colour_hdri.tonemapping_operator_simple#

colour_hdri.tonemapping_operator_simple(RGB: ArrayLike) → NDArrayFloat[source]#

Perform given RGB array tonemapping using the simple method: \(\cfrac{RGB}{RGB + 1}\).

Parameters:

RGB (ArrayLike) – RGB array to perform tonemapping onto.

Returns:

Tonemapped RGB array.

Return type:

numpy.ndarray

References

[Wikipediaa]

Examples

>>> tonemapping_operator_simple(
...     np.array(
...         [
...             [
...                 [0.48046875, 0.35156256, 0.23632812],
...                 [1.39843753, 0.55468757, 0.39062594],
...             ],
...             [
...                 [4.40625388, 2.15625895, 1.34375372],
...                 [6.59375023, 3.43751395, 2.21875829],
...             ],
...         ]
...     )
... )  
array([[[ 0.3245382...,  0.2601156...,  0.1911532...],
        [ 0.5830618...,  0.3567839...,  0.2808993...]],

       [[ 0.8150290...,  0.6831692...,  0.5733340...],
        [ 0.8683127...,  0.7746486...,  0.6893211...]]])