colour.IgPgTg_to_XYZ

colour.IgPgTg_to_XYZ(IgPgTg: Annotated[_Buffer | _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | complex | bytes | str | _NestedSequence[complex | bytes | str], 1]) → Annotated[ndarray[tuple[Any, ...], dtype[float16 | float32 | float64]], 1]

Convert from \(I_GP_GT_G\) colourspace to CIE XYZ tristimulus values.

Parameters:

IgPgTg (Annotated[_Buffer | _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | complex | bytes | str | _NestedSequence[complex | bytes | str], 1]) – \(I_GP_GT_G\) colourspace array.

Returns:

CIE XYZ tristimulus values.

Return type:

numpy.ndarray

Notes

Domain	Scale - Reference	Scale - 1
IgPgTg	1	1

Range	Scale - Reference	Scale - 1
XYZ	1	1

• Output CIE XYZ tristimulus values are adapted to CIE Standard Illuminant D Series D65.

References

[HF20]

Examples

>>> IgPgTg = np.array([0.42421258, 0.18632491, 0.10689223])
>>> IgPgTg_to_XYZ(IgPgTg)
array([ 0.2065400...,  0.1219722...,  0.0513695...])