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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>3.5.4.┬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 V1.64.1" />
  10.     <link rel="home" href="index.html" title="GIMP User Manual" />
  11.     <link rel="up" href="ch03s03s05.html" title="3.5.┬áColor Tools" />
  12.     <link rel="previous" href="ch03s03s05s03.html" title="3.5.3.┬áColorize Tool" />
  13.     <link rel="next" href="ch03s03s05s05.html" title="3.5.5.┬áThreshold Tool" />
  14.   </head>
  15.   <body>
  16.     <div class="navheader">
  17.       <table width="100%" summary="Navigation header">
  18.         <tr>
  19.           <th colspan="3" align="center">3.5.4.┬áBrightness-Contrast tool</th>
  20.         </tr>
  21.         <tr>
  22.           <td width="20%" align="left"><a accesskey="p" href="ch03s03s05s03.html">Prev</a>┬á</td>
  23.           <th width="60%" align="center">3.5.┬áColor Tools</th>
  24.           <td width="20%" align="right">┬á<a accesskey="n" href="ch03s03s05s05.html">Next</a></td>
  25.         </tr>
  26.       </table>
  27.       <hr />
  28.     </div>
  29.     <div class="sect3" lang="en" xml:lang="en">
  30.       <div class="titlepage">
  31.         <div>
  32.           <div>
  33.             <h4 class="title"><a id="gimp-tool-brightness-contrast"></a>3.5.4.┬áBrightness-Contrast tool</h4>
  34.           </div>
  35.         </div>
  36.         <div></div>
  37.       </div>
  38.       <div class="mediaobject">
  39.         <img src="../images/toolbox/tools-brightness.png" />
  40.       </div>
  41.       <p>
  42.     The Brightness-Contrast tool adjusts the brightness and contrast levels
  43.     for the active layer or selection.  Levels and Curve tools are more
  44.     efficient. 
  45.   </p>
  46.       <div class="simplesect" lang="en" xml:lang="en">
  47.         <div class="titlepage">
  48.           <div>
  49.             <div>
  50.               <h5 class="title"><a id="id2957143"></a>Activate Tool</h5>
  51.             </div>
  52.           </div>
  53.           <div></div>
  54.         </div>
  55.         <p>
  56.       The Brightness-Contrast Tool can be called from the image-menu:
  57.       <span class="guimenuitem"><span class="accel">T</span>ools</span>/
  58.       <span class="guimenuitem"><span class="accel">C</span>olor
  59.         Tools</span>/<span class="guimenuitem">B<span class="accel">r</span>ightness-Contrast
  60.         .</span> 
  61.     </p>
  62.       </div>
  63.       <div class="simplesect" lang="en" xml:lang="en">
  64.         <div class="titlepage">
  65.           <div></div>
  66.           <div></div>
  67.         </div>
  68.         <div class="variablelist">
  69.           <p class="title">
  70.             <b>Options</b>
  71.           </p>
  72.           <dl>
  73.             <dt>
  74.               <span class="term">Brightness</span>
  75.             </dt>
  76.             <dd>
  77.               <p>
  78.            This slider sets a negative (to darken) or positive (to brighten) value for the brightness, 
  79.            decreasing or increasing bright tones.
  80.          </p>
  81.             </dd>
  82.             <dt>
  83.               <span class="term">Contrast</span>
  84.             </dt>
  85.             <dd>
  86.               <p>
  87.           This slider sets a negative (to decrease) or positive (to
  88.           increase) value for the contrast.
  89.         </p>
  90.             </dd>
  91.             <dt>
  92.               <span class="term">Preview</span>
  93.             </dt>
  94.             <dd>
  95.               <p>
  96.            The Preview checkbox makes all changes to the brightness and contrast dynamically so 
  97.            that the new level settings can be viewed immediately.
  98.          </p>
  99.             </dd>
  100.           </dl>
  101.         </div>
  102.       </div>
  103.     </div>
  104.     <div class="navfooter">
  105.       <hr />
  106.       <table width="100%" summary="Navigation footer">
  107.         <tr>
  108.           <td width="40%" align="left"><a accesskey="p" href="ch03s03s05s03.html">Prev</a>┬á</td>
  109.           <td width="20%" align="center">
  110.             <a accesskey="u" href="ch03s03s05.html">Up</a>
  111.           </td>
  112.           <td width="40%" align="right">┬á<a accesskey="n" href="ch03s03s05s05.html">Next</a></td>
  113.         </tr>
  114.         <tr>
  115.           <td width="40%" align="left" valign="top">3.5.3.┬áColorize Tool┬á</td>
  116.           <td width="20%" align="center">
  117.             <a accesskey="h" href="index.html">Home</a>
  118.           </td>
  119.           <td width="40%" align="right" valign="top">┬á3.5.5.┬áThreshold Tool</td>
  120.         </tr>
  121.       </table>
  122.     </div>
  123.   </body>
  124. </html>
  125.