def xy_to_XYZ(xy, Y=1):
    x, y = xy
    X = (x * Y) / y
    Z = ((1 - x - y) * Y) / y
    return [X, Y, Z]
Convert xyY into XYZ
dataset/ETHPy150Open mikrosimage/ColorPipe-tools/utils/colors_helper.py/xy_to_XYZ