How to display webcam images captured with Emgu?

Question

I\'m currently working on a project that use Facial Recognition. I therefore need a way to display the webcam images to the user so he can adjust his face.

I\'ve bee

Answer 1

Look on the Emgu wiki -> Tutorials -> Examples -> WPF (Windows Presentation Foundation) It contains the following code snippet to convert your IImage to a BitmapSource, which you can directly apply to your control.

using Emgu.CV; using System.Runtime.InteropServices; ...

    /// 

    /// Delete a GDI object
    /// 
    /// The poniter to the GDI object to be deleted
    /// 
    [DllImport("gdi32")]
    private static extern int DeleteObject(IntPtr o);

    /// 

    /// Convert an IImage to a WPF BitmapSource. The result can be used in the Set Property of Image.Source
    /// 
    /// The Emgu CV Image
    /// The equivalent BitmapSource
    public static BitmapSource ToBitmapSource(IImage image)
    {
        using (System.Drawing.Bitmap source = image.Bitmap)
        {
            IntPtr ptr = source.GetHbitmap(); //obtain the Hbitmap

            BitmapSource bs = System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(
                ptr,
                IntPtr.Zero,
                Int32Rect.Empty,
                System.Windows.Media.Imaging.BitmapSizeOptions.FromEmptyOptions());

            DeleteObject(ptr); //release the HBitmap
            return bs;
        }
    }