Basler相机图片OpenCvSharp3

Question

我想使用Basler相机在C＃中将一个PictureBox放在WinForm上。 但我想将IGrabImage转换为Mat。因为我想用Mat。将它插入PictureBox。

请告诉我你的提示或解决方案。

PixelDataConverter converter = new PixelDataConverter();

    public Form1() {
        InitializeComponent();
        using (Camera camera = new Camera())
        {
            camera.CameraOpened += Configuration.AcquireContinuous;

            camera.Open();
            camera.Parameters[PLCameraInstance.MaxNumBuffer].SetValue(5);
            camera.StreamGrabber.Start();

            IGrabResult grabResult = camera.StreamGrabber.RetrieveResult(5000, TimeoutHandling.ThrowException);

            using (grabResult)
            {
                if (grabResult.GrabSucceeded) {
                    Mat rtnMat = convertToMat(grabResult);                       
                    Cv2.ImShow("test", rtnMat);
                    pictureBox1.Image = BitmapConverter.ToBitmap(frame);
                }
            }

            camera.StreamGrabber.Stop();
            camera.Close();
        }
    }

    private Mat convertToMat(IGrabResult rtnGrabResult) {
        IImage image = rtnGrabResult;
        converter.OutputPixelFormat = PixelType.BGR8packed;
        byte[] buffer = image.PixelData as byte[];
        return new Mat(rtnGrabResult.Width, rtnGrabResult.Height, MatType.CV_8UC1, buffer);
    }

Basler Image：

OpenCvSharp图片：

Answer 1

这是将IGrabResult转换为OpenCvSharp.Mat的正确方法。 我没有转换器就没有尝试过，但是您的主要问题是新Mat（..）参数的顺序。在OpenCV中，首先声明行，然后声明列。这意味着首先是高度，然后是宽度。彩色图像的MatType也像@Nyerguds所说的那样是错误的。必须是CV_8UC3。

更正的代码：

private Mat convertToMat(IGrabResult rtnGrabResult) {
        converter.OutputPixelFormat = PixelType.BGR8packed;
        byte[] buffer = new byte[conv.GetBufferSizeForConversion(rtnGrabResult];
        converter.Convert(buffer, rtnGrabResult);
        return new Mat(rtnGrabResult.Height, rtnGrabResult.Width, MatType.CV_8UC3, buffer);
}