I know how to do it in WinForms
byte[] binaryData = Convert.FromBase64String(bgImage64); image = Image.FromStream(new MemoryStream(binaryData));
byte[] binaryData = Convert.FromBase64String(bgImage64); BitmapImage bi = new BitmapImage(); bi.BeginInit(); bi.StreamSource = new MemoryStream(binaryData); bi.EndInit(); Image img = new Image(); img.Source = bi;