colour_hdri.exposure_value

colour_hdri.exposure_value(f_number, exposure_time, iso)

Computes the exposure value from given image FNumber, Exposure Time and ISO values.

Parameters:

• f_number (array_like) – Image FNumber.
• exposure_time (array_like) – Image Exposure Time.
• iso (array_like) – Image ISO.

Returns:

Image exposure value.

Return type:

ndarray

Examples

>>> exposure_value(8, 1, 100)
6.0