def test_n_dimensional_UVW_to_XYZ(self):
"""
Tests :func:`colour.models.cie_uvw.UVW_to_XYZ` definition n-dimensional
support.
"""
UVW = np.array([94.55035725, 11.55536523, 40.54757405])
illuminant = np.array([0.31270, 0.32900])
XYZ = UVW_to_XYZ(UVW, illuminant)
XYZ = np.tile(XYZ, (6, 1))
UVW = np.tile(UVW, (6, 1))
np.testing.assert_almost_equal(UVW_to_XYZ(UVW, illuminant),
XYZ,
decimal=7)
illuminant = np.tile(illuminant, (6, 1))
np.testing.assert_almost_equal(UVW_to_XYZ(UVW, illuminant),
XYZ,
decimal=7)
XYZ = np.reshape(XYZ, (2, 3, 3))
illuminant = np.reshape(illuminant, (2, 3, 2))
UVW = np.reshape(UVW, (2, 3, 3))
np.testing.assert_almost_equal(UVW_to_XYZ(UVW, illuminant),
XYZ,
decimal=7)
def test_domain_range_scale_UVW_to_XYZ(self):
"""
Tests :func:`colour.models.cie_uvw.UVW_to_XYZ` definition domain and
range scale support.
"""
UVW = np.array([94.55035725, 11.55536523, 40.54757405])
illuminant = np.array([0.31270, 0.32900])
XYZ = UVW_to_XYZ(UVW, illuminant)
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(UVW_to_XYZ(
UVW * factor, illuminant),
XYZ * factor,
decimal=7)
def test_nan_UVW_to_XYZ(self):
"""
Tests :func:`colour.models.cie_uvw.UVW_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:
UVW = np.array(case)
illuminant = np.array(case[0:2])
UVW_to_XYZ(UVW, illuminant)
def test_UVW_to_XYZ(self):
"""
Tests :func:`colour.models.cie_uvw.UVW_to_XYZ` definition.
"""
np.testing.assert_almost_equal(
UVW_to_XYZ(np.array([94.55035725, 11.55536523, 40.54757405])),
np.array([0.20654008, 0.12197225, 0.05136952]) * 100,
decimal=7)
np.testing.assert_almost_equal(
UVW_to_XYZ(np.array([-36.92762376, 28.90425105, 54.14071478])),
np.array([0.14222010, 0.23042768, 0.10495772]) * 100,
decimal=7)
np.testing.assert_almost_equal(
UVW_to_XYZ(np.array([-10.60111550, -41.94580000, 28.82134002])),
np.array([0.07818780, 0.06157201, 0.28099326]) * 100,
decimal=7)
np.testing.assert_almost_equal(
UVW_to_XYZ(
np.array([63.90676310, -8.11466183, 40.54757405]),
np.array([0.44757, 0.40745])),
np.array([0.20654008, 0.12197225, 0.05136952]) * 100,
decimal=7)
np.testing.assert_almost_equal(
UVW_to_XYZ(
np.array([88.56798946, 4.61154385, 40.54757405]),
np.array([0.34570, 0.35850])),
np.array([0.20654008, 0.12197225, 0.05136952]) * 100,
decimal=7)
np.testing.assert_almost_equal(
UVW_to_XYZ(
np.array([88.56798946, 4.61154385, 40.54757405]),
np.array([0.34570, 0.35850, 1.00000])),
np.array([0.20654008, 0.12197225, 0.05136952]) * 100,
decimal=7)