def test_nan_eotf_DCDM(self):
"""
Test :func:`colour.models.rgb.transfer_functions.dcdm.eotf_DCDM`
definition nan support.
"""
eotf_DCDM(np.array([-1.0, 0.0, 1.0, -np.inf, np.inf, np.nan]))
def test_eotf_DCDM(self):
"""
Tests :func:`colour.models.rgb.transfer_functions.dcdm.eotf_DCDM`
definition.
"""
self.assertAlmostEqual(eotf_DCDM(0.0), 0.0, places=7)
self.assertAlmostEqual(eotf_DCDM(0.11281861), 0.18, places=7)
self.assertAlmostEqual(eotf_DCDM(0.21817973), 1.0, places=7)
np.testing.assert_allclose(
eotf_DCDM(462, in_int=True), 0.18, atol=0.00001, rtol=0.00001)
def test_domain_range_scale_eotf_DCDM(self):
"""
Tests :func:`colour.models.rgb.transfer_functions.dcdm.eotf_DCDM`
definition domain and range scale support.
"""
XYZ_p = 0.11281861
XYZ = eotf_DCDM(XYZ_p)
d_r = (('reference', 1), (1, 1), (100, 100))
for scale, factor in d_r:
with domain_range_scale(scale):
np.testing.assert_almost_equal(
eotf_DCDM(XYZ_p * factor), XYZ * factor, decimal=7)
def test_n_dimensional_eotf_DCDM(self):
"""
Test :func:`colour.models.rgb.transfer_functions.dcdm.eotf_DCDM`
definition n-dimensional arrays support.
"""
XYZ_p = 0.11281861
XYZ = eotf_DCDM(XYZ_p)
XYZ_p = np.tile(XYZ_p, 6)
XYZ = np.tile(XYZ, 6)
np.testing.assert_almost_equal(eotf_DCDM(XYZ_p), XYZ, decimal=7)
XYZ_p = np.reshape(XYZ_p, (2, 3))
XYZ = np.reshape(XYZ, (2, 3))
np.testing.assert_almost_equal(eotf_DCDM(XYZ_p), XYZ, decimal=7)
XYZ_p = np.reshape(XYZ_p, (2, 3, 1))
XYZ = np.reshape(XYZ, (2, 3, 1))
np.testing.assert_almost_equal(eotf_DCDM(XYZ_p), XYZ, decimal=7)
