colour.models.cctf_decoding_ROMMRGB#

colour.models.cctf_decoding_ROMMRGB(X_p: ArrayLike, bit_depth: int = 8, in_int: bool = False) → NDArrayFloat[source]#

Define the ROMM RGB decoding colour component transfer function (Encoding CCTF).

Parameters:

  • X_p (ArrayLike) – Non-linear data \(X'_{ROMM}\).

  • bit_depth (int) – Bit-depth used for conversion.

  • in_int (bool) – Whether to treat the input value as int code value or float equivalent of a code value at a given bit-depth.

Returns:

Linear data \(X_{ROMM}\).

Return type:

numpy.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 int switch, thus the domain-range scale information is only given for the floating point mode.

References

[ANSI03], [SWG00]

Examples

>>> cctf_decoding_ROMMRGB(0.385711424751138)  
0.1...
>>> cctf_decoding_ROMMRGB(98, in_int=True)  
0.1...