private async void btnPlay_Click(object sender, EventArgs e)
{
pausa = false;
if (video == null)
{
Importar();
}
try
{
while (!pausa)
{
Mat mFrame1 = new Mat();
video.Retrieve(mFrame1);
video.Grab();
frame = mFrame1.ToImage <Bgr, byte>();
if (!mFrame1.IsEmpty)
{
pictureOriginal.Image = frame.ToBitmap();
await Task.Delay(1000 / tiempo);
}
else
{
video.Stop();
break;
}
}
}catch (Exception)
{
}
}
void Update()
{
if (!webcam.IsOpened)
{
return;
}
webcam.Grab();
if (Input.GetKey(KeyCode.Mouse0))
{
if (Input.GetKeyDown(KeyCode.Mouse0))
{
orgBoxPos = Input.mousePosition;
}
else
{
endBoxPos = Input.mousePosition;
}
}
if (Input.GetKeyUp(KeyCode.Mouse0))
{
if (endBoxPos != Vector2.zero && orgBoxPos != Vector2.zero)
{
HandleUnitSelection();
}
endBoxPos = orgBoxPos = Vector2.zero;
}
if (colorDetect)
{
}
}
public bool StartStream(string url)
{
///Оборачиваем конструктор класса VideoCapture в задачу, и ждем завершения 5 секунд.
///Это необходимо, т.к. у VideoCapture нет таймаута и если камера не ответила, то приложение зависнет.
var CaptureTask = Task.Factory.StartNew(() => Capture = new VideoCapture(url));
if (!CaptureTask.Wait(new TimeSpan(0, 0, 5)))
{
return(false);
}
///Получаем первый кадр с камеры
Capture.Grab();
///Если удачно записали его в переменную, то продолжаем
if (!Capture.Retrieve(MatFrame, 3))
{
return(false);
}
///Узнаем формат пикселей кадра
System.Windows.Media.PixelFormat pixelFormat = GetPixelFormat(MatFrame);
///Определяем сколько места занимает один кадр
pcount = (uint)(MatFrame.Width * MatFrame.Height * pixelFormat.BitsPerPixel / 8);
///Создаем объект в памяти
source = CreateFileMapping(new IntPtr(-1), IntPtr.Zero, 0x04, 0, pcount, null);
///Получаем ссылку на начальный адрес объекта
map = MapViewOfFile(source, 0xF001F, 0, 0, pcount);
///Инициализируем InteropBitmap используя созданный выше объект в памяти
Frame = Imaging.CreateBitmapSourceFromMemorySection(source, MatFrame.Width, MatFrame.Height, pixelFormat, MatFrame.Width * pixelFormat.BitsPerPixel / 8, 0) as InteropBitmap;
Capture.ImageGrabbed += Capture_ImageGrabbed;
Capture.Start();
return(true);
}
static void Main()
{
VideoCapture cap = new VideoCapture(0);
if (!cap.IsOpened)
{
return;
}
cap.SetCaptureProperty(CapProp.FrameWidth, 1920);
cap.SetCaptureProperty(CapProp.FrameHeight, 1080);
cap.SetCaptureProperty(CapProp.Fps, 30);
Mat frame = new Mat();
long msecCounter = 0;
long frameNumber = 0;
for (;;)
{
if (cap.Grab())
{
msecCounter = (long)cap.GetCaptureProperty(CapProp.PosMsec);
frameNumber = (long)cap.GetCaptureProperty(CapProp.PosFrames);
if (cap.Retrieve(frame))
{
ProcessFrame(frame, msecCounter, frameNumber);
}
}
// TODO: Determine when to quit the processing loop
}
}
/// <summary>
/// Захватывает кадр с камеры, если она активна, и обрабатывает его.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void Camera_ImageGrab(object sender, EventArgs e)
{
if ((Camera != null) && Camera.Grab() && Camera.Retrieve(Frame.Mat))
{
FrameResult fr = Proc.ProcessFrame(Frame.Clone()); //обрабатываем кадр
if (fr.QRLocation != null)
{
lb_qr.Visible = true;
countQR += 1;
lb_qr.Text = ("QR found: " + countQR + "times");
}
if (fr.ArucoLocation != null)
{
lb_aruco.Visible = true;
countAruco += 1;
lb_aruco.Text = ("Aruco found: " + countAruco + "times");
}
// и просто показываем результат
ViewBox.Image = fr.Visual;
this.Text = "Data: " + fr.Commentary;
TiltAngleLbl.Text = double.IsNaN(fr.TiltAngle)
? "------"
: string.Format("Наклон {0:f2} гр", fr.TiltAngle * 180.0 / Math.PI);
}
}
private void backgroundWorker_DoWork(object sender, DoWorkEventArgs e)
{
BackgroundWorker bw = (BackgroundWorker)sender;
while (!backgroundWorker.CancellationPending)
{
//画像取得
capture.Read(frame);
if (!capture.IsOpened())
{
this.backgroundWorker.CancelAsync();
while (this.backgroundWorker.IsBusy)
{
Application.DoEvents();
}
return;
}
else
{
capture.Grab();
}
NativeMethods.videoio_VideoCapture_operatorRightShift_Mat(capture.CvPtr, frame.CvPtr);
bw.ReportProgress(0);
}
}
private void LateUpdate()
{
if (webcam.IsOpened)
{
webcam.Grab();
}
}
private void CaptureFeed(string url, int feedId)
{
// TODO: on the real webcam use https://getakka.net/articles/utilities/scheduler.html
// to send a message itself every 1 sec.
