colour.CAM_Specification_Nayatani95#
- class colour.CAM_Specification_Nayatani95(L_star_P: FloatingOrNDArray | None = <factory>, C: FloatingOrNDArray | None = <factory>, h: FloatingOrNDArray | None = <factory>, s: FloatingOrNDArray | None = <factory>, Q: FloatingOrNDArray | None = <factory>, M: FloatingOrNDArray | None = <factory>, H: FloatingOrNDArray | None = <factory>, HC: FloatingOrNDArray | None = <factory>, L_star_N: FloatingOrNDArray | None = <factory>)[source]#
Define 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 (FloatingOrNDArray | None) – Correlate of achromatic Lightness \(L_p^\star\).
C (FloatingOrNDArray | None) – Correlate of chroma \(C\).
h (FloatingOrNDArray | None) – Hue angle \(\theta\) in degrees.
s (FloatingOrNDArray | None) – Correlate of saturation \(S\).
Q (FloatingOrNDArray | None) – Correlate of brightness \(B_r\).
M (FloatingOrNDArray | None) – Correlate of colourfulness \(M\).
H (FloatingOrNDArray | None) – Hue \(h\) quadrature \(H\).
HC (FloatingOrNDArray | None) – Hue \(h\) composition \(H_C\).
L_star_N (FloatingOrNDArray | None) – Correlate of normalised achromatic Lightness \(L_n^\star\).
Notes
This specification is the one used in the current model implementation.
References
- __init__(L_star_P: FloatingOrNDArray | None = <factory>, C: FloatingOrNDArray | None = <factory>, h: FloatingOrNDArray | None = <factory>, s: FloatingOrNDArray | None = <factory>, Q: FloatingOrNDArray | None = <factory>, M: FloatingOrNDArray | None = <factory>, H: FloatingOrNDArray | None = <factory>, HC: FloatingOrNDArray | None = <factory>, L_star_N: FloatingOrNDArray | None = <factory>) None #
- Parameters:
L_star_P (FloatingOrNDArray | None) –
C (FloatingOrNDArray | None) –
h (FloatingOrNDArray | None) –
s (FloatingOrNDArray | None) –
Q (FloatingOrNDArray | None) –
M (FloatingOrNDArray | None) –
H (FloatingOrNDArray | None) –
HC (FloatingOrNDArray | None) –
L_star_N (FloatingOrNDArray | None) –
- Return type:
None
Methods
__init__
([L_star_P, 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.L_star_P
C
h
s
Q
M
H
HC
L_star_N