ef="http://usage.imagemagick.org/transform/#canny#canny">Canny edge detection</a>, <a href="command-line-options.html#hough-line">Hough lines</a>.</td>
  </tr>
  <tr>
    <td><a href="https://usage.imagemagick.org/fourier/">Discrete Fourier transform</a></td>
    <td>implements the forward and inverse <a href="https://en.wikipedia.org/wiki/Discrete_Fourier_transform">DFT</a>.</td>
  </tr>
  <tr>
    <td><a href="distribute-pixel-cache.html">Distributed pixel cache</a></td>
    <td>offload intermediate pixel