title: android pinch zoom in Unity 5 UI image panel
body: <p>Help, I'm trying to add zoom in/out pinch gesture on an image panel how can I do that?
  I'm Using Unity 5, Currently I just display static image on UI image component and I want to add zoom in/out gesture there, how can I do that?</p>
  
  <p>I did use mask and scroll bar to scroll text, can I do similar thing for zoom gesture?</p>
  
  <p>PS: currently my image looks blur, is it because I resize it in unity? do I need image with bigger resolution? I've some concern on file size for deployment to google store.</p>
  
  <p>Please help it's my first unity project....</p>