title: watershed algorithm in matlab
body: <p>anyone knows how to write a function in matlab to segment the cells and compute the average
  cell area using the <a href="https://secure.wikimedia.org/wikipedia/en/wiki/Watershed_%28image_processing%29" rel="noreferrer">watershed algorithm</a>?
  any help would be much appreciated. Thank you!</p>
  
  <p>Here is an image of yeast cells</p>
  
  <p><img src="https://i.stack.imgur.com/nFDkX.png" alt="yeast cells"></p>