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