/// <summary>
/// Detect the features in the image
/// </summary>
/// <param name="keypoints">The result vector of keypoints</param>
/// <param name="image">The image from which the features will be detected from</param>
/// <param name="mask">The optional mask.</param>
public void DetectRaw(IInputArray image, VectorOfKeyPoint keypoints, IInputArray mask = null)
{
using (InputArray iaImage = image.GetInputArray())
using (InputArray iaMask = mask == null ? InputArray.GetEmpty() : mask.GetInputArray())
Features2DInvoke.CvFeature2DDetect(_feature2D, iaImage, keypoints.Ptr, iaMask);
}
