colour.CAM_Specification_Nayatani95¶
- class colour.CAM_Specification_Nayatani95(L_star_P, C, h, s, Q, M, H, HC, L_star_N)[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 CAM_Specification_Nayatani95(L_star_P, C, h, s, Q, M, H, HC, L_star_N)
- __init__()¶
Methods
__init__
()count
(value, /)Return number of occurrences of value.
index
(value[, start, stop])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