def xy_to_upvp(xy):
    x, y = xy
    up = 4 * x / (-2 * x + 12 * y + 3)
    vp = 9 * y / (-2 * x + 12 * y + 3)
    return [up, vp]
Convert xy to u'v'
dataset/ETHPy150Open mikrosimage/ColorPipe-tools/utils/colors_helper.py/xy_to_upvp