<?xml version='1.0' encoding='UTF-8'?>

<sect2 id='filters-noise-introduction' lang="en;cs;fr">
  <title lang="en">Noise filters introduction</title>
  <title lang="cs">Úvod do šumových filtrů</title>
  <title lang="fr">Introduction aux filtres de bruit</title>

  <indexterm>
    <primary lang="en">Filter</primary>
    <secondary lang="en">Noise</secondary>
    <primary lang="cs">filtry</primary>
    <secondary lang="cs">šum</secondary>
    <primary lang="fr">Filtre</primary>
    <secondary lang="fr">Bruit</secondary>
    <tertiary lang="fr">Introduction</tertiary>
  </indexterm>
  <para lang="en">
    TO BE WRITTEN
  </para>
  <para lang="cs">
    K NAPSÁNÍ
  </para>
  <para lang="fr">
    À ÉCRIRE
  </para>
</sect2>
