colour.contrast_sensitivity_function#

colour.contrast_sensitivity_function(method: Union[Literal['Barten 1999'], str] = 'Barten 1999', **kwargs) FloatingOrNDArray[source]#

Return the contrast sensitivity \(S\) of the human eye according to the contrast sensitivity function (CSF) described by given method.

Parameters
Returns

Contrast sensitivity \(S\).

Return type

numpy.floating or numpy.ndarray

References

[Bar99], [Bar03], [CKMW04], [InternationalTUnion15c],

Examples

>>> contrast_sensitivity_function(u=4)  
360.8691122...
>>> contrast_sensitivity_function('Barten 1999', u=4)  
360.8691122...