title: Summoning stored images
body: <p>I have images in my iphone application I would like to summon when needed. </p>
  
  <p>The idea is when the user takes a photo and it's loaded on the imageview, he or she will be able to call out my custom images that's preloaded in the app. The user can then move the custom image around their original photo.</p>
  
  <p>My question is, how do I implement that? How do I store custom image for the user to call out later on?</p>
  
  <p>Thanks.</p>