def test_nan_eotf_inverse_DICOMGSDF(self):
"""
Tests :func:`colour.models.rgb.transfer_functions.dicom_gsdf.\
eotf_inverse_DICOMGSDF` definition nan support.
"""
eotf_inverse_DICOMGSDF(
np.array([-1.0, 0.0, 1.0, -np.inf, np.inf, np.nan]))
def test_domain_range_scale_eotf_inverse_DICOMGSDF(self):
"""
Tests :func:`colour.models.rgb.transfer_functions.dicom_gsdf.\
eotf_inverse_DICOMGSDF` definition domain and range scale support.
"""
L = 130.0662
J = eotf_inverse_DICOMGSDF(L)
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_inverse_DICOMGSDF(L * factor), J * factor, decimal=7)
def test_eotf_inverse_DICOMGSDF(self):
"""
Tests :func:`colour.models.rgb.transfer_functions.dicom_gsdf.\
eotf_inverse_DICOMGSDF` definition.
"""
self.assertAlmostEqual(
eotf_inverse_DICOMGSDF(0.05), 0.001007281350787, places=7)
self.assertAlmostEqual(
eotf_inverse_DICOMGSDF(130.0662), 0.500486263438448, places=7)
self.assertAlmostEqual(
eotf_inverse_DICOMGSDF(4000), 1.000160314715578, places=7)
self.assertAlmostEqual(
eotf_inverse_DICOMGSDF(130.0662, out_int=True), 512, places=7)
def test_n_dimensional_eotf_inverse_DICOMGSDF(self):
"""
Tests :func:`colour.models.rgb.transfer_functions.dicom_gsdf.\
eotf_inverse_DICOMGSDF` definition n-dimensional arrays support.
"""
L = 130.0662
J = eotf_inverse_DICOMGSDF(L)
L = np.tile(L, 6)
J = np.tile(J, 6)
np.testing.assert_almost_equal(eotf_inverse_DICOMGSDF(L), J, decimal=7)
L = np.reshape(L, (2, 3))
J = np.reshape(J, (2, 3))
np.testing.assert_almost_equal(eotf_inverse_DICOMGSDF(L), J, decimal=7)
L = np.reshape(L, (2, 3, 1))
J = np.reshape(J, (2, 3, 1))
np.testing.assert_almost_equal(eotf_inverse_DICOMGSDF(L), J, decimal=7)