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Standard
ISO/CIE 11664-5
Second edition
Colorimetry —
2024-06
Part 5:
CIE 1976 L*u*v* colour space and u',
v' uniform chromaticity scale diagram
Colorimétrie —
Partie 5: Espace chromatique L*u*v* et diagramme de
chromaticité uniforme u’, v’ CIE 1976
Reference number
ISO/CIE 11664-5:2024(en) © ISO/CIE 2024
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ISO/CIE 11664-5:2024(en)
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© ISO/CIE 2024
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Published in Switzerland
© ISO/CIE 2024 – All rights reserved
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ISO/CIE 11664-5:2024(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms, definitions, symbols and abbreviated terms . 1
3.1 Terms and definitions .1
3.2 Symbols and abbreviated terms .2
4 Calculation method . 2
4.1 Uniform chromaticity scale diagram (UCS diagram) .2
4.2 Uniform colour space .3
4.3 Correlates of lightness, saturation, chroma and hue .4
4.4 Colour differences .5
Annex A (informative) Reverse transformation . 7
Bibliography . 8
© ISO/CIE 2024 – All rights reserved
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ISO/CIE 11664-5:2024(en)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out through
ISO technical committees. Each member body interested in a subject for which a technical committee
has been established has the right to be represented on that committee. International organizations,
governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely
with the International Electrot
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