he lower path.</p></td>
    </tr>
    <tr>
      <th>add</th>
      <td><p>A logical value indicating whether to add new ring borders.</p></td>
    </tr>
    </table>
    
    <h2 class="hasAnchor" id="value"><a class="anchor" href="#value"></a>Value</h2>

    <p>A matrix (grayscale image) or array (color image)
representing the tree ring image.</p>
    
    <h2 class="hasAnchor" id="details"><a class="anchor" href="#details"></a>Details</h2>

    <p>This function is used to remove existing ring borders, or