Python delta_E_Luo2006 Examples

Example #1

    def test_n_dimensional_delta_E_Luo2006(self):
        """
        Tests :func:`colour.difference.cam02_ucs.delta_E_Luo2006` definition
        n-dimensional arrays support.
        """

        Jpapbp_1 = np.array([54.90433134, -0.08450395, -0.06854831])
        Jpapbp_2 = np.array([54.80352754, -3.96940084, -13.57591013])
        delta_E_p = 14.055546437777583
        np.testing.assert_almost_equal(delta_E_Luo2006(
            Jpapbp_1, Jpapbp_2, COEFFICIENTS_UCS_LUO2006['CAM02-LCD']),
                                       delta_E_p,
                                       decimal=7)

        Jpapbp_1 = np.tile(Jpapbp_1, (6, 1))
        Jpapbp_2 = np.tile(Jpapbp_2, (6, 1))
        delta_E_p = np.tile(delta_E_p, 6)
        np.testing.assert_almost_equal(delta_E_Luo2006(
            Jpapbp_1, Jpapbp_2, COEFFICIENTS_UCS_LUO2006['CAM02-LCD']),
                                       delta_E_p,
                                       decimal=7)

        Jpapbp_1 = np.reshape(Jpapbp_1, (2, 3, 3))
        Jpapbp_2 = np.reshape(Jpapbp_2, (2, 3, 3))
        delta_E_p = np.reshape(delta_E_p, (2, 3))
        np.testing.assert_almost_equal(delta_E_Luo2006(
            Jpapbp_1, Jpapbp_2, COEFFICIENTS_UCS_LUO2006['CAM02-LCD']),
                                       delta_E_p,
                                       decimal=7)

Example #2

File: test_cam02_ucs.py Project: colour-science/colour

    def test_n_dimensional_delta_E_Luo2006(self):
        """
        Tests :func:`colour.difference.cam02_ucs.delta_E_Luo2006` definition
        n-dimensional arrays support.
        """

        Jpapbp_1 = np.array([54.90433134, -0.08450395, -0.06854831])
        Jpapbp_2 = np.array([54.80352754, -3.96940084, -13.57591013])
        delta_E_p = delta_E_Luo2006(Jpapbp_1, Jpapbp_2,
                                    COEFFICIENTS_UCS_LUO2006['CAM02-LCD'])

        Jpapbp_1 = np.tile(Jpapbp_1, (6, 1))
        Jpapbp_2 = np.tile(Jpapbp_2, (6, 1))
        delta_E_p = np.tile(delta_E_p, 6)
        np.testing.assert_almost_equal(
            delta_E_Luo2006(Jpapbp_1, Jpapbp_2,
                            COEFFICIENTS_UCS_LUO2006['CAM02-LCD']),
            delta_E_p,
            decimal=7)

        Jpapbp_1 = np.reshape(Jpapbp_1, (2, 3, 3))
        Jpapbp_2 = np.reshape(Jpapbp_2, (2, 3, 3))
        delta_E_p = np.reshape(delta_E_p, (2, 3))
        np.testing.assert_almost_equal(
            delta_E_Luo2006(Jpapbp_1, Jpapbp_2,
                            COEFFICIENTS_UCS_LUO2006['CAM02-LCD']),
            delta_E_p,
            decimal=7)

Example #3

    def test_nan_delta_E_Luo2006(self):
        """
        Tests :func:`colour.difference.cam02_ucs.delta_E_Luo2006`
        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:
            Jpapbp_1 = np.array(case)
            Jpapbp_2 = np.array(case)
            delta_E_Luo2006(Jpapbp_1, Jpapbp_2,
                            COEFFICIENTS_UCS_LUO2006['CAM02-LCD']),

Example #4

File: test_cam02_ucs.py Project: colour-science/colour

    def test_nan_delta_E_Luo2006(self):
        """
        Tests :func:`colour.difference.cam02_ucs.delta_E_Luo2006`
        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:
            Jpapbp_1 = np.array(case)
            Jpapbp_2 = np.array(case)
            delta_E_Luo2006(Jpapbp_1, Jpapbp_2,
                            COEFFICIENTS_UCS_LUO2006['CAM02-LCD']),

