public BgSubtractorMOG()
{
using (CvCapture capture = new CvCapture(Const.MovieHara)) // specify your movie file
using (BackgroundSubtractorMOG mog = new BackgroundSubtractorMOG())
using (CvWindow windowSrc = new CvWindow("src"))
using (CvWindow windowDst = new CvWindow("dst"))
{
IplImage imgFrame;
using (Mat imgFg = new Mat())
while ((imgFrame = capture.QueryFrame()) != null)
{
mog.Run(new Mat(imgFrame, false), imgFg, 0.01);
windowSrc.Image = imgFrame;
windowDst.Image = imgFg.ToIplImage();
Cv.WaitKey(50);
}
}
}
public BgSubtractorMOG()
{
using (CvCapture capture = new CvCapture(Const.MovieHara)) // specify your movie file
using (BackgroundSubtractorMOG mog = new BackgroundSubtractorMOG())
using (CvWindow windowSrc = new CvWindow("src"))
using (CvWindow windowDst = new CvWindow("dst"))
{
IplImage imgFrame;
using (Mat imgFg = new Mat())
while ((imgFrame = capture.QueryFrame()) != null)
{
mog.Run(new Mat(imgFrame, false), imgFg, 0.01);
windowSrc.Image = imgFrame;
windowDst.Image = imgFg.ToIplImage();
Cv.WaitKey(50);
}
}
}
public void Run()
{
using (var capture = new VideoCapture(FilePath.Bach))
using (var mog = new BackgroundSubtractorMOG())
using (var windowSrc = new Window("src"))
using (var windowDst = new Window("dst"))
{
var frame = new Mat();
var fg = new Mat();
while (true)
{
capture.Read(frame);
if(frame.Empty())
break;
mog.Run(frame, fg, 0.01);
windowSrc.Image = frame;
windowDst.Image = fg;
Cv2.WaitKey(50);
}
}
}
public override void RunTest()
{
using var capture = new VideoCapture(MoviePath.Bach);
using var mog = BackgroundSubtractorMOG.Create();
using var windowSrc = new Window("src");
using var windowDst = new Window("dst");
using var frame = new Mat();
using var fg = new Mat();
while (true)
{
capture.Read(frame);
if (frame.Empty())
{
break;
}
mog.Apply(frame, fg, 0.01);
windowSrc.Image = frame;
windowDst.Image = fg;
Cv2.WaitKey(50);
}
}
public void Run()
{
using (var capture = new VideoCapture(FilePath.Bach))
using (var mog = new BackgroundSubtractorMOG())
using (var windowSrc = new Window("src"))
using (var windowDst = new Window("dst"))
{
var frame = new Mat();
var fg = new Mat();
while (true)
{
capture.Read(frame);
if (frame.Empty())
{
break;
}
mog.Run(frame, fg, 0.01);
windowSrc.Image = frame;
windowDst.Image = fg;
Cv2.WaitKey(50);
}
}
}
public void AnalyzeVideo(string file, bool isDebug)
{
var dateString = "1900-01-01 12:00:00";
var fileName = Path.GetFileNameWithoutExtension(file);
if (fileName.Contains("_"))
{
dateString = fileName.Split("_")[0].Insert(4, "-").Insert(7, "-").Insert(10, " ").Insert(13, ":").Insert(16, ":");
}
var currentFrame = 1;
var startDate = DateTime.Parse(dateString);
var stopwatch = Stopwatch.StartNew();
var frameCount = 0;
var frame = new Mat();
var realTimeSpeed = new RealTimeSpeed(isDebug);
var bgSub = BackgroundSubtractorMOG.Create(200, 100);
var carRecords = new List <CarTracker>();
var entries = new List <Entry>();
using (var videoCapture = VideoCapture.FromFile(file))
{
frameCount = videoCapture.FrameCount;
while (videoCapture.IsOpened())
{
frame = videoCapture.RetrieveMat();
if (frame.Cols == 0)
{
break;
}
var carBlobs = DetectCars(frame, bgSub, carRecords.HasPossibleOverlaps(), isDebug);
var blobsWithTrackers = MatchBlobsToTrackers(carBlobs, carRecords);
carRecords.ForEach(c => c.IsUpdated = false);
foreach (var blob in blobsWithTrackers)
{
var closestTracker = carRecords.Where(c => c.Id == blob.Value).FirstOrDefault();
if (closestTracker == null)
{
closestTracker = new CarTracker
{
Id = NextTrackerId++,
Car = new Entry
{
Direction = blob.Key.X < Config.LeftStart + 75 ? "R" : "L",
DateAdded = startDate.AddSeconds(currentFrame / 30)
},
Rect = blob.Key,
IsUpdated = true
};
carRecords.Add(closestTracker);
}
else
{
closestTracker.IsUpdated = true;
closestTracker.LastUpdated = currentFrame;
closestTracker.Rect = blob.Key;
if (isDebug)
{
Cv2.Rectangle(frame, blob.Key, Scalar.Purple, 8);
}
}
