site.
http://www.hutchcolor.com/profiles.html
Beta RGB, a space defined by Bruce Lindbloom to maximize the coverage of
the visible spectrum (L*a*b* gamut efficiency) and, unlike ProPhoto, maximize
the amount of RGB combinations corresponding to visible colors (Encoding
Efficiency).
http://www.brucelindbloom.com/BetaRGB.html
Bruce RGB, created in Bruce Fraser in 1998, a compromise between
ColorMatch and Adobe (1998). Designed to maximize the gamut while providing good
edit precision in 8 bit per pixel images.
http://www.creativepro.com/story/feature/6541.html
eciRGB, developed by the European Color Initiative, a group of experts
dedicated to advancing media-neutral color data-processing in digital publishing
systems. Dedicated for printing presses.
http://www.eci.org/en/colourstandards/workingcolorspaces
Ekta Space PS5, a space designed by Joseph Holmes to match the gamut
of Ektachrome transparency film. Also works well with color negatives.
http://www.josephholmes.com/profiles.html
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The Imatest Web site. A commercial site with extensive background
information on target testing. Imatest offers a suite of programs
to test the sharpness and image quality of lenses, and evaluate the color
rendering and image noise of cameras, using inexpensive, widely available targets. It consists
of three modules, including one dedicated to owners of the
ColorChecker target.
http://www.imatest.com
Bruce Lindbloom's Web site, a very complete
and accurate
site on the mathematics of colorimetry, with numerous interactive applets,
equations, tables, etc. Very professional.
http://www.brucelindbloom.com
The Munsell Color Science Laboratory, one of the world's premier
academic laboratories dedicated to the science of color. Its "Resources" section
offers a significant amount of information on color theory as well as files of
the Munsell "renotation" data.
http://www.cis.rit.edu/mcsl
Marcel Patek Digital Photography Web site. This site presents the
technical aspects of digital photography, with a mix of well-presented theory
and software tips on many programs dedicated to color management (including
BabelColor CT&A and PatchTool !).
http://www.marcelpatek.com
Charles Poynton, a well known and often quoted color expert with its
famous color and gamma FAQs.
http://www.poynton.com
Color
vision, a very personal review of color theory by Bruce MacEvoy.
This site covers all aspects of color perception with illustrated examples. A
must read, but be ready to spend a lot of time since there is a lot of content.
http://www.handprint.com/LS/CVS/color.html
The
Dimensions of Color, a site developed by David Briggs. A well
illustrated site on light, color, and its perception. The content is a course in
applied color science optimized for artists but useful for all. The language is
clear, with just a few simple equations and lots of descriptions.
http://www.huevaluechroma.com
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Ron Bigelow has a nice web site dedicated to photography. His articles
are easy to read and informative. In particular, you will find a well
illustrated presentation on the use of
white balance adjustments and many articles related to RAW files.
http://ronbigelow.com
An educational article on
white balance for microscopy applications, from Nikon, where we see
that the microscopic world can have the same problems as the macroscopic world
in terms of color accuracy.
http://www.microscopyu.com
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