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  1. <?xml version="1.0" encoding="UTF-8" standalone="no"?>
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  4.   <head>
  5.     <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
  6.     <title>8.9.¬† Emboss</title>
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  12.     <link rel="start" href="index.html" title="GNU Image Manipulation Program" />
  13.     <link rel="up" href="filters-distort.html" title="8.¬† Distort Filters" />
  14.     <link rel="prev" href="plug-in-polar-coords.html" title="8.8.¬† Polar Coords" />
  15.     <link rel="next" href="plug-in-curve-bend.html" title="8.10.¬† Curve Bend" />
  16.   </head>
  17.   <body>
  18.     <div class="navheader">
  19.       <table width="100%" summary="Navigation header">
  20.         <tr>
  21.           <th colspan="3" align="center">8.9.¬†
  22.     <span lang="en" xml:lang="en">Emboss</span>
  23.   </th>
  24.         </tr>
  25.         <tr>
  26.           <td width="20%" align="left"><a accesskey="p" href="plug-in-polar-coords.html"><img src="../images/prev.png" alt="Prev" /></a>¬†</td>
  27.           <th width="60%" align="center">8.¬†
  28.     <span lang="en" xml:lang="en">Distort Filters</span>
  29.   </th>
  30.           <td width="20%" align="right">¬†<a accesskey="n" href="plug-in-curve-bend.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-emboss"></a>8.9.¬†
  40.     <span lang="en" xml:lang="en">Emboss</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: 2432 $</td>
  53.                   <td align="left">2006-12-04</td>
  54.                   <td align="left">j.h</td>
  55.                 </tr>
  56.               </table>
  57.             </div>
  58.           </div>
  59.         </div>
  60.       </div>
  61.       <a id="id2751674" class="indexterm"></a>
  62.       <a id="id2751691" 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="id2751700"></a>8.9.1.¬†
  68.       <span lang="en" xml:lang="en">Overview</span>
  69.     </h4>
  70.             </div>
  71.           </div>
  72.         </div>
  73.         <div class="figure">
  74.           <a id="id2751711"></a>
  75.           <p class="title">
  76.             <b>Figure¬†16.125.¬†
  77.         <span lang="en" xml:lang="en">Applying example for the Emboss filter</span>
  78.       </b>
  79.           </p>
  80.           <div class="figure-contents">
  81.             <div class="mediaobject">
  82.               <img src="../images/filters/examples/taj_orig.jpg" alt="Applying example for the Emboss filter" />
  83.               <div class="caption">
  84.                 <p>Original image</p>
  85.               </div>
  86.             </div>
  87.             <div class="mediaobject">
  88.               <img src="../images/filters/examples/distort-taj-emboss.jpg" alt="Applying example for the Emboss filter" />
  89.               <div class="caption">
  90.                 <p>Filter ‚Äú<span class="quote">Emboss</span>‚Äù applied</p>
  91.               </div>
  92.             </div>
  93.           </div>
  94.         </div>
  95.         <br class="figure-break" />
  96.         <p>
  97.       You can find this filter through
  98.       <span class="guimenu">Filters</span> ‚Üí <span class="guisubmenu">Distorts</span> ‚Üí <span class="guimenuitem"><span class="accel">E</span>mboss</span>.
  99.      </p>
  100.         <p>
  101.       You can use it only with RGB images. If your image is grayscale, it will
  102.       be grayed out in the menu.
  103.     </p>
  104.         <p>
  105.       It stamps and carves the active layer or selection, giving it relief
  106.       with bumps and hollows. Bright areas are raised and dark ones are
  107.       carved. You can vary the lighting.
