def test_whiteness_ASTME313(self):
"""
Test :func:`colour.colorimetry.whiteness.whiteness_ASTME313`
definition.
"""
self.assertAlmostEqual(
whiteness_ASTME313(
np.array([95.00000000, 100.00000000, 105.00000000])
),
55.740000000000009,
places=7,
)
self.assertAlmostEqual(
whiteness_ASTME313(
np.array([105.00000000, 100.00000000, 95.00000000])
),
21.860000000000014,
places=7,
)
self.assertAlmostEqual(
whiteness_ASTME313(
np.array([100.00000000, 100.00000000, 100.00000000])
),
38.800000000000011,
places=7,
)
def test_nan_whiteness_ASTME313(self):
"""
Tests :func:`colour.colorimetry.whiteness.whiteness_ASTME313`
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:
XYZ = np.array(case)
whiteness_ASTME313(XYZ)
def test_domain_range_scale_whiteness_ASTME313(self):
"""
Tests :func:`colour.colorimetry.whiteness.whiteness_ASTME313`
definition domain and range scale support.
"""
XYZ = np.array([95.00000000, 100.00000000, 105.00000000])
WI = whiteness_ASTME313(XYZ)
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_ASTME313(XYZ * factor), WI * factor, decimal=7)
def test_n_dimensional_whiteness_ASTME313(self):
"""
Tests :func:`colour.colorimetry.whiteness.whiteness_ASTME313`
definition n_dimensional arrays support.
"""
XYZ = np.array([95.00000000, 100.00000000, 105.00000000])
WI = whiteness_ASTME313(XYZ)
XYZ = np.tile(XYZ, (6, 1))
WI = np.tile(WI, 6)
np.testing.assert_almost_equal(whiteness_ASTME313(XYZ), WI, decimal=7)
XYZ = np.reshape(XYZ, (2, 3, 3))
WI = np.reshape(WI, (2, 3))
np.testing.assert_almost_equal(whiteness_ASTME313(XYZ), WI, decimal=7)