public List<double[]> extract(Bitmap image, string detector) { SCD_Descriptor scdLocal = new SCD_Descriptor(); 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 SCD_Local Rectangle cloneRect; Bitmap bmpCrop; double[] scdDescriptor = new double[256]; 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)); scdLocal.Apply(new Bitmap(bmpCrop), 256, 0); scdDescriptor = scdLocal.Norm4BitHistogram; tilesDescriptors.Add(scdDescriptor); } #endregion return tilesDescriptors; }
public List <double[]> extract(Bitmap image, string detector) { SCD_Descriptor scdLocal = new SCD_Descriptor(); 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 SCD_Local Rectangle cloneRect; Bitmap bmpCrop; double[] scdDescriptor = new double[256]; 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)); scdLocal.Apply(new Bitmap(bmpCrop), 256, 0); scdDescriptor = scdLocal.Norm4BitHistogram; tilesDescriptors.Add(scdDescriptor); } #endregion return(tilesDescriptors); }