def test_n_dimensional_RGB_to_YcCbcCrc(self):
"""
Tests :func:`colour.models.rgb.ycbcr.RGB_to_YcCbcCrc` definition
n-dimensional arrays support.
"""
RGB = np.array([0.45620519, 0.03081071, 0.04091952])
YcCbcCrc = RGB_to_YcCbcCrc(RGB)
RGB = np.tile(RGB, 4)
RGB = np.reshape(RGB, (4, 3))
YcCbcCrc = np.tile(YcCbcCrc, 4)
YcCbcCrc = np.reshape(YcCbcCrc, (4, 3))
np.testing.assert_almost_equal(RGB_to_YcCbcCrc(RGB),
YcCbcCrc,
decimal=7)
RGB = np.tile(RGB, 4)
RGB = np.reshape(RGB, (4, 4, 3))
YcCbcCrc = np.tile(YcCbcCrc, 4)
YcCbcCrc = np.reshape(YcCbcCrc, (4, 4, 3))
np.testing.assert_almost_equal(RGB_to_YcCbcCrc(RGB),
YcCbcCrc,
decimal=7)
RGB = np.tile(RGB, 4)
RGB = np.reshape(RGB, (4, 4, 4, 3))
YcCbcCrc = np.tile(YcCbcCrc, 4)
YcCbcCrc = np.reshape(YcCbcCrc, (4, 4, 4, 3))
np.testing.assert_almost_equal(RGB_to_YcCbcCrc(RGB),
YcCbcCrc,
decimal=7)
def test_n_dimensional_RGB_to_YcCbcCrc(self):
"""
Tests :func:`colour.models.rgb.ycbcr.RGB_to_YcCbcCrc` definition
n-dimensional arrays support.
"""
RGB = np.array([0.75, 0.5, 0.25])
YcCbcCrc = np.array([0.69738693, 0.38700523, 0.61084888])
np.testing.assert_almost_equal(RGB_to_YcCbcCrc(RGB),
YcCbcCrc,
decimal=7)
RGB = np.tile(RGB, 4)
RGB = np.reshape(RGB, (4, 3))
YcCbcCrc = np.tile(YcCbcCrc, 4)
YcCbcCrc = np.reshape(YcCbcCrc, (4, 3))
np.testing.assert_almost_equal(RGB_to_YcCbcCrc(RGB),
YcCbcCrc,
decimal=7)
RGB = np.tile(RGB, 4)
RGB = np.reshape(RGB, (4, 4, 3))
YcCbcCrc = np.tile(YcCbcCrc, 4)
YcCbcCrc = np.reshape(YcCbcCrc, (4, 4, 3))
np.testing.assert_almost_equal(RGB_to_YcCbcCrc(RGB),
YcCbcCrc,
decimal=7)
RGB = np.tile(RGB, 4)
RGB = np.reshape(RGB, (4, 4, 4, 3))
YcCbcCrc = np.tile(YcCbcCrc, 4)
YcCbcCrc = np.reshape(YcCbcCrc, (4, 4, 4, 3))
np.testing.assert_almost_equal(RGB_to_YcCbcCrc(RGB),
YcCbcCrc,
decimal=7)
def test_domain_range_scale_RGB_to_YcCbcCrc(self):
"""
Tests :func:`colour.models.rgb.prismatic.RGB_to_YcCbcCrc` definition
domain and range scale support.
"""
RGB = np.array([0.45620519, 0.03081071, 0.04091952])
YcCbcCrc = RGB_to_YcCbcCrc(RGB)
d_r = (('reference', 1), (1, 1), (100, 100))
for scale, factor in d_r:
with domain_range_scale(scale):
np.testing.assert_almost_equal(RGB_to_YcCbcCrc(RGB * factor),
YcCbcCrc * factor,
decimal=7)
def test_RGB_to_YcCbcCrc(self):
"""
Tests :func:`colour.models.rgb.ycbcr.RGB_to_YcCbcCrc` definition.
"""
np.testing.assert_almost_equal(
RGB_to_YcCbcCrc(np.array([0.45620519, 0.03081071, 0.04091952])),
np.array([0.37020379, 0.41137200, 0.77704674]),
decimal=7)
np.testing.assert_almost_equal(RGB_to_YcCbcCrc(
np.array([0.18, 0.18, 0.18]),
out_bits=10,
out_legal=True,
out_int=True,
is_12_bits_system=False),
np.array([422, 512, 512]),
decimal=7)
def test_RGB_to_YcCbcCrc(self):
"""
Tests :func:`colour.models.rgb.ycbcr.RGB_to_YcCbcCrc` definition.
"""
np.testing.assert_almost_equal(
RGB_to_YcCbcCrc(np.array([0.123, 0.456, 0.789])),
np.array([0.59258892, 0.64993099, 0.35269847]),
decimal=7)
np.testing.assert_almost_equal(RGB_to_YcCbcCrc(
np.array([0.18, 0.18, 0.18]),
out_bits=10,
out_legal=True,
out_int=True,
is_12_bits_system=False),
np.array([422, 512, 512]),
decimal=7)
def test_nan_RGB_to_YcCbcCrc(self):
"""
Tests :func:`colour.models.rgb.ycbcr.RGB_to_YcCbcCrc` definition nan
support.
"""
cases = [-1.0, 0.0, 1.0, -np.inf, np.inf, np.nan]
cases = set(permutations(cases * 3, r=3))
for case in cases:
RGB = np.array(case)
RGB_to_YcCbcCrc(RGB)
