def test_g_solve(self):
"""
Tests :func:`colour_hdri.calibration.debevec1997.g_solve` definition.
"""
image_stack = ImageStack.from_files(JPG_IMAGES)
L_l = np.log(average_luminance(image_stack.f_number,
image_stack.exposure_time,
image_stack.iso))
samples = samples_Grossberg2003(image_stack.data)
for i in range(3):
g, lE = g_solve(samples[..., i], L_l)
# Lower precision for unit tests under *travis-ci*.
np.testing.assert_allclose(
g[0:-2],
np.load(os.path.join(
CALIBRATION_DIRECTORY,
'test_g_solve_g_{0}.npy'.format(i)))[0:-2],
rtol=0.001,
atol=0.001)
# Lower precision for unit tests under *travis-ci*.
np.testing.assert_allclose(
lE[1:],
np.load(os.path.join(
CALIBRATION_DIRECTORY,
'test_g_solve_lE_{0}.npy'.format(i)))[1:],
rtol=0.001,
atol=0.001)
def test_g_solve(self):
"""
Tests :func:`colour_hdri.calibration.debevec1997.g_solve` definition.
"""
image_stack = ImageStack.from_files(JPG_IMAGES)
L_l = np.log(1 / average_luminance(
image_stack.f_number, image_stack.exposure_time, image_stack.iso))
samples = samples_Grossberg2003(image_stack.data)
for i in range(3):
g, lE = g_solve(samples[..., i], L_l)
# Lower precision for unit tests under *travis-ci*.
np.testing.assert_allclose(
g[0:-2],
np.load(
os.path.join(CALIBRATION_DIRECTORY,
'test_g_solve_g_{0}.npy'.format(i)))[0:-2],
rtol=0.001,
atol=0.001)
# Lower precision for unit tests under *travis-ci*.
np.testing.assert_allclose(
lE[1:],
np.load(
os.path.join(CALIBRATION_DIRECTORY,
'test_g_solve_lE_{0}.npy'.format(i)))[1:],
rtol=0.001,
atol=0.001)
def test_samples_Grossberg2003(self):
"""
Tests :func:`colour_hdri.sampling.grossberg2003.\
samples_Grossberg2003` definition.
"""
np.testing.assert_almost_equal(
samples_Grossberg2003(ImageStack.from_files(JPG_IMAGES).data),
np.load(
os.path.join(SAMPLING_DIRECTORY,
'test_samples_Grossberg2003.npy')),
decimal=7)
def test_samples_Grossberg2003(self):
"""
Tests :func:`colour_hdri.sampling.grossberg2003.\
samples_Grossberg2003` definition.
"""
np.testing.assert_almost_equal(
samples_Grossberg2003(ImageStack.from_files(JPG_IMAGES).data),
np.load(os.path.join(
SAMPLING_DIRECTORY,
'test_samples_Grossberg2003.npy')),
decimal=7)
