colour.models.log_encoding_Panalog

colour.models.log_encoding_Panalog(x, black_offset=0.04077184461038074)[source]

Defines the Panalog log encoding curve / opto-electronic transfer function.

Parameters:
  • x (numeric or array_like) – Linear data \(x\).
  • black_offset (numeric or array_like) – Black offset.
Returns:

Non-linear data \(y\).

Return type:

numeric or ndarray

Warning

These are estimations known to be close enough, the actual log encoding curves are not published.

Notes

Domain Scale - Reference Scale - 1
x [0, 1] [0, 1]
Range Scale - Reference Scale - 1
y [0, 1] [0, 1]

References

[SonyImageworks2012a]

Examples

>>> log_encoding_Panalog(0.18)  # doctest: +ELLIPSIS
0.3745767...