colour.Hunt_Specification¶

class colour.Hunt_Specification[source]¶

Defines 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 (numeric or array_like) – Correlate of Lightness \(J\).
C (numeric or array_like) – Correlate of chroma \(C_94\).
h (numeric or array_like) – Hue angle \(h_S\) in degrees.
s (numeric or array_like) – Correlate of saturation \(s\).
Q (numeric or array_like) – Correlate of brightness \(Q\).
M (numeric or array_like) – Correlate of colourfulness \(M_94\).
H (numeric or array_like) – Hue \(h\) quadrature \(H\).
HC (numeric or array_like) – Hue \(h\) composition \(H_C\).

Notes

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

References

[Fai13f], [Hun04]

Create new instance of Hunt_Specification(J, C, h, s, Q, M, H, HC)

__init__()¶: Initialize self. See help(type(self)) for accurate signature.

Methods

`count`	Return number of occurrences of value.
`index`	Return first index of value.

Attributes

`C`	Alias for field number 1
`H`	Alias for field number 6
`HC`	Alias for field number 7
`J`	Alias for field number 0
`M`	Alias for field number 5
`Q`	Alias for field number 4
`h`	Alias for field number 2
`s`	Alias for field number 3