大家好，我是 opencvsharp 编程的新手。我正在尝试制作一个程序，通过图片框流式传输我的相机 View 。 while 循环使我的程序崩溃。没有循环它工作正常，虽然它只显示一张图片。我正在使用 opencvsharp3。
VideoCapture capture;
Mat frame;
Bitmap image;
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
if (button1.Text.Equals("Start"))
{
frame = new Mat();
capture = new VideoCapture();
capture.Open(2);
capture.Read(frame);
Bitmap image = BitmapConverter.ToBitmap(frame);
while (true)
{
pictureBox1.Image = image;
}
button1.Text = "Stop";
}
else
{
capture.Release();
button1.Text = "Start";
}
}
更新:感谢 GuidoG 的评论，我已经弄明白了。
VideoCapture capture;
Mat frame;
Bitmap image;
private Thread camera;
int isCameraRunning = 0;
private void CaptureCamera()
{
camera = new Thread(new ThreadStart(CaptureCameraCallback));
camera.Start();
}
private void CaptureCameraCallback()
{
frame = new Mat();
capture = new VideoCapture();
capture.Open(2);
while (isCameraRunning == 1)
{
capture.Read(frame);
image = BitmapConverter.ToBitmap(frame);
pictureBox1.Image = image;
image = null;
}
}
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
if (button1.Text.Equals("Start"))
{
CaptureCamera();
button1.Text = "Stop";
isCameraRunning = 1;
}
else
{
capture.Release();
button1.Text = "Start";
isCameraRunning = 0;
}
}
}
}
最佳答案
private void CaptureCameraCallback()
{
frame = new Mat();
capture = new VideoCapture();
capture.Open(2);
while (isCameraRunning == 1)
{
capture.Read(frame);
image = BitmapConverter.ToBitmap(frame);
pictureBox1.Image = image;
image = null;
}
}
该部分应放在 beginBeginInvoke() 中。 您需要创建一个委托(delegate)函数
关于c# Opencvsharp 3 camcorder capture on windows 窗体，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/39450823/