private static QuantumStrategy getQuantization(QuantumDef qd, PixelsType type)
private static QuantumStrategy getQuantization(QuantumDef qd, PixelsType type, IPixels iPixels)
    private static QuantumStrategy getQuantization(QuantumDef qd, PixelsType type)    {        return new Quantization_8_16_bit(qd, type);    }