td>
    <td>annotation bounding box color</td>
  </tr>

  <tr>
    <td><a href="command-line-options.html#unique-colors">-unique-colors</a></td>
    <td>discard all but one of any pixel color.</td>
  </tr>

  <tr>
    <td><a href="command-line-options.html#units">-units <var>type</var></a></td>
    <td>the units of image resolution</td>
  </tr>

  <tr>
    <td><a href="command-line-options.html#unsharp">-unsharp <var>geometry</var></a></td>
    <td>sharpen the image</td>
  </tr>

  <tr>
    <td><a href="com