conversion.java

private static final double[][] RGB_TO_LMS = {
        {0.3811, 0.5783, 0.0402},
        {0.1967, 0.7244, 0.0782},
        {0.0241, 0.1288, 0.8444}
};

private static final double[][] LOG_LMS_TO_LAB = {
        {0.5773502691896258,  0.5773502691896258,  0.5773502691896258},
        {0.4082482904638631,  0.4082482904638631, -0.8164965809277261},
        {0.7071067811865475, -0.7071067811865475,  0.0}
};

private static final double[][] LAB_TO_LOG_LMS = {
        {0.5773502691896258,  0.4082482904638631,  0.7071067811865475},
        {0.5773502691896258,  0.4082482904638631, -0.7071067811865475},
        {0.5773502691896258, -0.8164965809277261,  0.0}
};

private static final double[][] LMS_TO_RGB = {
        { 4.4679, -3.5873,  0.1193},
        {-1.2186,  2.3809, -0.1624},
        { 0.0497, -0.2439,  1.2045}
};