private void RenderImageThatMasksText(VideoInterpreter.VideoCapture frame, IBoundingBox invalidatedRegion)
{
frame.CopyToWriteableBitmap(BackgroundOverlayImage, invalidatedRegion);
BackgroundOverlay.Width = frame.Width;
BackgroundOverlay.Height = frame.Height;
foreach (var textLoc in TextLocations)
{
CopyBitmapToWriteableBitmap(_backgroundBitmap, BackgroundOverlayImage, textLoc.TreeNode);
}
}
