colour.models.log_encoding_NLog#
- colour.models.log_encoding_NLog(y: Annotated[_Buffer | _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | complex | bytes | str | _NestedSequence[complex | bytes | str], 1], bit_depth: int = 10, out_normalised_code_value: bool = True, in_reflection: bool = True, constants: Structure | None = None) Annotated[ndarray[tuple[Any, ...], dtype[float16 | float32 | float64]], 1][source]#
Apply the Nikon N-Log log encoding opto-electronic transfer function (OETF).
- Parameters:
y (Annotated[_Buffer | _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | complex | bytes | str | _NestedSequence[complex | bytes | str], 1]) – Linear light reflectance \(y\), where \(y = 0.18\) represents middle grey at Stop 0.
bit_depth (int) – Bit-depth used for conversion.
out_normalised_code_value (bool) – Whether to return the Nikon N-Log encoded data \(x\) as normalised code values.
in_reflection (bool) – Whether the input light level represents reflected light.
constants (Structure | None) – Nikon N-Log constants.
- Returns:
N-Log 10-bit equivalent code value \(x\).
- Return type:
Notes
Domain
Scale - Reference
Scale - 1
y1
1
Range
Scale - Reference
Scale - 1
x1
1
References
[Nikon18]
Examples
>>> log_encoding_NLog(0.18) 0.3636677...