def JMh_CAM16_to_CAM16(JMh):
"""
Converts from *CAM6* :math:`JMh` correlates to *CAM6* specification.
Parameters
----------
JMh : array_like
*CAM6* :math:`JMh` correlates.
Returns
-------
CAM6_Specification
*CAM6* colour appearance model specification.
Examples
--------
>>> JMh = np.array([4.17312079e+01, 1.07436772e-01, 2.17067960e+02])
>>> JMh_CAM16_to_CAM16(JMh) # doctest: +ELLIPSIS
CAM16_Specification(J=41.7312079..., C=None, h=217.06796..., s=None, \
Q=None, M=0.1074367..., H=None, HC=None)
"""
J, M, h = tsplit(JMh)
return CAM16_Specification(J=J, M=M, h=h)
def test_nan_CAM16_to_XYZ(self):
"""
Tests :func:`colour.appearance.cam16.CAM16_to_XYZ` definition
nan support.
"""
cases = [-1.0, 0.0, 1.0, -np.inf, np.inf, np.nan]
cases = set(permutations(cases * 3, r=3))
for case in cases:
J = case[0]
C = case[0]
h = case[0]
XYZ_w = np.array(case)
L_A = case[0]
Y_b = case[0]
surround = CAM16_InductionFactors(case[0], case[0], case[0])
CAM16_to_XYZ(CAM16_Specification(J, C, h), XYZ_w, L_A, Y_b,
surround)
def test_raise_exception_CAM16_to_XYZ(self):
"""
Tests :func:`colour.appearance.cam16.CAM16_to_XYZ` definition raised
exception.
"""
try:
CAM16_to_XYZ(
CAM16_Specification(
41.731207905126638,
None,
217.06795976739301,
),
np.array([95.05, 100.00, 108.88]),
318.31,
20.0,
CAM16_VIEWING_CONDITIONS['Average'],
)
except ValueError:
pass