colour.models.log_decoding_Panalog

colour.models.log_decoding_Panalog(y, black_offset=0.04077184461038074)[source]

Defines the Panalog log decoding curve / electro-optical transfer function.

Parameters:
  • y (numeric or array_like) – Non-linear data \(y\).
  • black_offset (numeric or array_like) – Black offset.
Returns:

Linear data \(x\).

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

References

[SonyImageworks2012a]

Examples

>>> log_decoding_Panalog(0.374576791382298)  # doctest: +ELLIPSIS
0.1...