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Topic: RAL (color space system)


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In the News (Mon 27 May 19)

  
  Heidelberg - Glossary - R
RAL colors are standard colors based on a series of color collections for industry which are published by the Deutsches Institut für Gütesicherung und Kennzeichnung, Sankt Augustin (originally "Reichsausschuss für Lieferbedingungen").
All RAL colors in the RAL Design System and the RAL 840-HR classical color collection are also defined digitally and can be used with all popular graphic arts programs running under Windows and Macintosh and can be used with more than 20 output variants i.e.
RGB is the usual additive color model for the primary colors red, green and blue and is used for self-illuminating output devices such as monitors, but also for electronic recording equipment such as scanners and video cameras.
www.heidelberg.com /www/pages/glossary.jsp?letter=R   (1162 words)

  
 Polipigment color pastes, gelcoat color matching and RAL, Pantone colors for industry
Colors are matched with spectrophotometer computer analysis and produced with computer aided production system, therefore the colors are not available in our stocks, made upon request.
The CIE ΔE*, is defined as an measure of color difference, namely the Euclidean distance of the straight line distance between two colors that are expressed by the Lab coordinate (see the color space at the left).
Because it is said that the CIE Lab color space would be a perceptually uniform color space then the Euclidean distance between two colors in this space would be a perceptually uniform measure for color difference.
www.poliya.com.tr /poliya_products_polipigment_color_gelcoat_ral.htm   (426 words)

  
 Ask a Color Scientist!
Photochromic colorants simply change color in the presence of UV and I would expect that the amount of color change could be quantitatively related to the amount of UV exposure.
The colorants imbedded in the beads are known as "photochromic colorants".
There are a variety of other color spaces used for this type of analysis and they all have their advantages and disadvantages.
www.cis.rit.edu /mcsl/faq   (13744 words)

  
 handprint : modern color models
The vertical fl to white dimension is the lightness or value of a color; the horizontal plane perpendicular to this dimension is the hue of a color; and the lateral distance or radius from the center outwards is the chroma (and approximately the saturation) of a color.
The Swedish Natural Color System (NCS), developed by Tryggve Johansson, Sven Hesselgren and Anders Hård at the Scandinavian Colour Institute in the 1960's and a color standard in several Scandanavian and EU countries, is a modern color model that exemplifies this approach.
Color appearance and the apparent differences between color samples are strongly affected by the power spectrum or spectral emission profile of the light source used to illuminate them.
www.handprint.com /HP/WCL/color7.html   (11227 words)

  
 Muster-Schmidt - Musterkarten GmbH RAL   (Site not responding. Last check: 2007-11-07)
The 1688 hues of the RAL DESIGN System are subject to the same mathematical relations that are used all over the world to label colours and that are the crucial factor in all colour mixing systems.
The first color systems were visually-organized color samples; it was only later that regularities were grasped by scientists and colorimetricans.
As a consequence, the cylindrical CIE color space is comprehensively represented by color samples located on the nodal points of the cylindrical coordinates.
www.muster-schmidt.de /html/e/design1.htm   (1914 words)

  
 Brown -- Facts, Info, and Encyclopedia article   (Site not responding. Last check: 2007-11-07)
Brown exists as a color perception only in the presence of a brighter color contrast.
Brown is the colour of the (A form of pool played with 15 red balls and six balls of other colors and a cue ball) snooker (Round object that is hit or thrown or kicked in games) ball which has a 4-point value.
Brown is the colour of many (The part of the earth's surface consisting of humus and disintegrated rock) soils.
www.absoluteastronomy.com /encyclopedia/B/Br/Brown.htm   (91 words)

  
 FAQ: Expert System Shells 1/1 [Monthly posting] - [1-6] Commercial Expert System Shells   (Site not responding. Last check: 2007-11-07)
RAL is a superset of C. rules can operate directly on the data types used by the C code in your application.
RAL "understands" C type declarations, function prototypes, #define constants, etc. C expressions, statements, macros, function calls, etc. can be embedded directly in the rules.
RAL has an open architecture that permits it to be used with any GUI builder, data base library, or other library that can be used with C. No bridges are required.
www.cs.cmu.edu /Groups/AI/html/faqs/ai/expert/part1/faq-doc-7.html   (5875 words)

  
 FAQ: Expert System Shells 1/1 [Monthly posting]
Examples from numerous specific systems, and discusses which problems are suitable for attack by rule-based systems.) Send email to gsmith@hpp.stanford.edu for information on getting the tech report, or see the later report: Bruce Buchanan and Reid Smith, "Fundamentals of Expert Systems", Annual Review of Computer Science 3, 23-58, 1988.
Systems like G2 use event-driven processing (restricting certain rules to execute only when specific WM elements change in a particular way) as a method of limiting forward chaining.
RT-Expert is a shareware expert system that lets C programmers integrate expert systems rules into their C or C++ applications.
www.faqs.org /faqs/ai-faq/expert/part1   (9354 words)