Example #5

File: test_cam02_ucs.py Project: colour-science/colour

    def test_delta_E_Luo2006(self):
        """Test :func:`colour.difference.cam02_ucs.delta_E_Luo2006` definition."""

        self.assertAlmostEqual(
            delta_E_Luo2006(
                np.array([54.90433134, -0.08450395, -0.06854831]),
                np.array([54.80352754, -3.96940084, -13.57591013]),
                COEFFICIENTS_UCS_LUO2006["CAM02-LCD"],
            ),
            14.055546437777583,
            places=7,
        )

        self.assertAlmostEqual(
            delta_E_Luo2006(
                np.array([54.90433134, -0.08450395, -0.06854831]),
                np.array([54.80352754, -3.96940084, -13.57591013]),
                COEFFICIENTS_UCS_LUO2006["CAM02-LCD"],
            ),
            delta_E_CAM02LCD(
                np.array([54.90433134, -0.08450395, -0.06854831]),
                np.array([54.80352754, -3.96940084, -13.57591013]),
            ),
            places=7,
        )

        self.assertAlmostEqual(
            delta_E_Luo2006(
                np.array([54.90433134, -0.08450395, -0.06854831]),
                np.array([54.80352754, -3.96940084, -13.57591013]),
                COEFFICIENTS_UCS_LUO2006["CAM02-SCD"],
            ),
            delta_E_CAM02SCD(
                np.array([54.90433134, -0.08450395, -0.06854831]),
                np.array([54.80352754, -3.96940084, -13.57591013]),
            ),
            places=7,
        )

        self.assertAlmostEqual(
            delta_E_Luo2006(
                np.array([54.90433134, -0.08450395, -0.06854831]),
                np.array([54.80352754, -3.96940084, -13.57591013]),
                COEFFICIENTS_UCS_LUO2006["CAM02-UCS"],
            ),
            delta_E_CAM02UCS(
                np.array([54.90433134, -0.08450395, -0.06854831]),
                np.array([54.80352754, -3.96940084, -13.57591013]),
            ),
            places=7,
        )

Example #6

File: test_cam02_ucs.py Project: colour-science/colour

    def test_delta_E_Luo2006(self):
        """
        Tests :func:`colour.difference.cam02_ucs.delta_E_Luo2006` definition.
        """

        self.assertAlmostEqual(
            delta_E_Luo2006(
                np.array([54.90433134, -0.08450395, -0.06854831]),
                np.array([54.80352754, -3.96940084, -13.57591013]),
                COEFFICIENTS_UCS_LUO2006['CAM02-LCD']),
            14.055546437777583,
            places=7)

        self.assertAlmostEqual(
            delta_E_Luo2006(
                np.array([54.90433134, -0.08450395, -0.06854831]),
                np.array([54.80352754, -3.96940084, -13.57591013]),
                COEFFICIENTS_UCS_LUO2006['CAM02-LCD']),
            delta_E_CAM02LCD(
                np.array([54.90433134, -0.08450395, -0.06854831]),
                np.array([54.80352754, -3.96940084, -13.57591013])),
            places=7)

        self.assertAlmostEqual(
            delta_E_Luo2006(
                np.array([54.90433134, -0.08450395, -0.06854831]),
                np.array([54.80352754, -3.96940084, -13.57591013]),
                COEFFICIENTS_UCS_LUO2006['CAM02-SCD']),
            delta_E_CAM02SCD(
                np.array([54.90433134, -0.08450395, -0.06854831]),
                np.array([54.80352754, -3.96940084, -13.57591013])),
            places=7)

        self.assertAlmostEqual(
            delta_E_Luo2006(
                np.array([54.90433134, -0.08450395, -0.06854831]),
                np.array([54.80352754, -3.96940084, -13.57591013]),
                COEFFICIENTS_UCS_LUO2006['CAM02-UCS']),
            delta_E_CAM02UCS(
                np.array([54.90433134, -0.08450395, -0.06854831]),
                np.array([54.80352754, -3.96940084, -13.57591013])),
            places=7)