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<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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<html xmlns="http://www.w3.org/1999/xhtml">
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
    <title>6.4. Destripe</title>
    <link rel="stylesheet" href="gimp-help-plain.css" type="text/css" />
    <link rel="stylesheet" href="gimp-help-screen.css" type="text/css" />
    <meta name="generator" content="DocBook XSL Stylesheets V1.66.1" />
    <link rel="start" href="index.html" title="&#10;      &#10;    " />
    <link rel="up" href="ch06s06.html" title="6. Enhance filters" />
    <link rel="prev" href="ch06s06s03.html" title="6.3. Despeckle" />
    <link rel="next" href="ch06s06s05.html" title="6.5. NL Filter" />
  </head>
  <body>
    <div xmlns="" class="navheader">
      <table width="100%" summary="Navigation header">
        <tr>
          <th colspan="3" align="center" id="chaptername">6.4. Destripe</th>
        </tr>
        <tr>
          <td width="20%" align="left"><a accesskey="p" href="ch06s06s03.html">Prev</a> </td>
          <th width="60%" align="center" id="sectionname">6.4. Destripe</th>
          <td width="20%" align="right"> <a accesskey="n" href="ch06s06s05.html">Next</a></td>
        </tr>
      </table>
      <hr />
    </div>
    <div class="sect2" lang="en" xml:lang="en">
      <div class="titlepage">
        <div>
          <div>
            <h3 class="title"><a id="plug-in-destripe"></a>6.4. Destripe</h3>
          </div>
        </div>
      </div>
      <a id="id3362460" class="indexterm"></a>
      <div class="mediaobject">
        <img src="../images/filters/filters-enhance-destripe.png" />
      </div>
      <div class="simplesect" lang="en" xml:lang="en">
        <div class="titlepage">
          <div>
            <div>
              <h4 class="title"><a id="id3362836"></a>Overview</h4>
            </div>
          </div>
        </div>
        <p>
      This filter is found in
      <span class="guimenuitem">Image&gt;Filters/Enhance/Des<span class="accel">t</span>ripe...</span>
    </p>
        <p>
      It is used to remove vertical stripes caused by poor quality
      scanners. It works by adding a pattern that will interfere with
      the image, removing stripes if setting is good. This
      "negative" pattern is calculated from vertical elements
      of the image, so don't be surprised if you see stripes on the
      preview of an image that has none. And if pattern
      "strength" is too high, you image will be striped.
    </p>
        <p>
      If, after a first pass, a stripe persists, rectangular-select it
      and apply filter again (all other selection type may worsen the
      result).
    </p>
      </div>
      <div class="simplesect" lang="en" xml:lang="en">
        <div class="titlepage">
          <div>
            <div>
              <h4 class="title"><a id="id3362870"></a>Options</h4>
            </div>
          </div>
        </div>
        <div class="variablelist">
          <dl>
            <dt>
              <span class="term">Preview</span>
            </dt>
            <dd>
              <p>
            Parameter setting results are interactively displayed in
            preview. Scroll bars allow you to move around the image.
          </p>
            </dd>
            <dt>
              <span class="term">Parameter setting</span>
            </dt>
            <dd>
              <p>
            </p>
              <div class="itemizedlist">
                <ul type="disc">
                  <li>
                    <p>
                  <span class="guilabel">Create histogram</span>: This "histogram"
                  is a black and white image showing the interference
                pattern more legibly.
                </p>
                  </li>
                  <li>
                    <p>
                  <span class="guilabel">Width</span>: Slider and input box allow
                  to set "strength" of filter (2-100): more than 60 is
                  rarely necessary and may create artifacts.
                </p>
                  </li>
                </ul>
              </div>
              <p>
          </p>
              <p>
            A test image can be found at 
            <a href="http://www.goof.com" target="_top">www.goof.com</a>
          </p>
            </dd>
          </dl>
        </div>
      </div>
    </div>
    <div class="navfooter">
      <hr />
      <table width="100%" summary="Navigation footer">
        <tr>
          <td width="40%" align="left"><a accesskey="p" href="ch06s06s03.html">Prev</a> </td>
          <td width="20%" align="center">
            <a accesskey="u" href="ch06s06.html">Up</a>
          </td>
          <td width="40%" align="right"> <a accesskey="n" href="ch06s06s05.html">Next</a></td>
        </tr>
        <tr>
          <td width="40%" align="left" valign="top">6.3. Despeckle </td>
          <td width="20%" align="center">
            <a accesskey="h" href="index.html">Home</a>
          </td>
          <td width="40%" align="right" valign="top"> 6.5. NL Filter</td>
        </tr>
      </table>
    </div>
  </body>
</html>