  
 THE MOTHER OF ALL HTML COLOR CHARTS RGB order page #007
Many color names are assigned to specific years of stamp issue, and the same name will be a different shade for another issue.
The capacity of the 256x256x256 RGB color system is 16777216 colors.
All colors shown are approximate, multiple shades can be found for the same "name", and no correction is applied for viewing angle, light source temperature, coated vs. uncoated etc. Gamma is 2.2.
tx4.us /mr/mr007.htm   (838 words)

  
 [1-6] Commercial Expert System Shells
Their web page is located at the URL http://www.lpa.co.uk Foundation Technologies sells expert system products and services for financial applications, such as pension management.
For more information about GURU and the other database engines, development tools, and services offered by Micro Data Base Systems, please write to Micro Data Base Systems, Inc., 1305 Cumberland Avenue, P.O. Box 2438, West Lafayette, IN 47906-0438, call 800-445-MDBS/6327 (317-463-7200), fax 317-463-1234, or send email to info@mdbs.com.
Cognition Technology Corporation, 1000 Massachusetts Ave, Cambridge, MA 02138, 617-492-0246, FAX 617-492-0247, Internet ctcma@aol.com RAL (Rule-extended Algorithmic Language) is a high-performance C-based expert systems tool.
www.faqs.org /faqs/ai-faq/expert/part1/section-7.html   (5910 words)

  
 Welcome to Dorn Color   (Site not responding. Last check: 2007-11-07)
About Us Welcome to Dorn Color, world leader in manufacturing of color chips, color cards, color charts, color swatches, fan decks, color systems, sampling, pop displays, color merchandising aids, and other customer sampling products.
Specializing in exotic and unusual effects, Dorn Color offers an entire spectrum of tone, pattern and texture.
Dorn Color is the U.S. sales representative for RAL Colors and Color Cards, the European color notation system.
www.dorncolor.com   (151 words)

  
 wikien.info: Main_Page   (Site not responding. Last check: 2007-11-07)
Raphael Aloysius Lafferty (November 7, 1914 - March 18, 2002) was a noted science fiction and fantasy writer.
Ralph Records was The Residents' original record label, the name coming from the somewhat colorful phrase "calling Ralph on the porcelain telephone." Ralph was founded in 1972, shortly after the group had moved to San Francisco, when the band realized that they were the only people who would be wil..
RAL is a color space system developed in 1927 by RAL Deutsches Institut für Gütesicherung und Kennzeichnung e.V. RAL started off with only 40 colours, but has since expanded to cover over 1,900.
www.hostingciamca.com /browse.php?title=R/RA/RAL   (8633 words)

  
 EasyRGB - Search RGB data of popular fandecks and color collections.
Search popular color collections for specific color codes or names.
Once selected the desired color, find the closest match in competitors' fandecks and color cards, create harmonies or get chromatic data.
For any practical purpose, once you get an idea about the color you are looking for, always refer to an original color card or fandeck.
www.easyrgb.com /reference.php   (123 words)

  
 Pyramid Chat 11/07/00: The Transhuman Space Team
Kromm says, "It would be anti-transhuman in philosophy to use different systems for meat, silicon, and data patterns.
Ral [to Rob]: In 2010 all that happens is someone notices some puffs of gas from the surface.
Kromm [to coyote6]: There will be plenty of 'racial' templates and cool mods, but with all that in the 'Characters' chapter, character templates would push it to the limit and then some.
www.sjgames.com /transhuman/chat/11.07.html   (8095 words)

  
 RAL   (Site not responding. Last check: 2007-11-07)
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RAL is a color space system developed in 1972 by RAL Deutsches Institut für Gütesicherung und Kennzeichnung e.V.
RAL started off with only 40 colours, but has since expanded to cover over 1900.
www.sciencedaily.com /encyclopedia/ral   (97 words)

  
 UMass Lowell Center for Atmospheric Research/ StationList
AFRL Air Force Research Laboratory, Ionospheric Hazards Branch, Space Vehicles Directorate, US Air Force
ISS-NCU Institute of Space Science, National Central University, Taiwan, China
SERC RAL Rutherford Appleton Laboratory, Science and Engineering Research Council, UK SUPARCO Space and Upper Atmosphere Research Commission, Pakistan
ulcar.uml.edu /framesn.htm   (293 words)

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