method to generate an intensity value from a pixel</td>
  </tr>

  <tr>
    <td><a href="command-line-options.html#integral">-integral</a></td>
    <td>Calculate the sum of values (pixel values) in the image</td>
  </tr>

  <tr>
    <td><a href="command-line-options.html#intent">-intent <var>type</var></a></td>
    <td>type of rendering intent when managing the image color</td>
  </tr>

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