Defines CIE illuminants computation related objects.
See also
Illuminants IPython Notebook colour.colorimetry.dataset.illuminants.d_illuminants_s_spds, colour.colorimetry.spectrum.SpectralPowerDistribution
Returns the relative spectral power distribution of given CIE Standard Illuminant D Series using given xy chromaticity coordinates.
References
| [1] | Wyszecki, G., & Stiles, W. S. (2000). CIE Method of Calculating D-Illuminants. In Color Science: Concepts and Methods, Quantitative Data and Formulae (pp. 145–146). Wiley. ISBN:978-0471399186 |
| [2] | Lindbloom, B. (2007). Spectral Power Distribution of a CIE D-Illuminant. Retrieved April 05, 2014, from http://www.brucelindbloom.com/Eqn_DIlluminant.html |
| Parameters: | xy (array_like) – xy chromaticity coordinates. |
|---|---|
| Returns: | CIE Standard Illuminant D Series relative spectral power distribution. |
| Return type: | SpectralPowerDistribution |
Examples
Colour 0.3>>> D_illuminant_relative_spd((0.34567, 0.35850))
<colour.colorimetry.spectrum.SpectralPowerDistribution object at 0x...>