colour.RGB_to_Prismatic#

Convert from RGB colourspace to Prismatic \(L\rho\gamma\beta\) colourspace array.

Parameters:: RGB (Annotated[_Buffer | _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | complex | bytes | str | _NestedSequence[complex | bytes | str], 1]) – RGB colourspace array.
Returns:: Prismatic \(L\rho\gamma\beta\) colourspace array.
Return type:: numpy.ndarray

Notes

Domain	Scale - Reference	Scale - 1
`RGB`	1	1

Range	Scale - Reference	Scale - 1
`Lrgb`	1	1

References

[SH15]

Examples

>>> RGB = np.array([0.25, 0.50, 0.75])
>>> RGB_to_Prismatic(RGB)
array([ 0.75...   ,  0.1666666...,  0.3333333...,  0.5...   ])

Adjusting saturation of the specified RGB colourspace array: >>> saturation = 0.5 >>> Lrgb = RGB_to_Prismatic(RGB) >>> Lrgb[…, 1:] = 1 / 3 + saturation * (Lrgb[…, 1:] - 1 / 3) >>> Prismatic_to_RGB(Lrgb) # doctest: +ELLIPSIS array([ 0.45…, 0.6…, 0.75…])

colour.RGB_to_Prismatic#

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