Avoid System.Runtime.InteropServices.COMException in PresentationCore.dll

I know there are other questions about this already, but I couldn't find an answer to my problem in them.

I am pretty new to WPF and I am building media player which also includes displaying images. One of the options is to tile image. That is done like this:

private void TilePic(string path) {
    var containerWidth = MyMainWindow.Width;
    double xPos = 0;
    double yPos = 0;
    Image image = null;
    var imageSource = new BitmapImage(new Uri(path.Replace("/", "\\")));
    while (yPos < MyMainWindow.Height) {
        while (xPos < MyMainWindow.Width) {
            image = new Image();
            ImageBehavior.SetAnimatedSource(image, imageSource);
            image.Margin = new Thickness(xPos, yPos, 0, 0);
            image.Width = imageSource.Width;
            image.Height = imageSource.Height;
            MainGrid.Children.Add(image);
            xPos += imageSource.Width;
        }
        xPos = 0;
        yPos += imageSource.Height;
    }
}

And for one specific gif image (3,13 MB 200 x 196), after function completes I am receiving. Image is small, but long and for 1920x1080 screen, this adds ~50 images.

A first chance exception of type 'System.Runtime.InteropServices.COMException' occurred in PresentationCore.dll
at System.Windows.Media.Imaging.RenderTargetBitmap.CopyCommon(RenderTargetBitmap sourceBitmap)

Image is small, but long and for 1920x1080 screen, this adds ~50 images.

I red that it's about too many GDI handles. With GDIView I can see that it has ~7000 region handles. Can someone tell me what is happening here and how to avoid this?

Edit: Okey, here are the exception details if they help:

System.Runtime.InteropServices.COMException occurred
  _HResult=-2003304445
  _message=Exception from HRESULT: 0x88980003
  HResult=-2003304445
  IsTransient=false
  Message=Exception from HRESULT: 0x88980003
  Source=PresentationCore
  ErrorCode=-2003304445
  StackTrace:
       at System.Windows.Media.Imaging.RenderTargetBitmap.CopyCommon(RenderTargetBitmap sourceBitmap)
InnerException: