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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>5.4.┬áBrightness-Contrast tool</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 V1.66.1" />
  10.     <link rel="start" href="index.html" title="GIMP User Manual" />
  11.     <link rel="up" href="ch03s05.html" title="5.┬áColor Tools" />
  12.     <link rel="prev" href="ch03s05s03.html" title="5.3.┬áColorize Tool" />
  13.     <link rel="next" href="ch03s05s05.html" title="5.5.┬áThreshold Tool" />
  14.   </head>
  15.   <body>
  16.     <div xmlns="" class="navheader">
  17.       <table width="100%" summary="Navigation header">
  18.         <tr>
  19.           <th colspan="3" align="center" id="chaptername">5.┬áColor Tools</th>
  20.         </tr>
  21.         <tr>
  22.           <td width="20%" align="left"><a accesskey="p" href="ch03s05s03.html">Prev</a>┬á</td>
  23.           <th width="60%" align="center" id="sectionname">5.4.┬áBrightness-Contrast tool</th>
  24.           <td width="20%" align="right">┬á<a accesskey="n" href="ch03s05s05.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="gimp-tool-brightness-contrast"></a>5.4.┬áBrightness-Contrast tool</h3>
  34.           </div>
  35.         </div>
  36.       </div>
  37.       <div class="mediaobject">
  38.         <img src="../images/toolbox/tools-brightness.png" />
  39.       </div>
  40.       <p>
  41.     The Brightness-Contrast tool adjusts the brightness and contrast levels
  42.     for the active layer or selection.  Levels and Curve tools are more
  43.     efficient. 
  44.   </p>
  45.       <div class="simplesect" lang="en" xml:lang="en">
  46.         <div class="titlepage">
  47.           <div>
  48.             <div>
  49.               <h4 class="title"><a id="id3443456"></a>Activate Tool</h4>
  50.             </div>
  51.           </div>
  52.         </div>
  53.         <p>
  54.       The Brightness-Contrast Tool can be called from the image-menu:
  55.       <span class="guimenuitem"><span class="accel">T</span>ools</span>/
  56.       <span class="guimenuitem"><span class="accel">C</span>olor
  57.         Tools</span>/<span class="guimenuitem">B<span class="accel">r</span>ightness-Contrast
  58.         .</span> 
  59.     </p>
  60.       </div>
  61.       <div class="simplesect" lang="en" xml:lang="en">
  62.         <div class="titlepage">
  63.           <div>
  64.             <div>
  65.               <h4 class="title"><a id="id3443499"></a>Options</h4>
  66.             </div>
  67.           </div>
  68.         </div>
  69.         <div class="variablelist">
  70.           <dl>
  71.             <dt>
  72.               <span class="term">Brightness</span>
  73.             </dt>
  74.             <dd>
  75.               <p>
  76.            This slider sets a negative (to darken) or positive (to brighten) value for the brightness, 
  77.            decreasing or increasing bright tones.
  78.          </p>
  79.             </dd>
  80.             <dt>
  81.               <span class="term">Contrast</span>
  82.             </dt>
  83.             <dd>
  84.               <p>
  85.           This slider sets a negative (to decrease) or positive (to
  86.           increase) value for the contrast.
  87.         </p>
  88.             </dd>
  89.             <dt>
  90.               <span class="term">Preview</span>
  91.             </dt>
  92.             <dd>
  93.               <p>
  94.            The Preview checkbox makes all changes to the brightness and 
  95.            contrast dynamically so that the new level settings can be viewed 
  96.            immediately.
  97.          </p>
  98.             </dd>
  99.           </dl>
  100.         </div>
  101.       </div>
  102.     </div>
  103.     <div class="navfooter">
  104.       <hr />
  105.       <table width="100%" summary="Navigation footer">
  106.         <tr>
  107.           <td width="40%" align="left"><a accesskey="p" href="ch03s05s03.html">Prev</a>┬á</td>
  108.           <td width="20%" align="center">
  109.             <a accesskey="u" href="ch03s05.html">Up</a>
  110.           </td>
  111.           <td width="40%" align="right">┬á<a accesskey="n" href="ch03s05s05.html">Next</a></td>
  112.         </tr>
  113.         <tr>
  114.           <td width="40%" align="left" valign="top">5.3.┬áColorize Tool┬á</td>
  115.           <td width="20%" align="center">
  116.             <a accesskey="h" href="index.html">Home</a>
  117.           </td>
  118.           <td width="40%" align="right" valign="top">┬á5.5.┬áThreshold Tool</td>
  119.         </tr>
  120.       </table>
  121.     </div>
  122.   </body>
  123. </html>
  124.