Ejemplo n.º 1
0
 public void CreateFilters() {
     grayscaleFilter = new Grayscale(0.2125, 0.7154, 0.0721);
     sobelFilter = new SobelEdgeDetector();
     dilitationFilter = new Dilatation3x3();
     thresholdFilter = new Threshold(100);
     blobCounter = new BlobCounter {MinHeight = 200, MinWidth = 200, FilterBlobs = true, ObjectsOrder = ObjectsOrder.Size};
     shapeChecker = new SimpleShapeChecker();
     binaryGlyphRecognizer = new SquareBinaryGlyphRecognizer(5); // 5x5 matrica
     invertFilter = new Invert();
     rotateFilter = new RotateBilinear(90);
     pen = new Pen(Color.CornflowerBlue, 4);
     mirrorFilter = new Mirror(false, true);
     hullFinder = new GrahamConvexHull();
     otsuThresholdFilter = new OtsuThreshold();
 }
Ejemplo n.º 2
0
        static void Main(string[] args)
        {
            Threshold                   thresh        = new Threshold(10);
            Median                      median        = new Median(9);
            Erosion3x3                  erode         = new Erosion3x3();
            Dilatation3x3               dilate        = new Dilatation3x3();
            GrahamConvexHull            hullFinder    = new GrahamConvexHull();
            ConnectedComponentsLabeling ccLabeler     = new ConnectedComponentsLabeling();
            BorderFollowing             contourFinder = new BorderFollowing();
            GrayscaleToRGB              rgb           = new GrayscaleToRGB();
            ConvexHullDefects           defectFinder  = new ConvexHullDefects(10);

            Bitmap img = (Bitmap)Bitmap.FromFile("hand3.jpg");

            Bitmap image = Grayscale.CommonAlgorithms.BT709.Apply(img);

            thresh.ApplyInPlace(image);
            //median.ApplyInPlace(image);
            erode.ApplyInPlace(image);
            dilate.ApplyInPlace(image);

            BlobCounter counter = new BlobCounter(image);

            counter.ObjectsOrder = ObjectsOrder.Area;

            Blob[] blobs = counter.GetObjectsInformation();

            if (blobs.Length > 0)
            {
                counter.ExtractBlobsImage(image, blobs[0], true);

                UnmanagedImage hand = blobs[0].Image;

                var contour = contourFinder.FindContour(hand);

                if (contour.Count() > 0)
                {
                    var initialHull = hullFinder.FindHull(contour);

                    var defects = defectFinder.FindDefects(contour, initialHull);

                    var filteredHull = initialHull.ClusterHullPoints().FilterLinearHullPoints();

                    var palmCenter = defects.Centroid(contour);

                    var wristPoints = filteredHull.SelectWristPoints(defects, contour);

                    Bitmap color = rgb.Apply(hand).ToManagedImage();

                    //BitmapData data = color.LockBits(new Rectangle(0, 0, color.Width, color.Height), ImageLockMode.ReadWrite, color.PixelFormat);
                    //Drawing.Polyline(data, contour, Color.Blue);
                    //Drawing.Polygon(data, filteredHull, Color.Red);
                    //color.UnlockBits(data);

                    Graphics gr = Graphics.FromImage(color);

                    gr.DrawPolygon(new Pen(Brushes.Red, 3), filteredHull.ToPtArray());
                    gr.DrawLines(new Pen(Brushes.Blue, 3), contour.ToPtArray());
                    gr.DrawEllipse(new Pen(Brushes.Red, 3), palmCenter.X - 10, palmCenter.Y - 10, 20, 20);

                    foreach (ConvexityDefect defect in defects)
                    {
                        gr.DrawEllipse(new Pen(Brushes.Green, 6), contour[defect.Point].X - 10, contour[defect.Point].Y - 10, 20, 20);
                    }

                    foreach (AForge.IntPoint pt in filteredHull)
                    {
                        gr.DrawEllipse(new Pen(Brushes.Yellow, 6), pt.X - 10, pt.Y - 10, 20, 20);
                    }

                    foreach (AForge.IntPoint pt in wristPoints)
                    {
                        gr.DrawEllipse(new Pen(Brushes.PowderBlue, 6), pt.X - 10, pt.Y - 10, 20, 20);
                    }

                    ImageBox.Show(color);
                }
            }
        }