colour.models.log_decoding_ERIMMRGB

colour.models.log_decoding_ERIMMRGB(X_p, bit_depth=8, in_int=False, E_min=0.001, E_clip=316.2)[source]

Defines the ERIMM RGB log decoding curve / electro-optical transfer function (EOTF / EOCF).

Parameters:
  • X_p (numeric or array_like) – Non-linear data \(X'_{ERIMM}\).
  • bit_depth (int, optional) – Bit depth used for conversion.
  • in_int (bool, optional) – Whether to treat the input value as integer code value or float equivalent of a code value at a given bit depth.
  • E_min (numeric, optional) – Minimum exposure limit.
  • E_clip (numeric, optional) – Maximum exposure limit.
Returns:

Linear data \(X_{ERIMM}\).

Return type:

numeric or ndarray

Notes

Domain * Scale - Reference Scale - 1
X_p [0, 1] [0, 1]
Range * Scale - Reference Scale - 1
X [0, 1] [0, 1]
  • * This definition has an input integer switch, thus the domain-range scale information is only given for the floating point mode.

References

[Spaulding2000b]

Examples

>>> log_decoding_ERIMMRGB(0.410052389492129) # doctest: +ELLIPSIS
0.1...
>>> log_decoding_ERIMMRGB(105, in_int=True) # doctest: +ELLIPSIS
0.1...