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  4.   <head>
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  6.     <title>5.8.¬†Posterize</title>
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  13.     <link rel="up" href="gimp-tools-color.html" title="5.¬† Color Tools" />
  14.     <link rel="prev" href="gimp-tool-curves.html" title="5.7.¬† Curves" />
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  17.   <body>
  18.     <div class="navheader">
  19.       <table width="100%" summary="Navigation header">
  20.         <tr>
  21.           <th colspan="3" align="center">5.8.¬†Posterize</th>
  22.         </tr>
  23.         <tr>
  24.           <td width="20%" align="left"><a accesskey="p" href="gimp-tool-curves.html"><img src="../images/prev.png" alt="Prev" /></a>¬†</td>
  25.           <th width="60%" align="center">5.¬†
  26.     <span lang="en" xml:lang="en">Color Tools</span>
  27.   </th>
  28.           <td width="20%" align="right">¬†<a accesskey="n" href="gimp-tools-other.html"><img src="../images/next.png" alt="Next" /></a></td>
  29.         </tr>
  30.       </table>
  31.       <hr />
  32.     </div>
  33.     <div class="sect2" lang="en" xml:lang="en">
  34.       <div class="titlepage">
  35.         <div>
  36.           <div>
  37.             <h3 class="title"><a id="gimp-tool-posterize"></a>5.8.¬†Posterize</h3>
  38.           </div>
  39.           <div>
  40.             <div class="revhistory">
  41.               <table border="1" width="100%" summary="Revision history">
  42.                 <tr>
  43.                   <th align="left" valign="top" colspan="3">
  44.                     <b>Revision History</b>
  45.                   </th>
  46.                 </tr>
  47.                 <tr>
  48.                   <td align="left">Revision $Revision: 2429 $</td>
  49.                   <td align="left">2008-01-28</td>
  50.                   <td align="left">j.h</td>
  51.                 </tr>
  52.               </table>
  53.             </div>
  54.           </div>
  55.         </div>
  56.       </div>
  57.       <a id="id2647855" class="indexterm"></a>
  58.       <a id="id2647869" class="indexterm"></a>
  59.       <p>
  60.     This tool is designed to intelligently weigh the pixel colors of the
  61.     selection or active layer and reduce the number of colors while
  62.     maintaining a semblance of the original image characteristics.
  63.   </p>
  64.       <div class="sect3" lang="en" xml:lang="en">
  65.         <div class="titlepage">
  66.           <div>
  67.             <div>
  68.               <h4 class="title"><a id="id2647887"></a>5.8.1.¬†
  69.       <span lang="en" xml:lang="en">Activate the Tool</span>
  70.     </h4>
  71.             </div>
  72.           </div>
  73.         </div>
  74.         <p>
  75.       You can find this tool from the image-menu through:
  76.       <span class="guimenu">Tools</span> ‚Üí <span class="guisubmenu">Color Tools</span> ‚Üí <span class="guimenuitem">Posterize</span> or
  77.       <span class="guimenu">Colors</span> ‚Üí <span class="guimenuitem">Posterize</span>,
  78.     </p>
  79.         <p>
  80.       or by clicking the
  81.       <span class="guiicon">
  82.         <span class="inlinemediaobject"><img src="../images/toolbox/stock-tool-posterize-22.png" /></span>
  83.       </span>
  84.       icon in ToolBox, if Color Tools have been added to it.
