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Extensible Markup Language  |  2004-07-20  |  4.8 KB  |  125 lines
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  2. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
  3. <html xmlns="http://www.w3.org/1999/xhtml">
  4.   <head>
  5.     <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
  6.     <title>6.2.┬áDeinterlace</title>
  7.     <link rel="stylesheet" href="gimp-help-plain.css" type="text/css" />
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  9.     <meta name="generator" content="DocBook XSL Stylesheets V1.64.1" />
  10.     <link rel="home" href="index.html" title="GIMP User Manual" />
  11.     <link rel="up" href="ch05s06.html" title="6.┬áEnhance filters" />
  12.     <link rel="previous" href="ch05s06.html" title="6.┬áEnhance filters" />
  13.     <link rel="next" href="ch05s06s03.html" title="6.3.┬áDespeckle" />
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  15.   <body>
  16.     <div class="navheader">
  17.       <table width="100%" summary="Navigation header">
  18.         <tr>
  19.           <th colspan="3" align="center">6.2.┬áDeinterlace</th>
  20.         </tr>
  21.         <tr>
  22.           <td width="20%" align="left"><a accesskey="p" href="ch05s06.html">Prev</a>┬á</td>
  23.           <th width="60%" align="center">6.┬áEnhance filters</th>
  24.           <td width="20%" align="right">┬á<a accesskey="n" href="ch05s06s03.html">Next</a></td>
  25.         </tr>
  26.       </table>
  27.       <hr />
  28.     </div>
  29.     <div class="sect2" lang="en" xml:lang="en">
  30.       <div class="titlepage">
  31.         <div>
  32.           <div>
  33.             <h3 class="title"><a id="plug-in-deinterlace"></a>6.2.┬áDeinterlace</h3>
  34.           </div>
  35.         </div>
  36.         <div></div>
  37.       </div>
  38.       <a id="id2975112" class="indexterm"></a>
  39.       <div class="mediaobject">
  40.         <img src="../images/filters/filters-enhance-deinterlace.png" />
  41.       </div>
  42.       <div class="simplesect" lang="en" xml:lang="en">
  43.         <div class="titlepage">
  44.           <div>
  45.             <div>
  46.               <h4 class="title"><a id="id2975134"></a>Overview</h4>
  47.             </div>
  48.           </div>
  49.           <div></div>
  50.         </div>
  51.         <div class="variablelist">
  52.           <dl>
  53.             <dt></dt>
  54.             <dd>
  55.               <p>
  56.             This filter is found in 
  57.             <span class="guimenuitem">Image>Filters/Enhance/<span class="accel">D</span>einterlace</span>
  58.           </p>
  59.               <p>
  60.             Images captured by videocards, especially when fast movement is recorded, may look blurred 
  61.             and stripped, with splitted objects. This is due to how cameras work. They don't record 25 
  62.             images per second, but 50, with half vertical resolution. There are two interlaced images 
  63.             in one frame. First line of first image is followed by first line of second image followed 
  64.             by second line of first image... etc. So, if there have been an important move betwen the 
  65.            two images, objects will appear splitted, shifted, stripped.
  66.           </p>
  67.               <p>
  68.             The Deinterlace filter keeps only one of both images and replaces missing lines by a gradient 
  69.             between previous and following lines. The resulting image, or selection, will be somewhat 
  70.             blurred, but can be improved by enhance filters
  71.           </p>
  72.               <p>
  73.             A test image can be found at 
  74.             <a href="/cgi-bin/olink?sysid="><i class="citetitle">www.alparysoft.com</i></a>
  75.           </p>
  76.             </dd>
  77.           </dl>
  78.         </div>
  79.       </div>
  80.       <div class="simplesect" lang="en" xml:lang="en">
  81.         <div class="titlepage">
  82.           <div>
  83.             <div>
  84.               <h4 class="title"><a id="id2975193"></a>Options</h4>
  85.             </div>
  86.           </div>
  87.           <div></div>
  88.         </div>
  89.         <div class="variablelist">
  90.           <dl>
  91.             <dt>
  92.               <span class="term">Mode</span>
  93.             </dt>
  94.             <dd>
  95.               <p>
  96.             <span class="guilabel">Keep odd lines</span> and <span class="guilabel">Keep even lines</span>: One 
  97.             of them may render a better result. You must try both.
  98.           </p>
  99.             </dd>
  100.           </dl>
  101.         </div>
  102.       </div>
  103.     </div>
  104.     <div class="navfooter">
  105.       <hr />
  106.       <table width="100%" summary="Navigation footer">
  107.         <tr>
  108.           <td width="40%" align="left"><a accesskey="p" href="ch05s06.html">Prev</a>┬á</td>
  109.           <td width="20%" align="center">
  110.             <a accesskey="u" href="ch05s06.html">Up</a>
  111.           </td>
  112.           <td width="40%" align="right">┬á<a accesskey="n" href="ch05s06s03.html">Next</a></td>
  113.         </tr>
  114.         <tr>
  115.           <td width="40%" align="left" valign="top">6.┬áEnhance filters┬á</td>
  116.           <td width="20%" align="center">
  117.             <a accesskey="h" href="index.html">Home</a>
  118.           </td>
  119.           <td width="40%" align="right" valign="top">┬á6.3.┬áDespeckle</td>
  120.         </tr>
  121.       </table>
  122.     </div>
  123.   </body>
  124. </html>
  125.