ČSN EN ISO/CIE 11664-4 (011720)

Kolorimetrie - Část 4: Kolorimetrický prostor CIE 1976 L*a*b* (Norma k přímému použití jako ČSN).



NORMA vydaná dňa 1.1.2020


Jazyk
Prevedenie
DostupnosťSKLADOM
Cena11.30 bez DPH
11.30

Informácie o norme:

Označenie normy: ČSN EN ISO/CIE 11664-4
Rozlišovací znak: 011720
Katalógové číslo: 508550
Dátum vydania normy: 1.1.2020
Kód tovaru: NS-979523
Počet strán: 24
Približná hmotnosť: 72 g (0.16 libier)
Krajina: Česká technická norma
Kategória: Technické normy ČSN

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Anotácia textu normy ČSN EN ISO/CIE 11664-4 (011720):

This document specifies a method of calculating the coordinates of the CIE 1976 L*a*b* colour space, including correlates of lightness, chroma and hue. It includes two methods for calculating Euclidean distances in this space to represent the perceived magnitude of colour differences. This document is applicable to tristimulus values calculated using colour-matching functions of the CIE 1931 standard colorimetric system or the CIE 1964 standard colorimetric system. This document can be used for the specification of colour stimuli perceived as belonging to a reflecting or transmitting object, where a three-dimensional space more uniform than tristimulus space is required. This document does not apply to colour stimuli perceived as belonging to an area that appears to be emitting light as a primary light source, or that appears to be specularly reflecting such light. This document is applicable to self-luminous displays, such as cathode ray tubes, if they are being used to simulate reflecting or transmitting objects and if the stimuli are appropriately normalized. Calculating the reverse transformation is shown in Annex A

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