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Extensible Markup Language  |  2004-07-20  |  4.2 KB  |  116 lines
  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>5.4.┬áSobel</title>
  7.     <link rel="stylesheet" href="gimp-help-plain.css" type="text/css" />
  8.     <link rel="stylesheet" href="gimp-help-screen.css" type="text/css" />
  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="ch05s05.html" title="5.┬áEdge-detect filters" />
  12.     <link rel="previous" href="ch05s05s03.html" title="5.3.┬áLaplace" />
  13.     <link rel="next" href="ch05s06.html" title="6.┬áEnhance filters" />
  14.   </head>
  15.   <body>
  16.     <div class="navheader">
  17.       <table width="100%" summary="Navigation header">
  18.         <tr>
  19.           <th colspan="3" align="center">5.4.┬áSobel</th>
  20.         </tr>
  21.         <tr>
  22.           <td width="20%" align="left"><a accesskey="p" href="ch05s05s03.html">Prev</a>┬á</td>
  23.           <th width="60%" align="center">5.┬áEdge-detect filters</th>
  24.           <td width="20%" align="right">┬á<a accesskey="n" href="ch05s06.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-sobel"></a>5.4.┬áSobel</h3>
  34.           </div>
  35.         </div>
  36.         <div></div>
  37.       </div>
  38.       <a id="id2974932" class="indexterm"></a>
  39.       <div class="mediaobject">
  40.         <img src="../images/filters/filters-edgedetect-sobel.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="id2974953"></a>Overview</h4>
  47.             </div>
  48.           </div>
  49.           <div></div>
  50.         </div>
  51.         <p>
  52.       This filter is found in 
  53.       <span class="guimenuitem">Image>Filters/Edge detect/<span class="accel">S</span>obel</span>
  54.     </p>
  55.       </div>
  56.       <div class="simplesect" lang="en" xml:lang="en">
  57.         <div class="titlepage">
  58.           <div>
  59.             <div>
  60.               <h4 class="title"><a id="id2974976"></a>Options</h4>
  61.             </div>
  62.           </div>
  63.           <div></div>
  64.         </div>
  65.         <div class="variablelist">
  66.           <dl>
  67.             <dt>
  68.               <span class="term">Parameters Settings</span>
  69.             </dt>
  70.             <dd>
  71.               <p>
  72.             </p>
  73.               <div class="itemizedlist">
  74.                 <p>
  75.                 <span class="guilabel">Horizontally</span>: Only near horizontal edges are displayed.
  76.               </p>
  77.                 <p>
  78.                 <span class="guilabel">Vertically</span>: Only near vertical edges are displayed.
  79.               </p>
  80.                 <p>
  81.                 <span class="guilabel">Keep sign of result</span>: (Only if one direction is selected): 
  82.                 When this option is checked, opposite edges have opposite color (red-cyan, 
  83.                 blue-yellow, green-magenta, black-white). With grey level images this results 
  84.                 in a flat relief with bumps and hollows.
  85.               </p>
  86.                 <ul type="disc"></ul>
  87.               </div>
  88.               <p>
  89.           </p>
  90.             </dd>
  91.           </dl>
  92.         </div>
  93.       </div>
  94.     </div>
  95.     <div class="navfooter">
  96.       <hr />
  97.       <table width="100%" summary="Navigation footer">
  98.         <tr>
  99.           <td width="40%" align="left"><a accesskey="p" href="ch05s05s03.html">Prev</a>┬á</td>
  100.           <td width="20%" align="center">
  101.             <a accesskey="u" href="ch05s05.html">Up</a>
  102.           </td>
  103.           <td width="40%" align="right">┬á<a accesskey="n" href="ch05s06.html">Next</a></td>
  104.         </tr>
  105.         <tr>
  106.           <td width="40%" align="left" valign="top">5.3.┬áLaplace┬á</td>
  107.           <td width="20%" align="center">
  108.             <a accesskey="h" href="index.html">Home</a>
  109.           </td>
  110.           <td width="40%" align="right" valign="top">┬á6.┬áEnhance filters</td>
  111.         </tr>
  112.       </table>
  113.     </div>
  114.   </body>
  115. </html>
  116.