13:39 Sep 28, 2014 |
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English language (monolingual) [PRO] Social Sciences - Chemistry; Chem Sci/Eng / PHOTOPROTECTIVE materials | |||||||
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SUMMARY OF ALL EXPLANATIONS PROVIDED | ||||
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4 +3 | There are four terms in your question! |
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Discussion entries: 2 | |
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cie (1976) l*a*b* tri-stimulus data astm designation of .... There are four terms in your question! Explanation: To start in the middle: L*A*B* "A Lab color space is a color-opponent space with dimension L for lightness and a and b for the color-opponent dimensions, based on nonlinearly compressed CIE XYZ color space coordinates." http://en.wikipedia.org/wiki/Lab_color_space CIE: http://en.wikipedia.org/wiki/CIE_1931_color_space ASTM: "ASTM International, formerly known as the American Society for Testing and Materials (ASTM)" Tri-stimulus: "tristimulus system, chromaticity: standard chromaticity diagram [Credit: Courtesy of Thomson Consumer Electronics/RCA]a system for visually matching a colour under standardized conditions against the three primary colours—red, green, and blue; the three results are expressed as X, Y, and Z, respectively, and are called tristimulus values." http://global.britannica.com/EBchecked/topic/605960/tristimu... -------------------------------------------------- Note added at 1 hr (2014-09-28 14:52:21 GMT) -------------------------------------------------- This was extremely easy to look up by a simple internet search. |
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