def test_n_dimensional_whiteness_Stensby1968(self):
"""
Tests :func:`colour.colorimetry.whiteness.whiteness_Stensby1968`
definition n_dimensional arrays support.
"""
Lab = np.array([100.00000000, -2.46875131, -16.72486654])
WI = 142.76834569
np.testing.assert_almost_equal(
whiteness_Stensby1968(Lab),
WI,
decimal=7)
Lab = np.tile(Lab, (6, 1))
WI = np.tile(WI, 6)
np.testing.assert_almost_equal(
whiteness_Stensby1968(Lab),
WI,
decimal=7)
Lab = np.reshape(Lab, (2, 3, 3))
WI = np.reshape(WI, (2, 3))
np.testing.assert_almost_equal(
whiteness_Stensby1968(Lab),
WI,
decimal=7)
def test_n_dimensional_whiteness_Stensby1968(self):
"""
Tests :func:`colour.colorimetry.whiteness.whiteness_Stensby1968`
definition n_dimensional arrays support.
"""
Lab = np.array([100.00000000, -2.46875131, -16.72486654])
WI = 142.76834569
np.testing.assert_almost_equal(
whiteness_Stensby1968(Lab),
WI,
decimal=7)
Lab = np.tile(Lab, (6, 1))
WI = np.tile(WI, 6)
np.testing.assert_almost_equal(
whiteness_Stensby1968(Lab),
WI,
decimal=7)
Lab = np.reshape(Lab, (2, 3, 3))
WI = np.reshape(WI, (2, 3))
np.testing.assert_almost_equal(
whiteness_Stensby1968(Lab),
WI,
decimal=7)
def test_whiteness_Stensby1968(self):
"""
Test :func:`colour.colorimetry.whiteness.whiteness_Stensby1968`
definition.
"""
self.assertAlmostEqual(
whiteness_Stensby1968(
np.array([100.00000000, -2.46875131, -16.72486654])
),
142.76834569,
places=7,
)
self.assertAlmostEqual(
whiteness_Stensby1968(
np.array([100.00000000, 14.40943727, -9.61394885])
),
172.07015836,
places=7,
)
self.assertAlmostEqual(
whiteness_Stensby1968(np.array([1, 1, 1])), 1.00000000, places=7
)
def test_nan_whiteness_Stensby1968(self):
"""
Tests :func:`colour.colorimetry.whiteness.whiteness_Stensby1968`
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:
Lab = np.array(case)
whiteness_Stensby1968(Lab)
def test_nan_whiteness_Stensby1968(self):
"""
Tests :func:`colour.colorimetry.whiteness.whiteness_Stensby1968`
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:
Lab = np.array(case)
whiteness_Stensby1968(Lab)
def test_domain_range_scale_whiteness_Stensby1968(self):
"""
Test :func:`colour.colorimetry.whiteness.whiteness_Stensby1968`
definition domain and range scale support.
"""
Lab = np.array([100.00000000, -2.46875131, -16.72486654])
WI = whiteness_Stensby1968(Lab)
d_r = (("reference", 1), ("1", 0.01), ("100", 1))
for scale, factor in d_r:
with domain_range_scale(scale):
np.testing.assert_almost_equal(
whiteness_Stensby1968(Lab * factor), WI * factor, decimal=7
)
def test_whiteness_Stensby1968(self):
"""
Tests :func:`colour.colorimetry.whiteness.whiteness_Stensby1968`
definition.
"""
self.assertAlmostEqual(
whiteness_Stensby1968(
np.array([100., -2.46875131, -16.72486654])),
142.76834569000002,
places=7)
self.assertAlmostEqual(
whiteness_Stensby1968(
np.array([100., 14.40943727, -9.61394885])),
172.07015836000002,
places=7)
self.assertAlmostEqual(
whiteness_Stensby1968(
np.array([1., 1., 1.])),
1.0,
places=7)
