title: How to correctly initialize a cv::Mat pointer to a 0 matrix with zeros()
body: <p>I have the following initialized at the top of a function:</p>
  
  <pre><code>cv::Mat *m;
  </code></pre>
  
  <p>Then, within a loop I am allocating new matrices with this name and storing them in a list.  I want them to initialize as zero matrices with a specific size. </p>
  
  <p>This is what I tried:</p>
  
  <pre><code>m = new cv::Mat::zeros(height, width, CV_32F);
  </code></pre>
  
  <p>I tried this based on the example given in the OpenCV documentation.  What is the correct way to perform this operation?</p>