title: How can I expand the webcam´s window? MATLAB
body: <p>I have followed this tutorial <a href="http://es.mathworks.com/help/supportpkg/usbwebcams/ug/acquire-images-from-webcams.html" rel="nofollow">Acquire Images from Webcams</a> but  when I make the preview of the image with 
  <code>preview(cam)</code> the image appears small and i want the image in fullscreem.</p>
  
  <p>I have proved with <code>set(gcf,'units','normalized','outerposition',[0 0 1 1])</code> but it doesnt work.</p>
  
  <p>How can I expand the preview image? Thanks a lot</p>