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  • Emgu CV

    摄像头

    Capture _capture = new Capture(0);

    _capture.SetCaptureProperty(Emgu.CV.CvEnum.CAP_PROP.CV_CAP_PROP_FPS, 30);
    _capture.SetCaptureProperty(Emgu.CV.CvEnum.CAP_PROP.CV_CAP_PROP_FRAME_HEIGHT, capheight);

    var frame = _capture.QueryFrame();

    视频保存

    VideoWriter videoWriter =new VideoWriter(filename,CvInvoke.CV_FOURCC('M', 'J', 'P', 'G'), 20, capwidth , capheight, true);

    IntPtr  Fcapture = CvInvoke.cvCreateFileCapture(filename);

    videoWriter.WriteFrame<Bgr, Byte>(rimage);

    图片操作

     

    Image<Bgr, byte> frameg = image.Copy(rectangle)

    frameg = frameg .Rotate(90f, new Bgr(0,0,0), false);

    frame = frameb.Flip(Emgu.CV.CvEnum.FLIP.HORIZONTAL);

    Image<Bgr, byte> rimage = new Image<Bgr, byte>(capwidth , capheight);
    CvInvoke.cvSetImageROI(rimage.Ptr, new Rectangle(0, 0, capwidth, capheight));
    CvInvoke.cvCopy(frameg.Ptr, rimage.Ptr, IntPtr.Zero);

    灰度

    Image<Gray, Byte> graye = frameg.Convert<Gray, Byte>().Resize(checkper, Emgu.CV.CvEnum.INTER.CV_INTER_LINEAR);、

    画矩形

    frameg.Draw(r, new Bgr(0, 255, 0), 2);

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  • 原文地址:https://www.cnblogs.com/ahuo/p/5787322.html
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