colour.XYZ_to_CAM16SCD

colour.XYZ_to_CAM16SCD(XYZ: Domain1, *, coefficients: ArrayLike = Coefficients_UCS_Luo2006(K_L=1.24, c_1=0.007, c_2=0.0363), **kwargs: Any) → Range100

Convert from CIE XYZ tristimulus values to Li et al. (2017) CAM16-SCD colourspace \(J'a'b'\) array.

Parameters:

• XYZ (Domain1) – CIE XYZ tristimulus values.

• kwargs (Any) – {colour.XYZ_to_CAM16()}, See the documentation of the previously listed definition. The default viewing conditions are those of IEC 61966-2-1:1999, i.e., sRGB 64 Lux ambient illumination, 80 \(cd/m^2\), adapting field luminance about 20% of a white object in the scene.

• coefficients (ArrayLike)

Returns:

Li et al. (2017) CAM16-SCD colourspace \(J'a'b'\) array.

Return type:

numpy.ndarray

Warning

The XYZ_w parameter for colour.XYZ_to_CAM16() definition must be specified in the same domain-range scale as the XYZ parameter.

Notes

• SCD in CAM16-SCD stands for Small Colour Differences.

Domain	Scale - Reference	Scale - 1
XYZ	1	1

Range	Scale - Reference	Scale - 1
Jpapbp	100	1

References

[LLW+17]