public List<double[]> extract(Bitmap image, string detector) { EHD_Descriptor ehdLocal = new EHD_Descriptor(11); Bitmap bmpImage = new Bitmap(image); createPoints pointsCreator = new createPoints(); List<Keypoint> keypointsList = null; if (detector == "SURF") keypointsList = pointsCreator.usingSurf(image); else if (detector == "SIFT") keypointsList = pointsCreator.usingSift(image); else throw new Exception("Cannot recognize Detector"); #region EHD_Local Rectangle cloneRect; Bitmap bmpCrop; double[] ehdDescriptor = new double[80]; List<double[]> tilesDescriptors = new List<double[]>(); foreach (Keypoint myKeypoint in keypointsList) { cloneRect = new Rectangle((int)(myKeypoint.X - (int)myKeypoint.Size / 2), (int)(myKeypoint.Y - (int)myKeypoint.Size / 2), (int)myKeypoint.Size, (int)myKeypoint.Size); bmpCrop = new Bitmap(bmpImage.Clone(cloneRect, bmpImage.PixelFormat)); ehdDescriptor = ehdLocal.Apply(new Bitmap(bmpCrop)); ehdDescriptor = ehdLocal.Quant(ehdDescriptor); tilesDescriptors.Add(ehdDescriptor); } #endregion return tilesDescriptors; }
public List <double[]> extract(Bitmap image, string detector) { EHD_Descriptor ehdLocal = new EHD_Descriptor(11); Bitmap bmpImage = new Bitmap(image); createPoints pointsCreator = new createPoints(); List <Keypoint> keypointsList = null; if (detector == "SURF") { keypointsList = pointsCreator.usingSurf(image); } else if (detector == "SIFT") { keypointsList = pointsCreator.usingSift(image); } else { throw new Exception("Cannot recognize Detector"); } #region EHD_Local Rectangle cloneRect; Bitmap bmpCrop; double[] ehdDescriptor = new double[80]; List <double[]> tilesDescriptors = new List <double[]>(); foreach (Keypoint myKeypoint in keypointsList) { cloneRect = new Rectangle((int)(myKeypoint.X - (int)myKeypoint.Size / 2), (int)(myKeypoint.Y - (int)myKeypoint.Size / 2), (int)myKeypoint.Size, (int)myKeypoint.Size); bmpCrop = new Bitmap(bmpImage.Clone(cloneRect, bmpImage.PixelFormat)); ehdDescriptor = ehdLocal.Apply(new Bitmap(bmpCrop)); ehdDescriptor = ehdLocal.Quant(ehdDescriptor); tilesDescriptors.Add(ehdDescriptor); } #endregion return(tilesDescriptors); }