private void videoSourcePlayer1_NewFrame(object sender, ref Bitmap image) { Invert inv = new Invert(); inv.ApplyInPlace(image); UnmanagedImage ui = UnmanagedImage.FromManagedImage(image); pictureBox1.Image = image; if (controller.Tracker.TrackingObject == null) return; if (controller.Tracker.TrackingObject.IsEmpty) return; var rect = controller.Tracker.TrackingObject.Rectangle; Crop crop = new Crop(rect); UnmanagedImage head = crop.Apply(ui); var points = new List<IntPoint>() { new IntPoint(head.Width / 2, head.Height / 2) }; var pps = head.Collect16bppPixelValues(points); double mean = Accord.Statistics.Tools.Mean(pps); double cutoff = mean + 15; Threshold t = new Threshold((int)cutoff); var mask = t.Apply(ui); LevelsLinear16bpp levels = new LevelsLinear16bpp(); levels.InGray = new IntRange((int)cutoff, 65535); levels.OutGray = new IntRange(0, 65535); levels.ApplyInPlace(ui); var mask8bit = AForge.Imaging.Image.Convert16bppTo8bpp(mask.ToManagedImage()); BlobCounter bc = new BlobCounter(); bc.ObjectsOrder = ObjectsOrder.Area; bc.ProcessImage(mask8bit); var blobs = bc.GetObjectsInformation(); inv.ApplyInPlace(image); Intersect intersect = new Intersect(); intersect.UnmanagedOverlayImage = mask; mask = intersect.Apply(ui); List<Rectangle> rects = new List<Rectangle>(); // Extract the uppermost largest blobs. for (int i = 0; i < blobs.Length; i++) { double dx = (blobs[i].Rectangle.Top - controller.Tracker.TrackingObject.Center.Y); double d = (dx * dx) / controller.Tracker.TrackingObject.Area; if (d < 2 && blobs[i].Area > 1000) rects.Add(blobs[i].Rectangle); } rects.Sort(compare); if (rects.Count > 0) { captureHand(mask, rects[0], pbLeftArm, pbLeftHand); } if (rects.Count > 1) { captureHand(mask, rects[1], pbRightArm, pbRightHand); } RectanglesMarker marker = new RectanglesMarker(rects); marker.MarkerColor = Color.White; marker.ApplyInPlace(mask8bit); image = mask.ToManagedImage(); }
private Bitmap getThreeFrameDifference(Bitmap frame) { if (lastFrame == null || lastButOneFrame == null) { return null; } Difference filterPrevious = new Difference(lastButOneFrame); Bitmap differenceBitmapPrevious = filterPrevious.Apply(lastFrame); Difference filterNext = new Difference(lastFrame); Bitmap differenceBitmapNext = filterNext.Apply(frame); Intersect intersectionFilter = new Intersect(differenceBitmapPrevious); Bitmap threeFrameDifferenceBitmap = intersectionFilter.Apply(differenceBitmapNext); return threeFrameDifferenceBitmap; }