def test_nan_oetf_SMPTE240M(self):
"""
Tests :func:`colour.models.rgb.transfer_functions.smpte_240m.\
oetf_SMPTE240M` definition nan support.
"""
oetf_SMPTE240M(np.array([-1.0, 0.0, 1.0, -np.inf, np.inf, np.nan]))
def test_domain_range_scale_oetf_SMPTE240M(self):
"""
Tests :func:`colour.models.rgb.transfer_functions.smpte_240m.\
oetf_SMPTE240M` definition domain and range scale support.
"""
L_c = 0.18
V_c = oetf_SMPTE240M(L_c)
d_r = (('reference', 1), (1, 1), (100, 100))
for scale, factor in d_r:
with domain_range_scale(scale):
np.testing.assert_almost_equal(oetf_SMPTE240M(L_c * factor),
V_c * factor,
decimal=7)
def test_oetf_SMPTE240M(self):
"""
Tests :func:`colour.models.rgb.transfer_functions.smpte_240m.\
oetf_SMPTE240M` definition.
"""
self.assertAlmostEqual(oetf_SMPTE240M(0.0), 0.0, places=7)
self.assertAlmostEqual(oetf_SMPTE240M(0.02),
0.080000000000000,
places=7)
self.assertAlmostEqual(oetf_SMPTE240M(0.18),
0.402285796753870,
places=7)
self.assertAlmostEqual(oetf_SMPTE240M(1.0), 1.0, places=7)
def test_n_dimensional_oetf_SMPTE240M(self):
"""
Tests :func:`colour.models.rgb.transfer_functions.smpte_240m.\
oetf_SMPTE240M` definition n-dimensional arrays support.
"""
L_c = 0.18
V_c = oetf_SMPTE240M(L_c)
L_c = np.tile(L_c, 6)
V_c = np.tile(V_c, 6)
np.testing.assert_almost_equal(oetf_SMPTE240M(L_c), V_c, decimal=7)
L_c = np.reshape(L_c, (2, 3))
V_c = np.reshape(V_c, (2, 3))
np.testing.assert_almost_equal(oetf_SMPTE240M(L_c), V_c, decimal=7)
L_c = np.reshape(L_c, (2, 3, 1))
V_c = np.reshape(V_c, (2, 3, 1))
np.testing.assert_almost_equal(oetf_SMPTE240M(L_c), V_c, decimal=7)