static int Main(string[] args)
{
// print usage
Console.WriteLine("Usage: dotnet csharp_demo.dll [OPTIONS]");
Console.WriteLine("Examples:");
Console.WriteLine(" To specify license directory (for online license for example): dotnet csharp_demo.dll --license_dir license_dir");
Console.WriteLine("");
// parse arguments
bool error = false;
Options options = new Options();
CommandLine.Parser.Default.ParseArguments <Options>(args)
.WithParsed <Options>(opts => options = opts)
.WithNotParsed <Options>(errs => error = true);
// exit if argument parsign error
if (error)
{
return(1);
}
// print values of arguments
Console.WriteLine("Arguments:");
foreach (var opt in options.GetType().GetProperties())
{
Console.WriteLine("--{0} = {1}", opt.Name, opt.GetValue(options, null));
}
Console.WriteLine();
try
{
OpenCvSharp.Window window = new OpenCvSharp.Window("demo");
// create worker
// (we are expecting run from bin folder)
Worker worker = new Worker(
options.config_dir,
options.capturer_config,
options.license_dir);
// here we trying camera open with opencv
const int desiredFrameWidht = 1280;
const int desiredFrameHeight = 720;
int camera_id = 0;
// VideoCapture camera;
OpenCvSharp.VideoCapture camera = new OpenCvSharp.VideoCapture();
for (; camera_id < 10; ++camera_id)
{
camera.Open(camera_id);
camera.Set(OpenCvSharp.CaptureProperty.FrameWidth, desiredFrameWidht);
camera.Set(OpenCvSharp.CaptureProperty.FrameHeight, desiredFrameHeight);
OpenCvSharp.Mat frame = new OpenCvSharp.Mat();
for (int i = 0; i < 10; i++)
{
frame = camera.RetrieveMat();
}
if (frame.Empty())
{
Console.WriteLine("webcam " + camera_id + " not opened");
camera.Release();
}
else
{
break;
}
}
for (;;)
{
OpenCvSharp.Mat frame;
//camera.Grab();
frame = camera.RetrieveMat();
if (frame.Empty())
{
break;
}
// give a frame to the worker
worker.work(frame);
if (27 == (char)OpenCvSharp.Cv2.WaitKey(10))
{
camera.Release();
break;
}
}
// force free resources
// otherwise licence error may occur
// when create sdk object in next time
worker.dispose();
}
catch (Exception e)
{
Console.WriteLine("! exception catched: '" + e + "' ... exiting");
return(1);
}
Console.WriteLine("close program");
return(0);
}
static void Main(string[] args)
{
var wb = OpenCvSharp.XPhoto.SimpleWB.Create();
wb.P = 0.2f;
wb.OutputMin = 8.0f;
var decodedFramesBlock = new TransformBlock <OpenCvSharp.Mat, OpenCvSharp.Mat>(
mat =>
{
return(Task.Run(() => { wb.BalanceWhite(mat, mat); return mat; }));
},
new ExecutionDataflowBlockOptions
{
BoundedCapacity = 10,
MaxDegreeOfParallelism = 10,
EnsureOrdered = true,
}
);
// var inputVideo = new OpenCvSharp.VideoCapture("2017_0928_105336_023.MOV");
var inputVideo = new OpenCvSharp.VideoCapture("YI004801.mp4");
var outputVideo = new OpenCvSharp.VideoWriter("out_lina.mp4", "avc1", inputVideo.Fps, new OpenCvSharp.Size(inputVideo.FrameWidth, inputVideo.FrameHeight));
ConcurrentQueue <OpenCvSharp.Mat> decodedFramesQueue = new ConcurrentQueue <OpenCvSharp.Mat>();
// decoder
Task decodeTask = Task.Factory.StartNew(() =>
{
while (true)
{
var mat = inputVideo.RetrieveMat();
if (mat.Height == 0)
{
Console.WriteLine("DECODED");
decodedFramesBlock.Complete();
break;
}
decodedFramesBlock.SendAsync(mat).Wait();
}
});
Task writeTask = Task.Factory.StartNew(() =>
{
int c = 0;
OpenCvSharp.Mat mat;
while (!decodedFramesBlock.Completion.IsCompleted)
{
++c;
mat = decodedFramesBlock.Receive();
outputVideo.Write(mat);
mat.Dispose();
Console.WriteLine("Frame " + c + " of " + inputVideo.FrameCount);
}
});
decodeTask.Wait();
writeTask.Wait();
Console.WriteLine("ready!");
outputVideo.Release();
/*
* var channels = img.Split();
* channels = channels.Select(c => c.EqualizeHist()).ToArray();
* foreach(var channel in channels)
* {
* channel.ConvertTo(channel, channel.Type(), 0.9, 0);
* }
* OpenCvSharp.Cv2.Merge(channels, img);
*/
}