title: Start video read from a particular frame
body: <p>I have obtained the frame_count of a saved video.</p>
  
  <pre><code>self.frame_count = self.capture.get(cv.CV_CAP_PROP_FRAME_COUNT) - 1
  </code></pre>
  
  <p>Now, I want to start a frame read from a particular frame_count. How do I do this? </p>
  
  <p><strong>Reason</strong>: I need to track an object and I have found the location of the object I want to track using HSV image segmentation. Now to track it, I intend to start the video from that particular frame and set the track window to the objects' coordinates. </p>
  
  <p><strong>Want</strong>: It should not be redundant and computationally intensive. </p>