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Standard Practice for Specifying Color by Using the Optical Society of America Uniform Color Scales System
Automaticky preložený názov:
Štandardná prax pre určenie farby pomocou optického Society of America Jednotné farebnej škály systému
NORMA vydaná dňa 1.5.2015
Označenie normy: ASTM E1360-05(2015)
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.5.2015
Kód tovaru: NS-587580
Počet strán: 15
Približná hmotnosť: 45 g (0.10 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
color, Optical Society of America, Optical Society of America Uniform Color Scales, OSA-UCS, Uniform Color Scales,, ICS Number Code 17.180.20 (Colours and measurement of light)
Significance and Use | ||||||||||
5.1 Notational systems that specify and identify colors have proved to be very useful. This practice describes how to assign an OSA-UCS notation to a color specimen. This notation gives its position within the color space determined by the Optical Society of America Committee on Uniform Color Scales to represent the closest possible approximation to a color space in which equal distances equate to equal visually perceived differences. The cuboctahedral sampling fills the color space with a more closely spaced set of samples than would a cubic lattice or samples placed on polar coordinates. |
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1. Scope | ||||||||||
1.1 This practice provides a means for specifying the colors of objects in terms of the Optical Society of America Uniform Color Scales. Both computational and visual methods are included. The practice is limited to opaque objects, such as painted surfaces, viewed in daylight by an observer having normal color vision. 1.2 This practice does not cover the preparation of specimens. If the preparation of specimens is required in conjunction with this practice, a mutually agreed upon procedure shall be established. |
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2. Referenced Documents | ||||||||||
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