using (var capture = new VideoCapture(url))
{
var fps = (int)capture.Fps;
Console.WriteLine($"Feed {feedId} FPS: {capture.Fps}");
int i = -1;
using (var image = new Mat())
{
while (true)
{
capture.Grab();
i++;
if (i % fps != 0)
{
continue;
}
capture.Read(image);
if (image.Empty())
{
Console.WriteLine($"Feed {feedId}: end of video");
break;
}
Console.WriteLine($"Feed {feedId}: sending frame {i}");
FrameProcessor.Tell(new ProcessFrame {
Frame = image, FrameNo = i, Id = feedId
});
}
}
}
}
private bool setupCamera()
{
Camera = new VideoCapture();
Camera.SetCaptureProperty(Emgu.CV.CvEnum.CapProp.FrameWidth,
parameters.cameraResolution.Width);
Camera.SetCaptureProperty(Emgu.CV.CvEnum.CapProp.FrameHeight,
parameters.cameraResolution.Height);
Mat temp = new Mat();
Camera.Read(temp);
if (!Camera.Grab())
{
MessageBox.Show("Unable to open camera!", "Error",
MessageBoxButtons.OK, MessageBoxIcon.Error);
return(false);
}
if (temp.Size != parameters.cameraResolution)
{
MessageBox.Show("Camera resolution " + parameters.cameraResolution +
" doesn't fit given resolution: " + temp.Size, "Warning",
MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
FrameSize = temp.Size;
return(true);
}
void Update()
{
if (capture.IsOpened)
{
capture.Grab();
}
}
void Update()
{
if (videoCapture.IsOpened)
{
videoCapture.Grab();
}
}
void generateVideo(string path, string filename)
{
int i = -1;
var fcc = VideoWriter.Fourcc('m', 'p', '4', 'v');
Stopwatch watch = new Stopwatch();
watch.Start();
using (var video = new VideoCapture(path))
using (var writer = new VideoWriter(@$ "{filename}.mp4", fcc, video.GetCaptureProperty(Emgu.CV.CvEnum.CapProp.Fps) / FRAMES,
new Size((int)video.GetCaptureProperty(Emgu.CV.CvEnum.CapProp.FrameWidth), (int)video.GetCaptureProperty(Emgu.CV.CvEnum.CapProp.FrameHeight)), true))
using (var img = new Mat()) {
while (video.Grab())
{
if (++i % FRAMES == 0)
{
video.Read(img);
Bitmap bmp = new Bitmap(convertIntoAscii(img.ToBitmap()), (int)video.GetCaptureProperty(Emgu.CV.CvEnum.CapProp.FrameWidth), (int)video.GetCaptureProperty(Emgu.CV.CvEnum.CapProp.FrameHeight));
Image <Bgr, byte> frame = bmp.ToImage <Bgr, byte>();
writer.Write(frame.Mat);
}
}
}
watch.Stop();
Console.WriteLine($"\u001b[36mTime: {watch.ElapsedMilliseconds/60} sec.\u001b[0m");
}
private List <InputFileModel> GetInputFromStereoCamera(VideoCapture LeftCamera, VideoCapture RightCamera, int countInputFile = 0)
{
LeftCamera.Grab();
RightCamera.Grab();
Mat LeftImage = new Mat();
Mat RightImage = new Mat();
LeftCamera.Retrieve(LeftImage);
RightCamera.Retrieve(RightImage);
LeftImage.Save(Path.Combine($@"{tempLeftStackDirectory}", $"Left_{countInputFile}.JPG"));
RightImage.Save(Path.Combine($@"{tempRightStackDirectory}", $"Right_{countInputFile}.JPG"));
var inputFileLeft = new InputFileModel(Path.Combine($@"{tempLeftStackDirectory}", $"Left_{countInputFile}.JPG"));
var imageList = _winForm.ImageList[(int)EListViewGroup.LeftCameraStack];
var listViewer = _winForm.ListViews[(int)EListViewGroup.LeftCameraStack];
_fileManager.AddInputFileToList(inputFileLeft, _fileManager.listViewerModel.ListOfListInputFolder[(int)EListViewGroup.LeftCameraStack], imageList, listViewer);
var inputFileRight = new InputFileModel(Path.Combine($@"{tempRightStackDirectory}", $"Right_{countInputFile}.JPG"));
