title: Zoom out on large UIImageView within an UIScrollView
body: <p><strong>Case:</strong> I have a simple piece of code for displaying/zooming/scrolling a large image in an UIImageView->UIScrollView. In this UIScrollView content I want to place buttons to create clickable areas.</p>
  
  <p><strong>Issue:</strong> When I zoom in the quality remains proper but, when I zoom out to the highest posible level than the image is getting dotted and some lines aren't visible anymore. </p>
  
  <p><strong>Tried:</strong> I tried to regenerate the UIImage with Interpolation Quality on kCGInterpolationHigh and tried to change the size of the image after every zoom change. As you might aspect, no results jet.</p>