/// <summary>
/// Create a FisherFaceRecognizer
/// </summary>
/// <param name="numComponents">The number of components, use 0 for default</param>
/// <param name="threshold">The distance threshold</param>
public FisherFaceRecognizer(int numComponents, double threshold)
{
_ptr = CvInvoke.CvFisherFaceRecognizerCreate(numComponents, threshold);
}