/// <summary>
/// Create a LBPH face recognizer
/// </summary>
/// <param name="radius">Radius, use 1 for default</param>
/// <param name="neighbors">Neighbors, use 8 for default</param>
/// <param name="gridX">Grid X, use 8 for default</param>
/// <param name="gridY">Grid Y, use 9 for default</param>
/// <param name="threshold">The distance threshold</param>
public LBPHFaceRecognizer(int radius, int neighbors, int gridX, int gridY, double threshold)
{
_ptr = CvInvoke.CvLBPHFaceRecognizerCreate(radius, neighbors, gridX, gridY, threshold);
}