title: MATLAB image processing HELP!
body: <p>I am trying to find the area of some regions on an image.</p>
  
  <p><a href="http://img821.imageshack.us/img821/7541/cell1.jpg" rel="nofollow noreferrer">alt text http://img821.imageshack.us/img821/7541/cell1.jpg</a></p>
  
  <p>For example, I want find the area of the dark-large region on the upper left side. 
  and I want to find the area of any of the closed geometry from the image. </p>
  
  <p>How can I do that in matlab. </p>
  
  <p>I looked online and I tried regionprops(), but it didn't identify the different regions.</p>