colour.colorimetry.luminance_Fairchild2010

colour.colorimetry.luminance_Fairchild2010(L_hdr, epsilon=1.836)[source]

Computes luminance \(Y\) of given Lightness \(L_{hdr}\) using Fairchild and Wyble (2010) method according to Michealis-Menten kinetics.

Parameters

  • L_hdr (array_like) – Lightness \(L_{hdr}\).

  • epsilon (numeric or array_like, optional) – \(\epsilon\) exponent.

Returns

luminance \(Y\).

Return type

array_like

Warning

The output range of that definition is non standard!

Notes

Domain

Scale - Reference

Scale - 1

L_hdr

[0, 100]

[0, 1]

Range

Scale - Reference

Scale - 1

Y

[0, 1]

[0, 1]

References

[FW10]

Examples

>>> luminance_Fairchild2010(31.996390226262736, 1.836)
... 
0.1219722...