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 & Stiles, Color Science - Concepts and Methods Data and Formulae - Second Edition, Wiley Classics Library Edition, published 2000, ISBN-10: 0-471-39918-3, page 146. |
| [2] | http://www.brucelindbloom.com/Eqn_DIlluminant.html (Last accessed 5 April 2014) |
| 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...>