colour.models.LMS_to_Yrg#

colour.models.LMS_to_Yrg(LMS: ArrayLike) → NDArrayFloat[source]#

Convert from LMS colourspace to Kirk (2019) Yrg colourspace.

Parameters:: LMS (ArrayLike) – LMS colourspace values.
Returns:: Kirk (2019) Yrg \(Yrg\) luminance, redness, and greenness.
Return type:: numpy.ndarray

Notes

Domain	Scale - Reference	Scale - 1
`LMS`	[0, 100]	[0, 1]

Range	Scale - Reference	Scale - 1
`Yrg`	`Y` : [0, 1] `r` : [0, 1] `g` : [0, 1]	`Y` : [0, 1] `r` : [0, 1] `g` : [0, 1]

Range

Scale - Reference

Scale - 1

Yrg

Y : [0, 1]

r : [0, 1]

g : [0, 1]

Y : [0, 1]

r : [0, 1]

g : [0, 1]

References

[Kir19]

Examples

>>> import numpy as np
>>> LMS = np.array([0.15639195, 0.06741689, 0.03281398])
>>> LMS_to_Yrg(LMS)  
array([ 0.1313780...,  0.4903764...,  0.3777739...])