def test_nan_oetf_reverse_sRGB(self):
"""
Tests :func:`colour.models.rgb.transfer_functions.sRGB.\
oetf_reverse_sRGB` definition nan support.
"""
oetf_reverse_sRGB(np.array([-1.0, 0.0, 1.0, -np.inf, np.inf, np.nan]))
def test_nan_oetf_reverse_sRGB(self):
"""
Tests :func:`colour.models.rgb.transfer_functions.sRGB.\
oetf_reverse_sRGB` definition nan support.
"""
oetf_reverse_sRGB(np.array([-1.0, 0.0, 1.0, -np.inf, np.inf, np.nan]))
def test_oetf_reverse_sRGB(self):
"""
Tests :func:`colour.models.rgb.transfer_functions.sRGB.\
oetf_reverse_sRGB` definition.
"""
self.assertAlmostEqual(oetf_reverse_sRGB(0.0), 0.0, places=7)
self.assertAlmostEqual(
oetf_reverse_sRGB(0.461356129500442), 0.18, places=7)
self.assertAlmostEqual(oetf_reverse_sRGB(1.0), 1.0, places=7)
def test_oetf_reverse_sRGB(self):
"""
Tests :func:`colour.models.rgb.transfer_functions.sRGB.\
oetf_reverse_sRGB` definition.
"""
self.assertAlmostEqual(oetf_reverse_sRGB(0.0), 0.0, places=7)
self.assertAlmostEqual(
oetf_reverse_sRGB(0.461356129500442), 0.18, places=7)
self.assertAlmostEqual(oetf_reverse_sRGB(1.0), 1.0, places=7)
def test_domain_range_scale_oetf_reverse_sRGB(self):
"""
Tests :func:`colour.models.rgb.transfer_functions.sRGB.\
oetf_reverse_sRGB` definition domain and range scale support.
"""
V = 0.461356129500442
L = oetf_reverse_sRGB(V)
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_reverse_sRGB(V * factor), L * factor, decimal=7)
def test_domain_range_scale_oetf_reverse_sRGB(self):
"""
Tests :func:`colour.models.rgb.transfer_functions.sRGB.\
oetf_reverse_sRGB` definition domain and range scale support.
"""
V = 0.461356129500442
L = oetf_reverse_sRGB(V)
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_reverse_sRGB(V * factor),
L * factor,
decimal=7)
def test_n_dimensional_oetf_reverse_sRGB(self):
"""
Tests :func:`colour.models.rgb.transfer_functions.sRGB.\
oetf_reverse_sRGB` definition n-dimensional arrays support.
"""
V = 0.461356129500442
L = oetf_reverse_sRGB(V)
V = np.tile(V, 6)
L = np.tile(L, 6)
np.testing.assert_almost_equal(oetf_reverse_sRGB(V), L, decimal=7)
V = np.reshape(V, (2, 3))
L = np.reshape(L, (2, 3))
np.testing.assert_almost_equal(oetf_reverse_sRGB(V), L, decimal=7)
V = np.reshape(V, (2, 3, 1))
L = np.reshape(L, (2, 3, 1))
np.testing.assert_almost_equal(oetf_reverse_sRGB(V), L, decimal=7)
def test_n_dimensional_oetf_reverse_sRGB(self):
"""
Tests :func:`colour.models.rgb.transfer_functions.sRGB.\
oetf_reverse_sRGB` definition n-dimensional arrays support.
"""
V = 0.461356129500442
L = oetf_reverse_sRGB(V)
V = np.tile(V, 6)
L = np.tile(L, 6)
np.testing.assert_almost_equal(oetf_reverse_sRGB(V), L, decimal=7)
V = np.reshape(V, (2, 3))
L = np.reshape(L, (2, 3))
np.testing.assert_almost_equal(oetf_reverse_sRGB(V), L, decimal=7)
V = np.reshape(V, (2, 3, 1))
L = np.reshape(L, (2, 3, 1))
np.testing.assert_almost_equal(oetf_reverse_sRGB(V), L, decimal=7)