  108.     </p>
  109.       </div>
  110.       <div class="sect3" lang="en" xml:lang="en">
  111.         <div class="titlepage">
  112.           <div>
  113.             <div>
  114.               <h4 class="title"><a id="id2751828"></a>8.9.2.¬†
  115.       <span lang="en" xml:lang="en">Options</span>
  116.     </h4>
  117.             </div>
  118.           </div>
  119.         </div>
  120.         <div class="figure">
  121.           <a id="id2751838"></a>
  122.           <p class="title">
  123.             <b>Figure¬†16.126.¬†
  124.         <span lang="en" xml:lang="en">
  125.           ‚Äú<span class="quote">Emboss</span>‚Äù filter options
  126.         </span>
  127.       </b>
  128.           </p>
  129.           <div class="figure-contents">
  130.             <div class="mediaobject">
  131.               <img src="../images/filters/emboss-options.png" alt="Emboss filter options" />
  132.             </div>
  133.           </div>
  134.         </div>
  135.         <br class="figure-break" />
  136.         <div class="variablelist">
  137.           <dl>
  138.             <dt>
  139.               <span class="term">Preview</span>
  140.             </dt>
  141.             <dd>
  142.               <p>
  143.             All your setting changes will appear in the Preview without
  144.             affecting the image until you click on <span class="guilabel">OK</span>.
  145.             Don't keep <span class="emphasis"><em>Do Preview</em></span> checked if your
  146.             computer is too much slow.
  147.           </p>
  148.             </dd>
  149.             <dt>
  150.               <span class="term">Function</span>
  151.             </dt>
  152.             <dd>
  153.               <p>
  154.             <span class="guilabel">Bumpmap</span>: Relief is smooth and colors are
  155.             preserved.
  156.           </p>
  157.               <p>
  158.             <span class="guilabel">Emboss</span>: It turns your image to grayscale
  159.             and relief is more marked, looking like metal.
  160.           </p>
  161.             </dd>
  162.             <dt>
  163.               <span class="term">Azimuth</span>
  164.             </dt>
  165.             <dd>
  166.               <p>
  167.             <span class="guilabel">Azimuth</span>: This is about lighting
  168.             according to the points of the compass (0 - 360). If you
  169.             suppose South is at the top of your image, then East (0¬∞) is
  170.             on the left. Increasing value goes counter-clockwise.
  171.           </p>
  172.             </dd>
  173.             <dt>
  174.               <span class="term">Elevation</span>
  175.             </dt>
  176.             <dd>
  177.               <p>
  178.             <span class="guilabel">Elevation</span>: That's height from
  179.             horizon (0¬∞), in principle up to zenith (90¬∞), but here up
  180.             to the opposite horizon (180¬∞).
  181.           </p>
  182.             </dd>
  183.             <dt>
  184.               <span class="term">Depth</span>
  185.             </dt>
  186.             <dd>
  187.               <p>
  188.             <span class="guilabel">Depth</span> Seems to be the distance of the
  189.             light source. Light decreases when value increases.
  190.           </p>
  191.             </dd>
  192.           </dl>
  193.         </div>
  194.       </div>
  195.     </div>
  196.     <div class="navfooter">
  197.       <hr />
  198.       <table width="100%" summary="Navigation footer">
  199.         <tr>
  200.           <td width="40%" align="left"><a accesskey="p" href="plug-in-polar-coords.html"><img src="../images/prev.png" alt="Prev" /></a>¬†</td>
  201.           <td width="20%" align="center">
  202.             <a accesskey="u" href="filters-distort.html">
  203.               <img src="../images/up.png" alt="Up" />
  204.             </a>
  205.           </td>
  206.           <td width="40%" align="right">¬†<a accesskey="n" href="plug-in-curve-bend.html"><img src="../images/next.png" alt="Next" /></a></td>
  207.         </tr>
  208.         <tr>
  209.           <td width="40%" align="left" valign="top"><a accesskey="p" href="plug-in-polar-coords.html">8.8.¬†
  210.     <span lang="en" xml:lang="en">Polar Coords</span>
  211.   </a>¬†</td>
  212.           <td width="20%" align="center">
  213.             <a accesskey="h" href="index.html">
  214.               <img src="../images/home.png" alt="Home" />
  215.             </a>
  216.           </td>
  217.           <td width="40%" align="right" valign="top">¬†<a accesskey="n" href="plug-in-curve-bend.html">8.10.¬†
  218.     <span lang="en" xml:lang="en">Curve Bend</span>
  219.   </a></td>
  220.         </tr>
  221.       </table>
  222.     </div>
  223.   </body>
  224. </html>
  225.