colour.LLAB_Specification¶
-
class
colour.
LLAB_Specification
[source]¶ Defines the :math:`LLAB(l:c)` 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 \(L_L\).
- C (numeric or array_like) – Correlate of chroma \(Ch_L\).
- h (numeric or array_like) – Hue angle \(h_L\) in degrees.
- s (numeric or array_like) – Correlate of saturation \(s_L\).
- M (numeric or array_like) – Correlate of colourfulness \(C_L\).
- HC (numeric or array_like) – Hue \(h\) composition \(H^C\).
- a (numeric or array_like) – Opponent signal \(A_L\).
- b (numeric or array_like) – Opponent signal \(B_L\).
Notes
- This specification is the one used in the current model implementation.
References
Create new instance of LLAB_Specification(J, C, h, s, M, HC, a, b)
-
__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 HC
Alias for field number 5 J
Alias for field number 0 M
Alias for field number 4 a
Alias for field number 6 b
Alias for field number 7 h
Alias for field number 2 s
Alias for field number 3