colour_hdri.exposure_index_values#
- colour_hdri.exposure_index_values(H_a: ArrayLike) NDArrayFloat [source]#
Compute the exposure index values \(I_{EI}\) from given focal plane exposure \(H_a\).
- Parameters:
H_a (ArrayLike) – Focal plane exposure \(H_a\).
- Returns:
Exposure index values \(I_{EI}\).
- Return type:
References
[ISO06]
Examples
>>> exposure_index_values(0.1628937086212269) 61.3897251...