def test_n_dimensional_cctf_encoding_ROMMRGB(self):
"""
Test :func:`colour.models.rgb.transfer_functions.rimm_romm_rgb.\
cctf_encoding_ROMMRGB` definition n-dimensional arrays support.
"""
X = 0.18
X_ROMM = cctf_encoding_ROMMRGB(X)
X = np.tile(X, 6)
X_ROMM = np.tile(X_ROMM, 6)
np.testing.assert_almost_equal(
cctf_encoding_ROMMRGB(X), X_ROMM, decimal=7
)
X = np.reshape(X, (2, 3))
X_ROMM = np.reshape(X_ROMM, (2, 3))
np.testing.assert_almost_equal(
cctf_encoding_ROMMRGB(X), X_ROMM, decimal=7
)
X = np.reshape(X, (2, 3, 1))
X_ROMM = np.reshape(X_ROMM, (2, 3, 1))
np.testing.assert_almost_equal(
cctf_encoding_ROMMRGB(X), X_ROMM, decimal=7
)
def test_nan_cctf_encoding_ROMMRGB(self):
"""
Tests :func:`colour.models.rgb.transfer_functions.rimm_romm_rgb.\
cctf_encoding_ROMMRGB` definition nan support.
"""
cctf_encoding_ROMMRGB(
np.array([-1.0, 0.0, 1.0, -np.inf, np.inf, np.nan]))
def test_domain_range_scale_cctf_encoding_ROMMRGB(self):
"""
Test :func:`colour.models.rgb.transfer_functions.rimm_romm_rgb.\
cctf_encoding_ROMMRGB` definition domain and range scale support.
"""
X = 0.18
X_p = cctf_encoding_ROMMRGB(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(
cctf_encoding_ROMMRGB(X * factor), X_p * factor, decimal=7
)
def test_cctf_encoding_ROMMRGB(self):
"""
Tests :func:`colour.models.rgb.transfer_functions.rimm_romm_rgb.\
cctf_encoding_ROMMRGB` definition.
"""
self.assertAlmostEqual(cctf_encoding_ROMMRGB(0.0), 0.0, places=7)
self.assertAlmostEqual(cctf_encoding_ROMMRGB(0.18),
0.385711424751138,
places=7)
self.assertAlmostEqual(cctf_encoding_ROMMRGB(1.0), 1.0, places=7)
self.assertEqual(cctf_encoding_ROMMRGB(0.18, out_int=True), 98)
self.assertEqual(
cctf_encoding_ROMMRGB(0.18, bit_depth=12, out_int=True), 1579)