Embedding DWT Image Watermark Using GUI

I have coded in Matlab for embedding a watermark on an image using 2-level DWT. The GUI has five buttons: "select cover image", "select host image", "show watermarked Image", "save" and "exit". The code works but I do not want the user to see the decomposition of the image instead get the watermarked image when the "show watermark button" is clicked.