colour.CAM_Specification_Hunt#

class colour.CAM_Specification_Hunt(J: ~typing.Optional[FloatingOrNDArray] = <factory>, C: ~typing.Optional[FloatingOrNDArray] = <factory>, h: ~typing.Optional[FloatingOrNDArray] = <factory>, s: ~typing.Optional[FloatingOrNDArray] = <factory>, Q: ~typing.Optional[FloatingOrNDArray] = <factory>, M: ~typing.Optional[FloatingOrNDArray] = <factory>, H: ~typing.Optional[FloatingOrNDArray] = <factory>, HC: ~typing.Optional[FloatingOrNDArray] = <factory>)[source]#

Define the Hunt colour appearance model specification.

This specification has field names consistent with the remaining colour appearance models in colour.appearance but diverge from Fairchild (2013) reference.

Parameters:

J (Optional[FloatingOrNDArray]) – Correlate of Lightness \(J\).
C (Optional[FloatingOrNDArray]) – Correlate of chroma \(C_94\).
h (Optional[FloatingOrNDArray]) – Hue angle \(h_S\) in degrees.
s (Optional[FloatingOrNDArray]) – Correlate of saturation \(s\).
Q (Optional[FloatingOrNDArray]) – Correlate of brightness \(Q\).
M (Optional[FloatingOrNDArray]) – Correlate of colourfulness \(M_94\).
H (Optional[FloatingOrNDArray]) – Hue \(h\) quadrature \(H\).
HC (Optional[FloatingOrNDArray]) – Hue \(h\) composition \(H_C\).

Notes

This specification is the one used in the current model implementation.

References

[Fai13b], [Hun04]

__init__(J: ~typing.Optional[FloatingOrNDArray] = <factory>, C: ~typing.Optional[FloatingOrNDArray] = <factory>, h: ~typing.Optional[FloatingOrNDArray] = <factory>, s: ~typing.Optional[FloatingOrNDArray] = <factory>, Q: ~typing.Optional[FloatingOrNDArray] = <factory>, M: ~typing.Optional[FloatingOrNDArray] = <factory>, H: ~typing.Optional[FloatingOrNDArray] = <factory>, HC: ~typing.Optional[FloatingOrNDArray] = <factory>) → None#

Parameters:

J (Optional[FloatingOrNDArray]) –
C (Optional[FloatingOrNDArray]) –
h (Optional[FloatingOrNDArray]) –
s (Optional[FloatingOrNDArray]) –
Q (Optional[FloatingOrNDArray]) –
M (Optional[FloatingOrNDArray]) –
H (Optional[FloatingOrNDArray]) –
HC (Optional[FloatingOrNDArray]) –

Return type:

None

Methods

`__init__`([J, C, h, s, Q, M, H, HC])
`arithmetical_operation`(a, operation[, in_place])	Perform given arithmetical operation with \(a\) operand on the `dataclass`-like class.

Attributes

`fields`	Getter property for the fields of the `dataclass`-like class.
`items`	Getter property for the `dataclass`-like class items, i.e. the field names and values.
`keys`	Getter property for the `dataclass`-like class keys, i.e. the field names.
`values`	Getter property for the `dataclass`-like class values, i.e. the field values.
`J`
`C`
`h`
`s`
`Q`
`M`
`H`
`HC`