title: How to detect objects from Image in iOS?
body: <p>I have an image, on an image there are three things Spoon, Cup and basket.
  Now I have to identify when user click on image nothing will happen until and unless the user  click on spoon, cup &amp; basket.</p>
  
  <p>If user click on spoon the spoon colour will become green. 
  Same for cup and basket.</p>
  
  <p>And I have no idea how to do this. I want some hints from experts and how and where to start?</p>
  
  <p>Any idea or suggestions would be highly welcome.</p>