colour_hdri.tonemapping_operator_filmic

colour_hdri.tonemapping_operator_filmic(RGB, shoulder_strength=0.22, linear_strength=0.3, linear_angle=0.1, toe_strength=0.2, toe_numerator=0.01, toe_denominator=0.3, exposure_bias=2, linear_whitepoint=11.2)[source]

Performs given RGB array tonemapping using Habble (2010) method.

Parameters

  • RGB (array_like) – RGB array to perform tonemapping onto.

  • shoulder_strength (numeric, optional) – Shoulder strength.

  • linear_strength (numeric, optional) – Linear strength.

  • linear_angle (numeric, optional) – Linear angle.

  • toe_strength (numeric, optional) – Toe strength.

  • toe_numerator (numeric, optional) – Toe numerator.

  • toe_denominator (numeric, optional) – Toe denominator.

  • exposure_bias (numeric, optional) – Exposure bias.

  • linear_whitepoint (numeric, optional) – Linear whitepoint.

Returns

Tonemapped RGB array.

Return type

ndarray

References

[Hab10a], [Hab10b]

Examples

>>> tonemapping_operator_filmic(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([[[ 0.4507954...,  0.3619673...,  0.2617269...],
        [ 0.7567191...,  0.4933310...,  0.3911730...]],

       [[ 0.9725554...,  0.8557374...,  0.7465713...],
        [ 1.0158782...,  0.9382937...,  0.8615161...]]])