def test_n_dimensional_log_encoding_Log3G10_v1(self):
"""
Tests :func:`colour.models.rgb.transfer_functions.red_log.\
log_encoding_Log3G10_v1` definition n-dimensional arrays support.
"""
x = 0.18
y = log_encoding_Log3G10_v1(x)
x = np.tile(x, 6)
y = np.tile(y, 6)
np.testing.assert_almost_equal(log_encoding_Log3G10_v1(x),
y,
decimal=7)
x = np.reshape(x, (2, 3))
y = np.reshape(y, (2, 3))
np.testing.assert_almost_equal(log_encoding_Log3G10_v1(x),
y,
decimal=7)
x = np.reshape(x, (2, 3, 1))
y = np.reshape(y, (2, 3, 1))
np.testing.assert_almost_equal(log_encoding_Log3G10_v1(x),
y,
decimal=7)
def test_nan_log_encoding_Log3G10_v1(self):
"""
Tests :func:`colour.models.rgb.transfer_functions.red_log.\
log_encoding_Log3G10_v1` definition nan support.
"""
log_encoding_Log3G10_v1(
np.array([-1.0, 0.0, 1.0, -np.inf, np.inf, np.nan]))
def test_log_encoding_Log3G10_v1(self):
"""
Tests :func:`colour.models.rgb.transfer_functions.red_log.\
log_encoding_Log3G10_v1` definition.
"""
self.assertAlmostEqual(log_encoding_Log3G10_v1(-1.0),
-0.496483569056003,
places=7)
self.assertAlmostEqual(log_encoding_Log3G10_v1(0.0), 0.0, places=7)
self.assertAlmostEqual(log_encoding_Log3G10_v1(0.18),
0.333333644207707,
places=7)
def test_domain_range_scale_log_encoding_Log3G10_v1(self):
"""
Tests :func:`colour.models.rgb.transfer_functions.red_log.\
log_encoding_Log3G10_v1` definition domain and range scale support.
"""
x = 0.18
y = log_encoding_Log3G10_v1(x)
d_r = (('reference', 1), (1, 1), (100, 100))
for scale, factor in d_r:
with domain_range_scale(scale):
np.testing.assert_almost_equal(log_encoding_Log3G10_v1(x *
factor),
y * factor,
decimal=7)