def test_nan_luminance_ASTMD1535(self):
"""
Test :func:`colour.colorimetry.luminance.luminance_ASTMD1535`
definition nan support.
"""
luminance_ASTMD1535(np.array([-1.0, 0.0, 1.0, -np.inf, np.inf,
np.nan]))
def test_luminance_ASTMD1535(self):
"""
Tests :func:`colour.colorimetry.luminance.luminance_ASTMD1535`
definition.
"""
self.assertAlmostEqual(
luminance_ASTMD1535(4.08244375), 12.236342675366036, places=7)
self.assertAlmostEqual(
luminance_ASTMD1535(5.39132685), 22.893999867280378, places=7)
self.assertAlmostEqual(
luminance_ASTMD1535(2.97619312), 6.2902253509053132, places=7)
def test_domain_range_scale_luminance_ASTMD1535(self):
"""
Tests :func:`colour.colorimetry.luminance.luminance_ASTMD1535`
definition domain and range scale support.
"""
Y = luminance_ASTMD1535(4.08244375)
d_r = (('reference', 1, 1), (1, 0.1, 0.01), (100, 10, 1))
for scale, factor_a, factor_b in d_r:
with domain_range_scale(scale):
np.testing.assert_almost_equal(luminance_ASTMD1535(4.08244375 *
factor_a),
Y * factor_b,
decimal=7)
def test_n_dimensional_luminance_ASTMD1535(self):
"""
Test :func:`colour.colorimetry.luminance.luminance_ASTMD1535`
definition n-dimensional arrays support.
"""
V = 4.08244375
Y = luminance_ASTMD1535(V)
V = np.tile(V, 6)
Y = np.tile(Y, 6)
np.testing.assert_almost_equal(luminance_ASTMD1535(V), Y, decimal=7)
V = np.reshape(V, (2, 3))
Y = np.reshape(Y, (2, 3))
np.testing.assert_almost_equal(luminance_ASTMD1535(V), Y, decimal=7)
V = np.reshape(V, (2, 3, 1))
Y = np.reshape(Y, (2, 3, 1))
np.testing.assert_almost_equal(luminance_ASTMD1535(V), Y, decimal=7)