  85.     </p>
  86.       </div>
  87.       <div class="sect3" lang="en" xml:lang="en">
  88.         <div class="titlepage">
  89.           <div>
  90.             <div>
  91.               <h4 class="title"><a id="id2647969"></a>5.8.2.¬†
  92.       <span lang="en" xml:lang="en">Options</span>
  93.     </h4>
  94.             </div>
  95.           </div>
  96.         </div>
  97.         <div class="figure">
  98.           <a id="id2647980"></a>
  99.           <p class="title">
  100.             <b>Figure¬†13.142.¬†
  101.         <span lang="en" xml:lang="en">Posterize tool options</span>
  102.       </b>
  103.           </p>
  104.           <div class="figure-contents">
  105.             <div class="mediaobject">
  106.               <img src="../images/toolbox/tools-posterize.png" alt="Posterize tool options" />
  107.             </div>
  108.           </div>
  109.         </div>
  110.         <br class="figure-break" />
  111.         <div class="variablelist">
  112.           <dl>
  113.             <dt>
  114.               <span class="term">Posterize Levels</span>
  115.             </dt>
  116.             <dd>
  117.               <p>
  118.             This slider and the input boxes with arrow-heads allow you
  119.             to set the number of levels (2-256) in each RGB channel that
  120.             the tool will use to describe the active layer. The total number
  121.             of colors is the combination of these levels. A level to 3
  122.             will give 2<sup>3</sup> = 8 colors.
  123.           </p>
  124.             </dd>
  125.             <dt>
  126.               <span class="term">Preview</span>
  127.             </dt>
  128.             <dd>
  129.               <p>
  130.             The Preview check-box makes all changes dynamically so that
  131.             they can be viewed straight away.
  132.           </p>
  133.             </dd>
  134.           </dl>
  135.         </div>
  136.       </div>
  137.       <div class="sect3" lang="en" xml:lang="en">
  138.         <div class="titlepage">
  139.           <div>
  140.             <div>
  141.               <h4 class="title"><a id="id2648059"></a>5.8.3.¬†
  142.       <span lang="en" xml:lang="en">Example</span>
  143.     </h4>
  144.             </div>
  145.           </div>
  146.         </div>
  147.         <div class="figure">
  148.           <a id="id2648072"></a>
  149.           <p class="title">
  150.             <b>Figure¬†13.143.¬†
  151.         <span lang="en" xml:lang="en">
  152.           Example for the ‚Äú<span class="quote">Posterize</span>‚Äù tool
  153.         </span>
  154.       </b>
  155.           </p>
  156.           <div class="figure-contents">
  157.             <div class="mediaobject">
  158.               <img src="../images/toolbox/posterize-ex.png" alt="Example for the Posterize tool" />
  159.               <div class="caption">
  160.                 <p>
  161.             Image posterized in 4 levels. The histogram shows the 4 levels
  162.             and 10 colors, counting black and white also.
  163.           </p>
  164.               </div>
  165.             </div>
  166.           </div>
  167.         </div>
  168.         <br class="figure-break" />
  169.       </div>
  170.     </div>
  171.     <div class="navfooter">
  172.       <hr />
  173.       <table width="100%" summary="Navigation footer">
  174.         <tr>
  175.           <td width="40%" align="left"><a accesskey="p" href="gimp-tool-curves.html"><img src="../images/prev.png" alt="Prev" /></a>¬†</td>
  176.           <td width="20%" align="center">
  177.             <a accesskey="u" href="gimp-tools-color.html">
  178.               <img src="../images/up.png" alt="Up" />
  179.             </a>
  180.           </td>
  181.           <td width="40%" align="right">¬†<a accesskey="n" href="gimp-tools-other.html"><img src="../images/next.png" alt="Next" /></a></td>
  182.         </tr>
  183.         <tr>
  184.           <td width="40%" align="left" valign="top"><a accesskey="p" href="gimp-tool-curves.html">5.7.¬†
  185.     <span lang="en" xml:lang="en">Curves</span>
  186.   </a>¬†</td>
  187.           <td width="20%" align="center">
  188.             <a accesskey="h" href="index.html">
  189.               <img src="../images/home.png" alt="Home" />
  190.             </a>
  191.           </td>
  192.           <td width="40%" align="right" valign="top">¬†<a accesskey="n" href="gimp-tools-other.html">6.¬†
  193.     <span lang="en" xml:lang="en">Other</span>
  194.   </a></td>
  195.         </tr>
  196.       </table>
  197.     </div>
  198.   </body>
  199. </html>
  200.