title: How to crop the image in iPhone
body: <p>I want to do the same thing as asked in <a href="https://stackoverflow.com/questions/2754618/how-to-crop-an-image-using-rectangale-overlay-and-touch-on-iphone">this</a> question.
  In my App i want to crop the image like we do image cropping in FaceBook can any one guide me with the link of good tutorial or with any sample code. The Link which i have provided will completely describe my requirement. </p>