/// <summary> /// 基于OpenCv捕获视频流 /// </summary> /// <param name="url"></param> /// <param name="action"></param> public void OpenCvCaptureVideoStream(string url, Action <OpenCvSharp.Mat> action) { using (OpenCvSharp.VideoCapture capture = new OpenCvSharp.VideoCapture(url)) { //FourCC fourCC = FourCC.FromFourChars('m', 'p', '4', 'v'); if (!capture.IsOpened()) { return; } //double fps = capture.Get(VideoCaptureProperties.Fps); //double width = capture.Get(VideoCaptureProperties.FrameWidth); //double height = capture.Get(VideoCaptureProperties.FrameHeight); //OpenCvSharp.Size size = new OpenCvSharp.Size(width, height); using OpenCvSharp.Mat frame = new OpenCvSharp.Mat(); while (_stopPlay == false) { if (capture.Read(frame)) { //win?.ShowImage(frame); action?.Invoke(frame); } } frame.Dispose(); capture.Dispose(); } }
public MainWindow() { InitializeComponent(); string filename; var fileDlg = new OpenFileDialog(); if (fileDlg.ShowDialog() == true) { filename = fileDlg.FileName; } else { MessageBox.Show("File is not selected!"); return; } video = new OpenCvSharp.VideoCapture(filename); if (!video.IsOpened()) { MessageBox.Show("Video is not valid!"); return; } renderer = new EquirectToRect(new GLControl(), new System.Drawing.Size(1400, 900), 100 * (float)Math.PI / 180); renderer.Viewer.Paint += (sender, e) => { renderer.Render(currentFrame); fps++; }; renderer.Viewer.Dock = System.Windows.Forms.DockStyle.Fill; viewer.Child = renderer.Viewer; DispatcherTimer renderingTimer = new DispatcherTimer(); renderingTimer.Interval = TimeSpan.FromMilliseconds(/*1000 / video.Fps*/ 1); renderingTimer.Tick += (sender, e) => { if (DateTime.Now.Subtract(lastMeasureTime) > TimeSpan.FromSeconds(1)) { Title = fps + " fps"; fps = 0; lastMeasureTime = DateTime.Now; } video.Read(currentFrame); if (currentFrame.Empty()) { return; } renderer.Viewer.Invalidate(); }; renderingTimer.Start(); }
public MainWindow() { InitializeComponent(); headset = new FVRHeadset(EFVR_ClientCapabilities.Gaze | EFVR_ClientCapabilities.Orientation); headset.IsHardwareConnected(out bool isConnected); Debug.Assert(isConnected, "Hardware is not connected!"); headset.IsHardwareReady(out bool isReady); Debug.Assert(isReady, "Hardware capabilities are not ready!"); OpenFileDialog dialog = new OpenFileDialog(); if (dialog.ShowDialog() == true) { filename = dialog.FileName; } else { MessageBox.Show("File is not selected!"); return; } video = new OpenCvSharp.VideoCapture(filename); if (!video.IsOpened()) { MessageBox.Show("Video is not valid!"); return; } video_width = (int)video.Get(OpenCvSharp.CaptureProperty.FrameWidth); video_height = (int)video.Get(OpenCvSharp.CaptureProperty.FrameHeight); OpenCvSharp.Cv2.NamedWindow("coord", OpenCvSharp.WindowMode.Normal); OpenCvSharp.Cv2.ResizeWindow("coord", 1600, 900); renderer = new EquirectToRect(new GLControl(), new System.Drawing.Size(1400, 900), 100 * (float)Math.PI / 180); renderer.Viewer.Paint += (sender, e) => { renderer.Render(currentFrame); }; renderer.Viewer.Dock = System.Windows.Forms.DockStyle.Fill; viewer.Child = renderer.Viewer; renderingTimer = new DispatcherTimer(); renderingTimer.Interval = TimeSpan.FromMilliseconds(1); renderingTimer.Tick += (s, e) => { video.Read(currentFrame); if (currentFrame.Empty()) { video.Set(OpenCvSharp.CaptureProperty.PosFrames, 0); return; } headset.GetHMDPose(out SFVR_Pose pose); using (OpenCvSharp.Mat coordmap = currentFrame.Clone()) { SFVR_Vec3 direction = pose.orientation * SFVR_Vec3.Forward; GetCoord(direction, video_width, video_height, out int x, out int y); OpenCvSharp.Cv2.Circle(coordmap, new OpenCvSharp.Point(x, y), 50, new OpenCvSharp.Scalar(0, 0, 255), -1); OpenCvSharp.Cv2.ImShow("coord", coordmap); OpenCvSharp.Cv2.WaitKey(1); } SFVR_Vec3 eulerAngle = pose.orientation.EulerAngles; renderer.Pitch = -MathHelper.DegreesToRadians(eulerAngle.x); renderer.Yaw = MathHelper.DegreesToRadians(eulerAngle.y); renderer.Roll = MathHelper.DegreesToRadians(eulerAngle.z); renderer.Viewer.Invalidate(); }; renderingTimer.Start(); }
