colour.Luv_to_XYZ

colour.Luv_to_XYZ(Luv, illuminant=array([ 0.3127, 0.329 ]))[source]

Converts from CIE L*u*v* colourspace to CIE XYZ tristimulus values.

Parameters:
  • Luv (array_like) – CIE L*u*v* colourspace array.
  • illuminant (array_like, optional) – Reference illuminant xy chromaticity coordinates or CIE xyY colourspace array.
Returns:

CIE XYZ tristimulus values.
Return type:

ndarray

Notes

Domain Scale - Reference Scale - 1
Luv

L : [0, 100]

u : [-100, 100]

v : [-100, 100]

L : [0, 1]

a : [-1, 1]

b : [-1, 1]
illuminant [0, 1] [0, 1]
Range Scale - Reference Scale - 1
XYZ [0, 1] [0, 1]

References

[CIET14804f], [Wik07c]

Examples

>>> Luv = np.array([41.52787529, 96.83626054, 17.75210149])
>>> Luv_to_XYZ(Luv)  # doctest: +ELLIPSIS
array([ 0.2065400...,  0.1219722...,  0.0513695...])