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copied!<p>as you know I'm the creator of the code you are using.</p> <p>One of my reader find sometimes an issue similar to yours, commented my post and suggest to remove the using Memstorage and put it globally then clear the storage inside <code>DrawAndComputeFingersNum()</code> function</p> <pre><code>MemStorage storage = new MemStorage() //Global Declaration private void DrawAndComputeFingersNum() { int fingerNum = 0; #region hull drawing //for (int i = 0; i < filteredHull.Total; i++) //{ // PointF hullPoint = new PointF((float)filteredHull[i].X, // (float)filteredHull[i].Y); // CircleF hullCircle = new CircleF(hullPoint, 4); // image.Draw(hullCircle, new Bgr(Color.Aquamarine), 2); //} #endregion #region defects drawing defects = new Seq<MCvConvexityDefect>(storage); for (int i = 0; i < defects.Total; i++) { PointF startPoint = new PointF((float)defectArray[i].StartPoint.X, (float)defectArray[i].StartPoint.Y); PointF depthPoint = new PointF((float)defectArray[i].DepthPoint.X, (float)defectArray[i].DepthPoint.Y); PointF endPoint = new PointF((float)defectArray[i].EndPoint.X, (float)defectArray[i].EndPoint.Y); LineSegment2D startDepthLine = new LineSegment2D(defectArray[i].StartPoint, defectArray[i].DepthPoint); LineSegment2D depthEndLine = new LineSegment2D(defectArray[i].DepthPoint, defectArray[i].EndPoint); CircleF startCircle = new CircleF(startPoint, 5f); CircleF depthCircle = new CircleF(depthPoint, 5f); CircleF endCircle = new CircleF(endPoint, 5f); MCvFont angga = new MCvFont(Emgu.CV.CvEnum.FONT.CV_FONT_HERSHEY_SCRIPT_COMPLEX, 0.5, 0.5); // image.Draw(defectArray[i].StartPoint.X.ToString() + " , " + defectArray[i].StartPoint.Y.ToString(), ref angga, new Point(defectArray[i].StartPoint.X, defectArray[i].StartPoint.Y), new Bgr(Color.Red)); image.Draw(defectArray[i].StartPoint.X.ToString() + " , " + defectArray[i].StartPoint.Y.ToString() + " , " + i.ToString(), ref angga, new Point(defectArray[i].StartPoint.X, defectArray[i].StartPoint.Y), new Bgr(Color.Red)); //Custom heuristic based on some experiment, double check it before use if ((startCircle.Center.Y < box.center.Y || depthCircle.Center.Y < box.center.Y) && (startCircle.Center.Y < depthCircle.Center.Y) && (Math.Sqrt(Math.Pow(startCircle.Center.X - depthCircle.Center.X, 2) + Math.Pow(startCircle.Center.Y - depthCircle.Center.Y, 2)) > box.size.Height / 6.5)) { fingerNum++; //image.Draw(startDepthLine, new Bgr(Color.Blue), 2); //image.Draw(depthEndLine, new Bgr(Color.Magenta), 2); } image.Draw(startCircle, new Bgr(Color.Red), 2); image.Draw(depthCircle, new Bgr(Color.Yellow), 5); //image.Draw(endCircle, new Bgr(Color.DarkBlue), 4); } #endregion MCvFont font = new MCvFont(Emgu.CV.CvEnum.FONT.CV_FONT_HERSHEY_DUPLEX, 5d, 5d); image.Draw(fingerNum.ToString(), ref font, new Point(50, 150), new Bgr(Color.White)); hand.fingerChangedCompute = fingerNum; storage.clear(); // clear storage allocation } </code></pre>

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