colour.Nayatani95_Specification¶
-
class
colour.
Nayatani95_Specification
[source]¶ Defines the Nayatani (1995) 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: - L_star_P (numeric or array_like) – Correlate of achromatic Lightness \(L_p^\star\).
- C (numeric or array_like) – Correlate of chroma \(C\).
- h (numeric or array_like) – Hue angle \(\theta\) in degrees.
- s (numeric or array_like) – Correlate of saturation \(S\).
- Q (numeric or array_like) – Correlate of brightness \(B_r\).
- M (numeric or array_like) – Correlate of colourfulness \(M\).
- H (numeric or array_like) – Hue \(h\) quadrature \(H\).
- HC (numeric or array_like) – Hue \(h\) composition \(H_C\).
- L_star_N (numeric or array_like) – Correlate of normalised achromatic Lightness \(L_n^\star\).
Notes
- This specification is the one used in the current model implementation.
References
Create new instance of Nayatani95_Specification(L_star_P, C, h, s, Q, M, H, HC, L_star_N)
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__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 L_star_N
Alias for field number 8 L_star_P
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