Thanks Jaykay832 :-D
Your answer was straight forward.
double width = image1.ActualWidth;
double height = image1.ActualHeight;
RenderTargetBitmap bmpCopied = new RenderTargetBitmap((int)Math.Round(width), (int)Math.Round(height), 96, 96, PixelFormats.Default);
DrawingVisual dv = new DrawingVisual();
using (DrawingContext dc = dv.RenderOpen())
{
VisualBrush vb = new VisualBrush(image1);
dc.DrawRectangle(vb, null, new Rect(new Point(), new Size(width, height)));
}
bmpCopied.Render(dv);
Clipboard.SetImage(bmpCopied);