private void button1_Click(object sender, EventArgs e) { DialogResult res = openFileDialog1.ShowDialog(); if (res == DialogResult.OK) { string ext = System.IO.Path.GetExtension(openFileDialog1.FileName); if (ext.ToLower() == ".bmp" || ext.ToLower() == ".jpg" || ext.ToLower() == ".jpeg" || ext.ToLower() == ".png") { pictureBox1.Image = CreateImage(openFileDialog1.FileName); } if (ext.ToLower() == ".avi" || ext.ToLower() == ".mp4") { System.IO.Directory.SetCurrentDirectory(apppath); System.IO.DirectoryInfo target = new System.IO.DirectoryInfo(@"main\LR\calendar"); foreach (System.IO.FileInfo file in target.GetFiles()) { file.Delete(); } int image_num = 1; video = true; OpenCvSharp.VideoCapture vcap = new OpenCvSharp.VideoCapture(openFileDialog1.FileName); while (vcap.IsOpened()) { if (stopping) { break; } OpenCvSharp.Mat mat = new OpenCvSharp.Mat(); if (vcap.Read(mat)) { if (pictureBox1.Image != null) { pictureBox1.Image.Dispose();//Memory release } if (mat.IsContinuous()) { pictureBox1.Image = OpenCvSharp.Extensions.BitmapConverter.ToBitmap(mat); //OpenCvSharp.Cv2.Resize(mat, mat, OpenCvSharp.Size(), 0, 0); string filename = string.Format(@"main\LR\calendar\{0:D4}.png", image_num); //pictureBox1.Image.Save(filename, System.Drawing.Imaging.ImageFormat.Png); OpenCvSharp.Cv2.ImWrite(filename, mat, (int[])null); image_num++; //if (image_num > 10) break; } else { break; } Application.DoEvents(); // 非推奨 } else { break; } System.Threading.Thread.Sleep((int)(1000 / vcap.Fps)); mat.Dispose();//Memory release } Fps = vcap.Fps; vcap.Dispose();//Memory release stopping = false; pictureBox1.Image = CreateImage(@"main\LR\calendar\0001.png"); } } }
byte[] CamCapture() { mat = new OpenCvSharp.Mat(); cap.Read(mat); return(mat.ToBytes()); }
private void button1_Click(object sender, EventArgs e) { folder = ""; DialogResult res = openFileDialog1.ShowDialog(); if (res == DialogResult.OK) { label1.Text = "Image is loading"; label1.Refresh(); string ext = System.IO.Path.GetExtension(openFileDialog1.FileName); if (ext.ToLower() == ".bmp" || ext.ToLower() == ".jpg" || ext.ToLower() == ".jpeg" || ext.ToLower() == ".png") { pictureBox1.Image = CreateImage(openFileDialog1.FileName); } if (ext.ToLower() == ".avi" || ext.ToLower() == ".mp4") { System.IO.Directory.SetCurrentDirectory(apppath); System.IO.DirectoryInfo target = new System.IO.DirectoryInfo(@"main\tecoGAN\LR\calendar"); foreach (System.IO.FileInfo file in target.GetFiles()) { file.Delete(); } int image_num = 1; video = true; OpenCvSharp.VideoCapture vcap = new OpenCvSharp.VideoCapture(openFileDialog1.FileName); while (vcap.IsOpened()) { if (stopping) { break; } OpenCvSharp.Mat mat = new OpenCvSharp.Mat(); if (image_num % 9 == 0) { label1.Text = ""; label1.Refresh(); } else { label1.Text = "Image is loading"; label1.Refresh(); } if (vcap.Read(mat)) { if (pictureBox1.Image != null) { pictureBox1.Image.Dispose();//Memory release } if (mat.IsContinuous()) { pictureBox1.Image = OpenCvSharp.Extensions.BitmapConverter.ToBitmap(mat); { //pictureBox1.SizeMode = PictureBoxSizeMode.AutoSize; Bitmap bmp = new Bitmap( pictureBox1.Image, pictureBox1.Image.Width * 4, pictureBox1.Image.Height * 4); pictureBox1.Image = bmp; } if (!checkBox1.Checked) { OpenCvSharp.Cv2.Resize(mat, mat, new OpenCvSharp.Size((int)((float)mat.Width * (float)numericUpDown1.Value), (int)((float)mat.Height * (float)numericUpDown1.Value)), 0, 0); } else { OpenCvSharp.Cv2.Resize(mat, mat, new OpenCvSharp.Size((int)(0.5f + (float)mat.Width / (float)numericUpDown1.Value), (int)(0.5f + (float)mat.Height / (float)numericUpDown1.Value)), 0, 0); } string filename = string.Format(@"main\tecoGAN\LR\calendar\{0:D4}.png", image_num); //pictureBox1.Image.Save(filename, System.Drawing.Imaging.ImageFormat.Png); OpenCvSharp.Cv2.ImWrite(filename, mat, (int[])null); image_num++; //if (image_num > 10) break; } else { break; } Application.DoEvents(); // 非推奨 } else { break; } System.Threading.Thread.Sleep((int)(1000 / vcap.Fps)); mat.Dispose();//Memory release } Fps = vcap.Fps; vcap.Dispose();//Memory release stopping = false; pictureBox1.Image = CreateImage(@"main\tecoGAN\LR\calendar\0001.png"); } label1.Text = ""; label1.Refresh(); MessageBox.Show("finished"); } }