title: how to extract an object from an image
body: <p>I want to extract an object such as a man ,a car or something like that from an image.The image is just an ordinary iamge, not medical image or other types for specific purpose.  </p>
  
  <p>I have searched for a long time and found that the automatic image segmentation algorithms just segment the image into a set of regions or gives out the contour in the image,not a semantic object. so I turned to the interactive image segmentation algorithms and I found some popular algorithms like interactive graph cuts and SIOX and so on. I think these algorithms just meet my demand.  </p>
  
  <p>Further more, I also downloaded two interactive image segmentation tool,the first one is the <a href="http://kspace.cdvp.dcu.ie/public/interactive-segmentation/index.html" rel="nofollow">interactive segmentation tool</a>, the second one is the <a href="http://www.cs.cmu.edu/~mohitg/segmentation.htm" rel="nofollow">interactive segmentation tool-box</a>.  </p>
  
  <p>So my quesions are</p>
  
  <p>1.if the interactive image segmentation algorithm is the right solution for my task since the performance is the most important.</p>
  
  <p>2.and if I want to use the automatic image segmentation algorithm, what should I do next?</p>
  
  <pre><code>Any suggestion will be  approciated.
  </code></pre>