cSharp-code.rar_flow csharp_optical flow_them

using System.Collections.Generic; using System.Data; using System.Drawing; using System.Diagnostics; //using Microsoft.VisualBasic; using System.Linq; using System; using System.Collections; using System.Xml.Linq; using System.Windows.Forms; //using Microsoft.VisualBasic.CompilerServices; namespace WindowsApplication1 { public partial class Form1 { public Form1() { InitializeComponent(); //Added to support default instance behavour in C# if (defaultInstance == null) defaultInstance = this; } #region Default Instance private static Form1 defaultInstance; /// <summary> /// Added by the VB.Net to C# Converter to support default instance behavour in C# /// </summary> public static Form1 Default { get { if (defaultInstance == null) { defaultInstance = new Form1(); defaultInstance.FormClosed += new FormClosedEventHandler(defaultInstance_FormClosed); } return defaultInstance; } } static void defaultInstance_FormClosed(object sender, FormClosedEventArgs e) { defaultInstance = null; } #endregion public class cvCalcOpticalFlowPyrLK { public cvCalcOpticalFlowPyrLK() { flags = Emgu.CV.CvEnum.LKFLOW_TYPE.DEFAULT; } private WindowsApplication1.Capture captureCV; private bool captureInProgress; const int radius = 5; bool defineCorners = false; PointF[][] puntiA = new PointF[1][]; PointF[][] puntiB = new PointF[1][]; PointF[][] puntiTemp; PointF[][] puntiBtemp = new PointF[1][]; bool add_remove_pt = false; int count = 0; Image.CV.Image.CV.Image<CV.Structure.Bgr, byte> frame; Image<WindowsApplication1.Gray, byte> grayA; Image<WindowsApplication1.Gray, byte> grayB; Image.Image<CV.Structure.Gray, byte> pyrBufferA; Image<CV.Structure.Gray, byte> pyrBufferB; Image<CV.Structure.Gray, byte> imgTemp; CvEnum.LKFLOW_TYPE.LKFLOW_TYPE flags; byte[] status; float[] errors; private void Button1_Click(System.Object sender, System.EventArgs e) { if (captureCV == null) { try { captureCV = new Emgu.CV.Capture(); } catch (NullReferenceException excpt) { MessageBox.Show(excpt.Message); } } if (captureCV != null) { if (captureInProgress) { this.Button1.Text = "Start Capture"; Application.Idle -= new System.EventHandler(new EventHandler(this.ProcessFrame)); } else { this.Button1.Text = "Stop"; Application.Idle += new System.EventHandler(new EventHandler(this.ProcessFrame)); // set form and Imagebox size Emgu.CV.Image<Emgu.CV.Structure.Bgr, byte> frame = captureCV.QueryFrame; grayA = frame.Convert<Emgu.CV.Structure.Gray, byte>(); pyrBufferA = new Emgu.CV.Image<Emgu.CV.Structure.Gray, byte>(frame.Width + 8, frame.Height / 3); pyrBufferB = new Emgu.CV.Image<Emgu.CV.Structure.Gray, byte>(frame.Width + 8, frame.Height / 3); // dimensiona i riquadri ImageBox1.Width = System.Convert.ToInt32(frame.Width); ImageBox1.Height = System.Convert.ToInt32(frame.Height); this.Width = frame.Width + 30; this.Height = frame.Height + 100; } captureInProgress = System.Convert.ToBoolean(!captureInProgress); } } // add points with GoodFeaturesToTrack private void Button2_Click(System.Object sender, System.EventArgs e) { defineCorners = true; } // add one point where the user clicks public void ImageBox1_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e) { if (e.Button == MouseButtons.Left) { bool removedpoint = false; double radiussquare = System.Convert.ToDouble(Math.Pow(radius, 2)); //Dim puntitemp(0)() As PointF if (count > 0) { int k = 0; for (int i = 0; i <= count - 1; i++) { double dx = e.X - puntiB(0)[i].X; double dy = e.Y - puntiB(0)[i].Y; if (dx * dx + dy * dy >= radiussquare) { puntiA(0)[k] = puntiA(0)[i]; k++; } else { removedpoint = true; } } count = k; } if (!removedpoint) { puntiBtemp(0) = new PointF[] { new PointF(e.X, e.Y) }; add_remove_pt = true; } } } private void Button3_Click(System.Object sender, System.EventArgs e) { count = 0; } //Dim times(1000) As Double //Dim ii As Integer private void ProcessFrame(object sender, EventArgs arg) { frame = captureCV.QueryFrame; grayB = frame.Convert<Emgu.CV.Structure.Gray, byte>(); if (defineCorners) { count = 500; puntiB = grayB.GoodFeaturesToTrack(count, 0.01, 10, 3); grayB.FindCornerSubPix(puntiB, new System.Drawing.Size(10, 10), new System.Drawing.Size(-1, -1), new Emgu.CV.Structure.MCvTermCriteria(20, 0.03)); count = puntiB(0).Length; defineCorners = false; } else if (count > 0) { //Dim start_time As Date = Now // my overridden function with the "count" parameter added Emgu.CV.OpticalFlow.PyrLK(grayA, grayB, pyrBufferA, pyrBufferB, count, puntiA(0), new Size(10, 10), 3, CvTermCriteria(20, 0.03M), flags, puntiB(0), status, errors); flags = Emgu.CV.CvEnum.LKFLOW_TYPE.CV_LKFLOW_PYR_A_READY; //' counts seconds from start_time declaration //Dim stop_time As Date = Now //Dim elapsed_time As TimeSpan = stop_time.Subtract(start_time) //Dim timestamp As Double = elapsed_time.TotalMilliseconds / 1000