closestTracker.ValidateTracker(frame.Height);
}
carRecords.ForEach(c => c.UpdateEvents(currentFrame, frame, Config));
//remove any trackers that have completed but are invalid OR they haven't been updated in 15 frames
var badRecords = carRecords.Where(c => (!c.IsUpdated && c.Car.Speed > 0 && c.IsInvalid) || (!c.IsUpdated && currentFrame - c.LastUpdated > 15)).ToList();
foreach (var badRecord in badRecords)
{
carRecords.Remove(badRecord);
}
var completedRecords = carRecords.Where(c => !c.IsUpdated && c.Car.Speed > 0).ToList();
foreach (var completed in completedRecords)
{
entries.Add(completed.Car);
carRecords.Remove(completed);
realTimeSpeed.StopFrame = 60;
realTimeSpeed.Speed = (int)Math.Floor(completed.Car.Speed);
}
//display progress output
var fps = Math.Round(currentFrame / stopwatch.Elapsed.TotalSeconds, 2);
var percentDone = (currentFrame / (double)frameCount) * 100;
var timeRemaining = TimeSpan.FromSeconds((frameCount - currentFrame) / fps);
if (isDebug)
{
DrawStartEndLines(frame);
DrawTime(startDate, currentFrame, frame);
realTimeSpeed.DrawSpeeds(frame);
Cv2.ImShow("Frame", frame);
Cv2.WaitKey(1);
}
Console.SetCursorPosition(0, Console.CursorTop);
Console.Write($"\r{currentFrame} of {frameCount} - Time: {startDate.AddSeconds(currentFrame / 30).ToString("HH:mm:ss")} - FPS: {fps.ToString("N2")} - {Math.Round(percentDone, 2).ToString("N2")}% - Remaining: {timeRemaining.ToString(@"hh\:mm\:ss")} - Cars: {entries.Count} ");
currentFrame++;
}
}
Console.WriteLine("");
Console.WriteLine($"{entries.Count} cars in {stopwatch.Elapsed.ToString(@"hh\:mm\:ss")}");
//save all entries to the DB and their photos to disk if debug is false
if (!isDebug)
{
foreach (var entry in entries)
{
Console.WriteLine($"{entry.DateAdded.ToString("hh:mm:ss")}: {entry.Direction} - {entry.Speed:N2}");
Database.EntryInsert(entry);
if (!entry.PhotoUpdated)
{
Database.LogInsert(new Log
{
DateAdded = DateTime.Now,
Message = $"Photo for #{entry.Id} has not been updated!",
StackTrace = ""
});
}
//save the picture if it exists
if (entry.Picture != null)
{
using (var fileStream = new FileStream(Path.Combine(Config.PhotoFolder, $"{entry.Id}.jpg"), FileMode.Create))
{
fileStream.Write(entry.Picture, 0, entry.Picture.Length);
}
}
}
}
return;
}
public void Run()
{
// Opens MP4 file (ffmpeg is probably needed)
//var capture = new VideoCapture(FilePath.Movie.Bach);
var capture = new VideoCapture("rtmp://rtmp.open.ys7.com/openlive/61e96da9f12a4d058f4737d02c42998d");
#region MyRegion
//int sleepTime = (int)Math.Round(1000 / capture.Fps);
//using (var window = new Window("capture"))
//{
// // Frame image buffer
// Mat image = new Mat();
// // When the movie playback reaches end, Mat.data becomes NULL.
// while (true)
// {
// capture.Read(image); // same as cvQueryFrame
// if (image.Empty())
// break;
// window.ShowImage(image);
// Cv2.WaitKey(sleepTime);
// }
//}
#endregion
Rect roi = new Rect();
Mat kernel1 = Cv2.GetStructuringElement(0, new Size(3, 3), new Point(-1, -1));
Mat kernel2 = Cv2.GetStructuringElement(0, new Size(5, 5), new Point(-1, -1));
using (var mog = BackgroundSubtractorMOG.Create())
using (var windowSrc = new Window("src"))
//using (var windowinrange = new Window("inrange"))
using (var windowDst = new Window("dst"))
{
var frame = new Mat();
//var inrange = new Mat();
var fg = new Mat();
while (true)
{
capture.Read(frame);
if (frame.Empty())
{
break;
}
//Cv2.InRange(frame, new Scalar(100, 100, 0), new Scalar(255, 255, 100), inrange);
mog.Apply(frame, fg, 0.01);
// 开操作
//Cv2.MorphologyEx(fg, fg, OpenCvSharp.MorphTypes.Open, kernel1, new Point(-1, -1), 1);
//// 膨胀
//Cv2.Dilate(fg, fg, kernel2,new Point(-1, -1), 4);
// 轮廓发现与位置标定
processFrame(ref fg, ref roi);
//画矩形
Cv2.Rectangle(frame, roi, new Scalar(0, 255, 0));
Cv2.Rectangle(fg, roi, new Scalar(0, 255, 0));
windowSrc.Image = frame;
//windowinrange.Image = inrange;
windowDst.Image = fg;
Cv2.WaitKey(50);
}
}
}