imageList = _winForm.ImageList[(int)EListViewGroup.RightCameraStack];
listViewer = _winForm.ListViews[(int)EListViewGroup.RightCameraStack];
_fileManager.AddInputFileToList(inputFileLeft, _fileManager.listViewerModel.ListOfListInputFolder[(int)EListViewGroup.RightCameraStack], imageList, listViewer);
var returnList = new List <InputFileModel>();
returnList.Add(inputFileLeft);
returnList.Add(inputFileRight);
return(returnList);
}
/// <summary>
///
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void ScanBackgroundWorker_DoWork(object sender, DoWorkEventArgs e)
{
BackgroundWorker bw = (BackgroundWorker)sender;
while (!scanBackgroundWorker.CancellationPending)
{
// バーコード読み取り
ZXing.BarcodeReader reader = new ZXing.BarcodeReader();
reader.AutoRotate = true;
reader.Options.TryHarder = true;
//画像取得
capture.Grab();
OpenCvSharp.NativeMethods.videoio_VideoCapture_operatorRightShift_Mat(capture.CvPtr, frame.CvPtr);
// Windows FormsではBitmapを渡す
ZXing.Result result = reader.Decode(BitmapConverter.ToBitmap(frame.CvtColor(ColorConversionCodes.BGR2GRAY)));
if (result != null)
{
this.Invoke(new Action <ZXing.Result>(this.UpdateBarcodeFormatText), result);
}
bw.ReportProgress(0);
}
}
// Update is called once per frame
void Update()
{
//setup HSV Color
seuilbasHsv = new Hsv(seuilBas.x, seuilBas.y, seuilBas.z);
seuilhautHsv = new Hsv(seuilHaut.x, seuilHaut.y, seuilHaut.z);
seuilbasHsvBleu = new Hsv(seuilBasBleu.x, seuilBasBleu.y, seuilBasBleu.z);
seuilhautHsvBleu = new Hsv(seuilBasBleu.x, seuilBasBleu.y, seuilBasBleu.z);
fluxVideo.Grab();
//converti
Image <Gray, byte> imageSeuilLimit = Convert(seuilBas, seuilHaut);
Image <Gray, byte> imageSeuilLimitBleu = Convert(seuilBasBleu, seuilHautBleu);
//dilate pour affiner les trais
var strutElement = CvInvoke.GetStructuringElement(ElementShape.Rectangle, new Size(5, 5), new Point(2, 2));
CvInvoke.Dilate(imageSeuilLimit, imageSeuilLimit, strutElement, new Point(2, 2), 1, BorderType.Default, new MCvScalar());
var strutElementBlue = CvInvoke.GetStructuringElement(ElementShape.Rectangle, new Size(5, 5), new Point(2, 2));
CvInvoke.Dilate(imageSeuilLimitBleu, imageSeuilLimitBleu, strutElementBlue, new Point(2, 2), 1, BorderType.Default, new MCvScalar());
//Recognition building
buildings = DrawRectangle(imageSeuilLimitBleu, "Building");
ListTriangles = DrawTriangle(imageSeuilLimit, "triangle");
CvInvoke.Imshow("Image seuile POV", imageSeuilLimit.Mat);
CvInvoke.Imshow("Image seuile Bleu", imageSeuilLimitBleu.Mat);
CvInvoke.Imshow("Image", imageMat);
CvInvoke.WaitKey(24);
}
private static void VideoCaptureSample()
{
var cap = new VideoCapture(0);
if (!cap.IsOpened())
{
Console.WriteLine("Can't use camera.");
return;
}
var frame = new Mat();
cap.Grab();
NativeMethods.videoio_VideoCapture_operatorRightShift_Mat(cap.CvPtr, frame.CvPtr);
Window.ShowImages(frame);
using (var window = new Window("window"))
{
while (true)
{
cap.Read(frame);
window.ShowImage(frame);
int key = Cv2.WaitKey(50);
if (key == 'b')
break;
}
}
}
// Update is called once per frame
void Update()
{
if (webCam.IsOpened)
{
webCam.Grab();
}
}
private void FaceDetection()
{
if (webcam.IsOpened)
{
webcam.Grab();
}
}
// -- cam 1 -- //
public void kam_in()
{
camera_in = new VideoCapture(0);
