Silverlight: Getting image (from OpenFileDialog) width/height

private void LoadImage(Uri uri)
{
    this.ResetProgressImage();
    BitmapImage image = new BitmapImage();
    image.DownloadProgress += new EventHandler<DownloadProgressEventArgs>(LoadImageDownloadProgress);
    image.UriSource = uri;
    this.ImageFull.Source = image;
}

private void LoadImageDownloadProgress(object sender, DownloadProgressEventArgs e)
{
    this.Dispatcher.BeginInvoke(delegate
    {
        this.ProgressImage.Value = e.Progress;
        if (e.Progress == 100)
        {
            ImageHelper.Current.Width = Math.Round(this.ImageFull.ActualWidth);
            ImageHelper.Current.Height = Math.Round(this.ImageFull.ActualHeight);
        }
    });
}

private void LoadImage(Stream stream)
{
    this.ResetProgressImage();
    BitmapImage image = new BitmapImage();
    image.DownloadProgress += new EventHandler<DownloadProgressEventArgs>(LoadImageDownloadProgress);
    image.SetSource(stream);
    this.ImageFull.Source = image;
}