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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>2.2.┬áQuickMask</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="ch02s02.html" title="2.┬áImage Window" />
  12.     <link rel="previous" href="ch02s02.html" title="2.┬áImage Window" />
  13.     <link rel="next" href="ch03.html" title="Chapter┬á3.┬áToolbox" />
  14.   </head>
  15.   <body>
  16.     <div class="navheader">
  17.       <table width="100%" summary="Navigation header">
  18.         <tr>
  19.           <th colspan="3" align="center">2.2.┬áQuickMask</th>
  20.         </tr>
  21.         <tr>
  22.           <td width="20%" align="left"><a accesskey="p" href="ch02s02.html">Prev</a>┬á</td>
  23.           <th width="60%" align="center">2.┬áImage Window</th>
  24.           <td width="20%" align="right">┬á<a accesskey="n" href="ch03.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-image-window-qmask-button"></a>2.2.┬áQuickMask</h3>
  34.           </div>
  35.         </div>
  36.         <div></div>
  37.       </div>
  38.       <a id="id2945908" class="indexterm"></a>
  39.       <div class="mediaobject">
  40.         <img src="../images/dialogs/dialogs-channel-quickmask.png" />
  41.       </div>
  42.       <p>
  43.     The <a href="ch03s03s02.html" title="3.2.┬áSelection Tools">selection tools</a> 
  44.         sometimes show their limits when they have to be used for doing 
  45.         complex drawing selection, as progressive. In this case, 
  46.         using the QuickMask is a good idea which can give very good results.
  47.   </p>
  48.       <div class="simplesect" lang="en" xml:lang="en">
  49.         <div class="titlepage">
  50.           <div>
  51.             <div>
  52.               <h4 class="title"><a id="id2945936"></a>Overview</h4>
  53.             </div>
  54.           </div>
  55.           <div></div>
  56.         </div>
  57.         <div class="variablelist">
  58.           <dl>
  59.             <dt></dt>
  60.             <dd>
  61.               <p>
  62.             To activate the QuickMask click on the left-bottom button 
  63.                         showed in red on the screeshot above or select in the image window menu 
  64.                         <span class="guimenuitem"><span class="accel">S</span>elect/Toggle <span class="accel">Q</span>uickMask</span>. 
  65.                         It can also be activated by using <span><b class="keycap">Shift+Q</b></span> shortcut.
  66.           </p>
  67.               <p>
  68.             This command generate a temporary 8-bit (0-255) channel, on which the 
  69.                         progressive selection work is stored. If a selection is already present 
  70.                         the mask is initialized with the content of the selection. 
  71.                         Once QuickMask has been activated, the image is covered by a 
  72.                         red semi-transparent veil. This one representes the non-selected pixels. 
  73.                         Any <a href="ch03s03s03.html" title="3.3.┬áPaint Tools">paint tool</a> can be used 
  74.                         to create the selection on the QuickMask. They should use only greyscale color, 
  75.                         conforming the channel properties, white enabling to define the future selected place. 
  76.                         The selection will be displayed as soon as the QuickMask will be toggled 
  77.                         but its temporary channel will not be available anymore.
  78.           </p>
  79.               <div class="tip" style="margin-left: 0.5in; margin-right: 0.5in;">
  80.                 <table border="0" summary="Tip">
  81.                   <tr>
  82.                     <td rowspan="2" align="center" valign="top" width="25">
  83.                       <img alt="[Tip]" src="../images/tip.png" />
  84.                     </td>
  85.                     <th align="left">Tip</th>
  86.                   </tr>
  87.                   <tr>
  88.                     <td colspan="2" align="left" valign="top">
  89.             To save in a channel the selection done with the Quickmask select in the image menu
  90.             <span class="guimenuitem">Select/Save to Channel</span></td>
  91.                   </tr>
  92.                 </table>
  93.               </div>
  94.               <p>
  95.             You can learn more on <a href="ch04s03s03.html" title="3.3.┬áQuick Mask">Quickmask</a> 
  96.                         and <a href="ch04s03s02.html" title="3.2.┬áSelection masks">Selection masks</a> 
  97.                         in the section dedicated to the channel dialog.
  98.           </p>
  99.             </dd>
  100.           </dl>
  101.         </div>
  102.       </div>
  103.       <div class="simplesect" lang="en" xml:lang="en">
  104.         <div class="titlepage">
  105.           <div>
  106.             <div>
  107.               <h4 class="title"><a id="id2946009"></a>Usage</h4>
  108.             </div>
  109.           </div>
  110.           <div></div>
  111.         </div>
  112.         <p></p>
  113.         <div class="procedure">
  114.           <ol type="1">
  115.             <li>
  116.               Open an image or begin a new document;
  117.             </li>
  118.             <li>
  119.               Activate the Quickmask using the left-bottom button in the image window. 
  120.                 If a selection is present the mask is initialized with the content of the selection;
  121.       </li>
  122.             <li>
  123.               Choose a drawing tool and use it with greyscale colors on the QuickMask;
  124.       </li>
  125.             <li>
  126.               Deactivate the Quickmask using the left-bottom button in the image window;
  127.       </li>
  128.           </ol>
  129.         </div>
  130.       </div>
  131.     </div>
  132.     <div class="navfooter">
  133.       <hr />
  134.       <table width="100%" summary="Navigation footer">
  135.         <tr>
  136.           <td width="40%" align="left"><a accesskey="p" href="ch02s02.html">Prev</a>┬á</td>
  137.           <td width="20%" align="center">
  138.             <a accesskey="u" href="ch02s02.html">Up</a>
  139.           </td>
  140.           <td width="40%" align="right">┬á<a accesskey="n" href="ch03.html">Next</a></td>
  141.         </tr>
  142.         <tr>
  143.           <td width="40%" align="left" valign="top">2.┬áImage Window┬á</td>
  144.           <td width="20%" align="center">
  145.             <a accesskey="h" href="index.html">Home</a>
  146.           </td>
  147.           <td width="40%" align="right" valign="top">┬áChapter┬á3.┬áToolbox</td>
  148.         </tr>
  149.       </table>
  150.     </div>
  151.   </body>
  152. </html>
  153.