colour.models.log_encoding_ERIMMRGB

colour.models.log_encoding_ERIMMRGB(X, I_max=255, E_min=0.001, E_clip=316.2)

Defines the ERIMM RGB log encoding curve / opto-electronic transfer function (OETF / OECF).

Parameters:

• X (numeric or array_like) – Linear data \(X_{ERIMM}\).
• I_max (numeric, optional) – Maximum code value: 255, 4095 and 650535 for respectively 8-bit, 12-bit and 16-bit per channel.
• E_min (numeric, optional) – Minimum exposure limit.
• E_clip (numeric, optional) – Maximum exposure limit.

Returns:

Non-linear data \(X'_{ERIMM}\).

Return type:

numeric or ndarray

References

• [SWG00]

Examples

>>> log_encoding_ERIMMRGB(0.18)  
104.5633593...