def transfer_function_Rec1886_to_linear(v):
    """
    The Rec.1886 transfer function.

    Parameters
    ----------
    v : float
        The normalized value to pass through the function.

    Returns
    -------
    float
        A converted value.
    """

    g = 2.4
    Lw = 1
    Lb = 0

    # Ignoring legal to full scaling for now.
    # v = (1023.0*v - 64.0)/876.0

    t = pow(Lw, 1.0 / g) - pow(Lb, 1.0 / g)
    a = pow(t, g)
    b = pow(Lb, 1.0 / g) / t

    return a * pow(max((v + b), 0.0), g)