title: Black color object detection HSV range in opencv
body: <p>What is the range of Black color object detection?  </p>
  
  <p>i tried following code</p>
  
  <pre><code>cvInRangeS(imgHSV, cvScalar(0, 0, 0, 0), cvScalar(0, 255, 255, 0), imgThreshold);
  </code></pre>
  
  <p>but its not working.</p>