colour.colorimetry.RGB_2_degree_cmfs_to_XYZ_2_degree_cmfs¶
- colour.colorimetry.RGB_2_degree_cmfs_to_XYZ_2_degree_cmfs(wavelength: FloatingOrArrayLike) numpy.ndarray [source]¶
Convert Wright & Guild 1931 2 Degree RGB CMFs colour matching functions into the CIE 1931 2 Degree Standard Observer colour matching functions.
- Parameters
wavelength (FloatingOrArrayLike) – Wavelength \(\lambda\) in nm.
- Returns
CIE 1931 2 Degree Standard Observer spectral tristimulus values.
- Return type
Notes
Data for the CIE 1931 2 Degree Standard Observer already exists, this definition is intended for educational purpose.
References
[WS00i]
Examples
>>> from colour.utilities import numpy_print_options >>> with numpy_print_options(suppress=True): ... RGB_2_degree_cmfs_to_XYZ_2_degree_cmfs(700) array([ 0.0113577..., 0.004102 , 0. ])