def test_kernel_lanczos(self):
"""
Tests :func:`colour.algebra.interpolation.kernel_lanczos` definition.
"""
np.testing.assert_almost_equal(
kernel_lanczos(np.linspace(-5, 5, 25)),
np.array([
0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00,
0.00000000e+00, 8.06009483e-04, 2.43170841e-02, 1.48478897e-02,
-9.33267411e-02, -1.32871018e-01, 1.67651704e-01,
7.14720157e-01, 1.00000000e+00, 7.14720157e-01, 1.67651704e-01,
-1.32871018e-01, -9.33267411e-02, 1.48478897e-02,
2.43170841e-02, 8.06009483e-04, 0.00000000e+00, 0.00000000e+00,
0.00000000e+00, 0.00000000e+00, 0.00000000e+00
]),
decimal=7)
np.testing.assert_almost_equal(
kernel_lanczos(np.linspace(-5, 5, 25), 1),
np.array([
0.00000000, 0.00000000, 0.00000000, 0.00000000, 0.00000000,
0.00000000, 0.00000000, 0.00000000, 0.00000000, 0.00000000,
0.03647563, 0.54451556, 1.00000000, 0.54451556, 0.03647563,
0.00000000, 0.00000000, 0.00000000, 0.00000000, 0.00000000,
0.00000000, 0.00000000, 0.00000000, 0.00000000, 0.00000000
]),
decimal=7)
def test_kernel_lanczos(self):
"""
Tests :func:`colour.algebra.interpolation.kernel_lanczos` definition.
"""
np.testing.assert_almost_equal(
kernel_lanczos(np.linspace(-5, 5, 25)),
np.array([
0.00000000e+00, 0.00000000e+00, 0.00000000e+00, 0.00000000e+00,
0.00000000e+00, 8.06009483e-04, 2.43170841e-02, 1.48478897e-02,
-9.33267411e-02, -1.32871018e-01, 1.67651704e-01,
7.14720157e-01, 1.00000000e+00, 7.14720157e-01, 1.67651704e-01,
-1.32871018e-01, -9.33267411e-02, 1.48478897e-02,
2.43170841e-02, 8.06009483e-04, 0.00000000e+00, 0.00000000e+00,
0.00000000e+00, 0.00000000e+00, 0.00000000e+00
]),
decimal=7)
np.testing.assert_almost_equal(
kernel_lanczos(np.linspace(-5, 5, 25), 1),
np.array([
0.00000000, 0.00000000, 0.00000000, 0.00000000, 0.00000000,
0.00000000, 0.00000000, 0.00000000, 0.00000000, 0.00000000,
0.03647563, 0.54451556, 1.00000000, 0.54451556, 0.03647563,
0.00000000, 0.00000000, 0.00000000, 0.00000000, 0.00000000,
0.00000000, 0.00000000, 0.00000000, 0.00000000, 0.00000000
]),
decimal=7)