title: How to detect Hotspots in an image
body: <p>How to detect a hotspot in an image using opencv? I have tried googling but couldnt get a clue of it.</p>
  
  <p><strong>Description:</strong>
  I need to filter good images from a live video stream. In this case I need to just detect the Hotspot in a frame. I need to do this in opencv. </p>
  
  <p><strong>What is HotSpot?</strong></p>
  
  <p>Hot spots are shiny areas on a subject’s face which are caused by a flash reflecting off a shiny surface or by uneven lighting. It tends to make the subject look as if they are sweating, which is not a good look.</p>
  
  <p><strong>Update :</strong>
  <a href="http://answers.opencv.org/question/7223/hotspots-in-an-image/" rel="noreferrer">http://answers.opencv.org/question/7223/hotspots-in-an-image/</a>
  <a href="http://en.wikipedia.org/wiki/Specular_highlight" rel="noreferrer">http://en.wikipedia.org/wiki/Specular_highlight</a></p>
  
  <p>The above two links also could help for my Post?</p>
  
  <p><strong>Image with HotSpot:</strong></p>
  
  <p><img src="https://i.stack.imgur.com/WIuaH.jpg" alt="enter image description here"></p>
  
  <p><strong>Image Without HotSpot:</strong></p>
  
  <p><img src="https://i.stack.imgur.com/8ASyq.jpg" alt="enter image description here"></p>