title: how to detect shapes in an image?
body: <p>I want to detect a circle, rectangle shaped object in an image and read the information from that object. Is there any api in java which will be helpful to me?</p>
  
  <p>Ex: Detect a round shaped coin in a white background and obtain information about that that coin like ( value of a coin, etc.)</p>
  
  <p>Thanks.</p>