colour.models.log_decoding_REDLogFilm

colour.models.log_decoding_REDLogFilm(y: FloatingOrArrayLike, black_offset: FloatingOrArrayLike = 10 ** 95 - 685 / 300) → FloatingOrNDArray[source]

Define the REDLogFilm log decoding curve / electro-optical transfer function.

Parameters

  • y (FloatingOrArrayLike) – Non-linear data \(y\).

  • black_offset (FloatingOrArrayLike) – Black offset.

Returns

Linear data \(x\).

Return type

numpy.floating or numpy.ndarray

Notes

Domain

Scale - Reference

Scale - 1

y

[0, 1]

[0, 1]

Range

Scale - Reference

Scale - 1

x

[0, 1]

[0, 1]

References

[SonyImageworks12]

Examples

>>> log_decoding_REDLogFilm(0.457319613085418)  
0.1799999...

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