//camera_in = new Emgu.CV.VideoCapture("rtsp://*****:*****@192.168.8.113/live/stream");
camera_in.ImageGrabbed += camera_process;
camera_in.Grab();
camera_in.Start();
}
void Update()
{
if (webcam.IsOpened)
{
// update the image from the webcam
webcam.Grab();
}
}
void Update()
{
if (!_webcam.IsOpened)
{
return;
}
_webcam.Grab();
}
private void OnLoaded(object sender, RoutedEventArgs e)
{
double screenX = Screen.PrimaryScreen.WorkingArea.Width / 2;
double screenY = Screen.PrimaryScreen.WorkingArea.Height / 2;
double offsetY = Screen.PrimaryScreen.Bounds.Y;
Left = Math.Max((screenX - ActualWidth) / 2, 0);
Top = 40;
resultWindow = new CamerPreviewWindow();
resultWindow.Show();
resultWindow.Left = Left;
resultWindow.Top = Top + ActualHeight + 10;
detector = new CascadeDetector(FACE_FILE, EYE_FILE);
cameraFrame = new Mat();
grayFrame = new Mat();
try
{
capture = new VideoCapture();
if (App.VideoPath != null)
{
captureOutput = new VideoWriter(
App.VideoPath,
App.FrameRate,
new System.Drawing.Size((int)capture.GetCaptureProperty(Emgu.CV.CvEnum.CapProp.FrameWidth), (int)capture.GetCaptureProperty(Emgu.CV.CvEnum.CapProp.FrameHeight)),
true);
}
capture.FlipHorizontal = true;
capture.ImageGrabbed += OnFrameCaptured;
capture.Grab();
}
catch (Exception excpt)
{
System.Windows.MessageBox.Show(excpt.Message);
}
canv_left.DataBuffer = leftData;
canv_right.DataBuffer = rightData;
canv_lt.DataBuffer = leftTopData;
canv_rt.DataBuffer = rightTopData;
canv_lt_dist.DataBuffer = leftDistData;
canv_rt_dist.DataBuffer = rightDistData;
btn_start.Click += (_sender, _e) =>
{
string content = btn_start.Content as string;
if (content == "开始")
{
btn_start.IsEnabled = false;
isStarted = true;
startTime = DateTime.Now;
btn_start.Content = "停止";
}
};
}
public void VideoDrawWork_DoWork(object sender, DoWorkEventArgs e)
{
BackgroundWorker bw = (BackgroundWorker)sender;
while (!videoDrawWorker.CancellationPending)
{
//画像取得
try
{
capture.Grab();
NativeMethods.videoio_VideoCapture_operatorRightShift_Mat(capture.CvPtr, frame.CvPtr);
bw.ReportProgress(0);
}
catch
{
resultTextBlock.Text = "画像取得に失敗しました";
}
}
}
// Update is called once per frame
void Update()
{
fluxVideo.Grab();
image = imageMat.ToImage <Bgra, byte>();
//converti
Image <Gray, byte> imageSeuilLimit = Convert(seuilBas, seuilhaut);
Image <Gray, byte> imageSeuilBlue = Convert(seuilBasBlue, seuilhautBlue);
//resize
CvInvoke.Resize(image, image, new Size(1280, 720));
CvInvoke.Resize(imageSeuilBlue, imageSeuilBlue, new Size(1280, 720));
//dilate pour affiner les trais
var strutElement = CvInvoke.GetStructuringElement(ElementShape.Rectangle, new Size(5, 5), new Point(2, 2));
CvInvoke.Dilate(imageSeuilLimit, imageSeuilLimit, strutElement, new Point(2, 2), 1, BorderType.Default, new MCvScalar());
if (Input.GetKeyDown(KeyCode.S))
{
//extrude le background pour avoir que les platformes
ExtrudeBackGround(image, imageSeuilBlue);
//creation du sprite
gameObject.GetComponent <SpriteRenderer>().sprite = PNG2Sprite.LoadNewSprite("./Assets/test.png", 100.0f);
var pc = gameObject.GetComponent <PolygonCollider2D>();
Destroy(pc);
gameObject.AddComponent <PolygonCollider2D>();
isDrawing = true;
}
//La texture
if (Input.GetKeyDown(KeyCode.A))
{
Texture2D tex = new Texture2D(fluxVideo.Width, fluxVideo.Height, TextureFormat.BGRA32, false);
