public void DrawingBitmap_ToWriteableBitmap()
 {
     var bitmap = _bitmapSource.ToWriteableBitmap();
 }
 public void GlobalSetup()
 {
     _bitmapSource    = BitmapSourceExtension.FromFile(_sourceBitmapPath);
     _writeableBitmap = _bitmapSource.ToWriteableBitmap();
     _container       = new ImagePixelsContainer(_bitmapSource.PixelWidth, _bitmapSource.PixelHeight);
 }