colour.munsell_value¶
-
colour.
munsell_value
(Y, method='ASTM D1535-08')[source]¶ Returns the Munsell value \(V\) of given luminance \(Y\) using given method.
Parameters: - Y (numeric or array_like) – luminance \(Y\).
- method (unicode, optional) – {‘ASTM D1535-08’, ‘Priest 1920’, ‘Munsell 1933’, ‘Moon 1943’, ‘Saunderson 1944’, ‘Ladd 1955’, ‘McCamy 1987’}, Computation method.
Returns: Munsell value \(V\).
Return type: numeric or ndarray
Notes
Domain Scale - Reference Scale - 1 Y
[0, 100] [0, 1] Range Scale - Reference Scale - 1 V
[0, 10] [0, 1] References
[ASTMInternational89], [Wik07d]
Examples
>>> munsell_value(12.23634268) # doctest: +ELLIPSIS 4.0824437... >>> munsell_value(12.23634268, method='Priest 1920') # doctest: +ELLIPSIS 3.4980484... >>> munsell_value(12.23634268, method='Munsell 1933') # doctest: +ELLIPSIS 4.1627702... >>> munsell_value(12.23634268, method='Moon 1943') # doctest: +ELLIPSIS 4.0688120... >>> munsell_value(12.23634268, method='Saunderson 1944') ... # doctest: +ELLIPSIS 4.0444736... >>> munsell_value(12.23634268, method='Ladd 1955') # doctest: +ELLIPSIS 4.0511633... >>> munsell_value(12.23634268, method='McCamy 1987') # doctest: +ELLIPSIS array(4.0814348...)