title: cv::Mat's release method
body: <p>I would like to confirm whether <code>cv::Mat::release()</code> method is similar to <code>free()</code> in C programming, i.e., its deallocates the Matrix data from the memory.</p>
  
  <p>In particular, I would like to understand the behaviour of this method with respect to memory leaks and make sure there is no leak in may programs.</p>