This CIE Standard specifies the method of calculating the coordinates of the CIE 1976 Labcolour 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. The Standard is applicable to tristimulus values calculated using colour-matching functions of the CIE 1931 standard colorimetric system or the CIE 1964 standard colorimetric system. The Standard may 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. It 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 Standard does apply to self-luminous displays, like cathode ray tubes, if they are being used to simulate reflecting or transmitting objects and if the stimuli are appropriately normalized.
DIN EN ISO 11664-4:2011由德国标准化学会 DE-DIN 发布于 2011-07。
DIN EN ISO 11664-4:2011 在中国标准分类中归属于: A26 颜色,在国际标准分类中归属于: 17.180.20 颜色和光的测量。
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