colour.chromatically_adapted_primaries¶
-
colour.
chromatically_adapted_primaries
(primaries, whitepoint_t, whitepoint_r, chromatic_adaptation_transform='CAT02')[source]¶ Chromatically adapts given primaries \(xy\) chromaticity coordinates from test
whitepoint_t
to referencewhitepoint_r
.Parameters: - primaries (array_like, (3, 2)) – Primaries \(xy\) chromaticity coordinates.
- whitepoint_t (array_like) – Test illuminant / whitepoint \(xy\) chromaticity coordinates.
- whitepoint_r (array_like) – Reference illuminant / whitepoint \(xy\) chromaticity coordinates.
- chromatic_adaptation_transform (unicode, optional) – {‘CAT02’, ‘XYZ Scaling’, ‘Von Kries’, ‘Bradford’, ‘Sharp’, ‘Fairchild’, ‘CMCCAT97’, ‘CMCCAT2000’, ‘CAT02_BRILL_CAT’, ‘Bianco’, ‘Bianco PC’}, Chromatic adaptation transform.
Returns: Chromatically adapted primaries \(xy\) chromaticity coordinates.
Return type: ndarray
Examples
>>> p = np.array([0.64, 0.33, 0.30, 0.60, 0.15, 0.06]) >>> w_t = np.array([0.31270, 0.32900]) >>> w_r = np.array([0.34570, 0.35850]) >>> chromatic_adaptation_transform = 'Bradford' >>> chromatically_adapted_primaries(p, w_t, w_r, ... chromatic_adaptation_transform) ... # doctest: +ELLIPSIS array([[ 0.6484414..., 0.3308533...], [ 0.3211951..., 0.5978443...], [ 0.1558932..., 0.0660492...]])