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  1. <?xml version="1.0" encoding="UTF-8" standalone="no"?>
  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>2.2.¬† Blur</title>
  7.     <link rel="stylesheet" href="gimp-help-plain.css" type="text/css" />
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  12.     <link rel="start" href="index.html" title="GNU Image Manipulation Program" />
  13.     <link rel="up" href="filters-blur.html" title="2.¬† Blur Filters" />
  14.     <link rel="prev" href="filters-blur.html" title="2.¬† Blur Filters" />
  15.     <link rel="next" href="plug-in-gauss.html" title="2.3.¬† Gaussian Blur" />
  16.   </head>
  17.   <body>
  18.     <div class="navheader">
  19.       <table width="100%" summary="Navigation header">
  20.         <tr>
  21.           <th colspan="3" align="center">2.2.¬†
  22.     <span lang="en" xml:lang="en">Blur</span>
  23.   </th>
  24.         </tr>
  25.         <tr>
  26.           <td width="20%" align="left"><a accesskey="p" href="filters-blur.html"><img src="../images/prev.png" alt="Prev" /></a>¬†</td>
  27.           <th width="60%" align="center">2.¬†
  28.     <span lang="en" xml:lang="en">Blur Filters</span>
  29.   </th>
  30.           <td width="20%" align="right">¬†<a accesskey="n" href="plug-in-gauss.html"><img src="../images/next.png" alt="Next" /></a></td>
  31.         </tr>
  32.       </table>
  33.       <hr />
  34.     </div>
  35.     <div class="sect2" lang="en" xml:lang="en">
  36.       <div class="titlepage">
  37.         <div>
  38.           <div>
  39.             <h3 class="title"><a id="plug-in-blur"></a>2.2.¬†
  40.     <span lang="en" xml:lang="en">Blur</span>
  41.   </h3>
  42.           </div>
  43.           <div>
  44.             <div class="revhistory">
  45.               <table border="1" width="100%" summary="Revision history">
  46.                 <tr>
  47.                   <th align="left" valign="top" colspan="3">
  48.                     <b>Revision History</b>
  49.                   </th>
  50.                 </tr>
  51.                 <tr>
  52.                   <td align="left">Revision $Revision: 2359 $</td>
  53.                   <td align="left">2006-10-23</td>
  54.                   <td align="left">j.h</td>
  55.                 </tr>
  56.               </table>
  57.             </div>
  58.           </div>
  59.         </div>
  60.       </div>
  61.       <a id="id2730784" class="indexterm"></a>
  62.       <a id="id2730806" class="indexterm"></a>
  63.       <div class="sect3" lang="en" xml:lang="en">
  64.         <div class="titlepage">
  65.           <div>
  66.             <div>
  67.               <h4 class="title"><a id="id2730814"></a>2.2.1.¬†
  68.       <span lang="en" xml:lang="en">Overview</span>
  69.     </h4>
  70.             </div>
  71.           </div>
  72.         </div>
  73.         <div class="figure">
  74.           <a id="id2730825"></a>
  75.           <p class="title">
  76.             <b>Figure¬†16.8.¬†
  77.         <span lang="en" xml:lang="en">
  78.           The Blur filter applied to a photograph
  79.         </span>
  80.       </b>
  81.           </p>
  82.           <div class="figure-contents">
  83.             <div class="mediaobject">
  84.               <img src="../images/filters/examples/taj_orig.jpg" alt="The Blur filter applied to a photograph" />
  85.               <div class="caption">
  86.                 <p>Original</p>
  87.               </div>
  88.             </div>
  89.             <div class="mediaobject">
  90.               <img src="../images/filters/examples/blur-taj-blur.jpg" alt="The Blur filter applied to a photograph" />
  91.               <div class="caption">
  92.                 <p>Blur applied</p>
  93.               </div>
  94.             </div>
  95.           </div>
  96.         </div>
  97.         <br class="figure-break" />
  98.         <p>
  99.       The simple Blur filter produces an effect similar to that of an out of
  100.       focus camera shot. To produce this blur effect, the filter takes the
  101.       average of the present pixel value and the value of adjacent pixels and
  102.       sets the present pixel to that average value.
  103.     </p>
  104.         <p>
  105.       Filter advantage is its calculation speed. It suits big images.
  106.     </p>
  107.         <p>
  108.       Filter disadvantage is that its action is hardly perceptible on big
  109.       images, but very strong on small images.
  110.     </p>
  111.       </div>
  112.       <div class="sect3" lang="en" xml:lang="en">
  113.         <div class="titlepage">
  114.           <div>
  115.             <div>
  116.               <h4 class="title"><a id="id2730911"></a>2.2.2.¬†
  117.       <span lang="en" xml:lang="en">Activate the filter</span>
  118.     </h4>
  119.             </div>
  120.           </div>
  121.         </div>
  122.         <p>
  123.       You can find this filter through:
  124.       <span class="guimenu">Filte<span class="accel">r</span>s</span> ‚Üí <span class="guisubmenu"><span class="accel">B</span>lur</span> ‚Üí <span class="guimenuitem"><span class="accel">B</span>lur</span>
  125.     </p>
  126.       </div>
  127.     </div>
  128.     <div class="navfooter">
  129.       <hr />
  130.       <table width="100%" summary="Navigation footer">
  131.         <tr>
  132.           <td width="40%" align="left"><a accesskey="p" href="filters-blur.html"><img src="../images/prev.png" alt="Prev" /></a>¬†</td>
  133.           <td width="20%" align="center">
  134.             <a accesskey="u" href="filters-blur.html">
  135.               <img src="../images/up.png" alt="Up" />
  136.             </a>
  137.           </td>
  138.           <td width="40%" align="right">¬†<a accesskey="n" href="plug-in-gauss.html"><img src="../images/next.png" alt="Next" /></a></td>
  139.         </tr>
  140.         <tr>
  141.           <td width="40%" align="left" valign="top"><a accesskey="p" href="filters-blur.html">2.¬†
  142.     <span lang="en" xml:lang="en">Blur Filters</span>
  143.   </a>¬†</td>
  144.           <td width="20%" align="center">
  145.             <a accesskey="h" href="index.html">
  146.               <img src="../images/home.png" alt="Home" />
  147.             </a>
  148.           </td>
  149.           <td width="40%" align="right" valign="top">¬†<a accesskey="n" href="plug-in-gauss.html">2.3.¬†
  150.     <span lang="en" xml:lang="en">Gaussian Blur</span>
  151.   </a></td>
  152.         </tr>
  153.       </table>
  154.     </div>
  155.   </body>
  156. </html>
  157.