title: how to recognize simple handwriting shapes?
body: <p>I have a set of simple shapes (see following figure), and I want to recognize handwriting shape and figure out which shape it probably is in the set.</p>
  
  <p>Is there any simple algorithm to do that? Or any open source lib?</p>
  
  <p>BTW, my task is simple, so I don't use too complicated lib like OpenCV.</p>
  
  <p>Thanks, in advance!! </p>
  
  <p><img src="https://i.stack.imgur.com/SelXf.png" alt="shapes"></p>