Mat hh = new Mat();
CvInvoke.CvtColor(imageSeuilBlue, hh, ColorConversion.Gray2Bgra);
//tex.LoadImage(hh.ToImage<Bgra, byte>().Bytes);
tex.LoadRawTextureData(hh.ToImage <Bgra, byte>().Bytes);
tex.Apply();
//Level.sprite = Sprite.Create(tex, new Rect(0.0f, 0.0f, tex.width, tex.height), new Vector2(0.5f, 0.5f), 1.0f);
}
//webcam non traité
Texture2D tex2 = new Texture2D(fluxVideo.Width, fluxVideo.Height, TextureFormat.BGRA32, false);
tex2.LoadRawTextureData(imageMat.ToImage <Bgra, byte>().Bytes);
tex2.Apply();
UiCamera.sprite = Sprite.Create(tex2, new Rect(0.0f, 0.0f, tex2.width, tex2.height), new Vector2(0.5f, 0.5f), 1.0f);
//CvInvoke.Flip(imageSeuilBlue, imageSeuilBlue, FlipType.Horizontal);
CvInvoke.Imshow("image de base", imageSeuilBlue);
CvInvoke.WaitKey(24);
}
// Update is called once per frame
void Update()
{
if (webCam.IsOpened)
{
webCam.Grab();
}
else
{
return;
}
}
private void Update()
{
if (webcam.IsOpened)
{
webcam.Grab();
}
if (webcamFrame.IsEmpty)
{
return;
}
}
void Start()
{
video = new VideoCapture(0);
classifier = new CascadeClassifier(fileName: path);
if (video.IsOpened)
{
video.Grab();
video.ImageGrabbed += new EventHandler(handleWebcamQueryFrame);
}
}
public void GrabAndRetrieveImageSequence()
{
using var capture = new VideoCapture("_data/image/blob/shapes%d.png");
using var image1 = new Mat("_data/image/blob/shapes1.png", ImreadModes.Color);
using var image2 = new Mat("_data/image/blob/shapes2.png", ImreadModes.Color);
using var image3 = new Mat("_data/image/blob/shapes3.png", ImreadModes.Color);
Assert.True(capture.IsOpened());
Assert.Equal("CV_IMAGES", capture.GetBackendName());
Assert.Equal(3, capture.FrameCount);
using var frame1 = new Mat();
using var frame2 = new Mat();
using var frame3 = new Mat();
using var frame4 = new Mat();
Assert.True(capture.Grab());
Assert.True(capture.Retrieve(frame1));
Assert.True(capture.Grab());
Assert.True(capture.Retrieve(frame2));
Assert.True(capture.Grab());
Assert.True(capture.Retrieve(frame3));
Assert.False(capture.Grab());
Assert.False(capture.Retrieve(frame4));
Assert.False(frame1.Empty());
Assert.False(frame2.Empty());
Assert.False(frame3.Empty());
Assert.True(frame4.Empty());
Cv2.CvtColor(frame1, frame1, ColorConversionCodes.BGRA2BGR);
Cv2.CvtColor(frame2, frame2, ColorConversionCodes.BGRA2BGR);
Cv2.CvtColor(frame3, frame3, ColorConversionCodes.BGRA2BGR);
ImageEquals(image1, frame1);
ImageEquals(image2, frame2);
ImageEquals(image3, frame3);
if (Debugger.IsAttached)
{
Window.ShowImages(frame1, frame2, frame3, frame4);
}
}
public Mat getNextFrame()
{
// var frame = inputVideo.QueryFrame();
var nextFrame = inputVideo.Grab();
if (!nextFrame)
{
return(null);
}
var img = new Mat();
inputVideo.Retrieve(img);
return(img);
}
public async Task Can_capture_camera()
{
using var capture = new VideoCapture(captureApi: VideoCapture.API.DShow);
capture.ImageGrabbed += CaptureOnImageGrabbed;
capture.Start();
for (int i = 0; i < 10; i++)
{
capture.Grab();
await Task.Delay(1000);
}
}
private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
{
BackgroundWorker bw = (BackgroundWorker)sender;
while (!backgroundWorker1.CancellationPending)
{
_video.Grab();
NativeMethods.videoio_VideoCapture_operatorRightShift_Mat(_video.CvPtr, _frame.CvPtr);
bw.ReportProgress(0);
}
}
