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<ul class="navigation"><li class="prev"><a accesskey="p" class="prev" href="WSfd1234e1c4b69f30ea53e41001031ab64-76efa.html" title="移动、隐藏选区或使选区反相"><img src="images/blank.gif" alt="上一页" width="17" height="17" /></a></li><li class="next"><a accesskey="n" class="next" href="WSfd1234e1c4b69f30ea53e41001031ab64-76e7a.html" title="按特定数量的像素扩展或收缩选区"><img src="images/blank.gif" alt="下一页" width="17" height="17" /></a></li></ul><div class="hierarchy"><a href="WSfd1234e1c4b69f30ea53e41001031ab64-7701a.html">选区和蒙版</a> /
     <a href="WSfd1234e1c4b69f30ea53e41001031ab64-76f0a.html"><b>调整像素选区</b></a> 
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                <h1>
                    手动调整选区
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                <br clear="both" /><div id="minitoc"><div class="t"><div class="b"><div class="l"><div class="r"><div class="bl"><div class="br"><div class="tl"><div class="tr"><div><h3>目录 [<a href="#" onclick="return toggleMiniToc('minitoc-links', this);" class="hideLink">隐藏</a>]</h3><ul id="minitoc-links"><li><p><a href="#WSfd1234e1c4b69f30ea53e41001031ab64-76eaa"><h1 class="topictitle1">添加到选区或选择附加选区</h1>
</a></p></li><li><p><a href="#WSfd1234e1c4b69f30ea53e41001031ab64-76e9a"><h1 class="topictitle1">从选区中减去</h1>
</a></p></li><li><p><a href="#WSfd1234e1c4b69f30ea53e41001031ab64-76e8a"><h1 class="topictitle1">仅选择与其它选区交叉的区域</h1>
</a></p></li></ul></div></div><br clear="both" /></div></div></div></div></div></div></div></div><br clear="both" /><div><div class="section"><p>可以使用选区工具在现有的像素选区中添加选区或减去选区。 </p>
<p>在选区中手动添加或减去选区之前，可能需要先将选项栏中的羽化和消除锯齿值设置为原始选区中使用的相同设置。</p>
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<div id="WSfd1234e1c4b69f30ea53e41001031ab64-76eaa" class="nochunk"><a name="WSfd1234e1c4b69f30ea53e41001031ab64-76eaa"></a><h3 class="topictitle3">添加到选区或选择附加选区</h3><div><ol><li><span>建立选区。</span></li>
<li><span>使用任何选区工具，执行下列任一选项: </span><ul><li><p>在选项栏中选择“添加到选区”选项 <img src="images/P_AddTo_Md_N.png" />，然后拖动以添加到选区。</p>
</li>
<li><p>按住 Shift 键并拖动以添加到选区。</p>
</li>
</ul>
</li>
</ol>
<div class="section"><p>在添加到选区时，指针旁边将出现一个加号。</p>
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<div id="WSfd1234e1c4b69f30ea53e41001031ab64-76e9a" class="nochunk"><a name="WSfd1234e1c4b69f30ea53e41001031ab64-76e9a"></a><h3 class="topictitle3">从选区中减去</h3><div><ol><li><span>建立选区。</span></li>
<li><span>使用任何选区工具，执行下列任一选项:</span><ul><li><p>在选项栏中选择“从选区中减去”选项 <img src="images/P_SubtractFrom_Md_N.png" />，然后拖动以使其与其它选区交叉。</p>
</li>
<li><p>按住 Alt 键 (Windows) 或 Option 键 (Mac OS) 键并拖动以减去另一个选区。</p>
</li>
</ul>
</li>
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<div class="section"><p>在从选区中减去时，指针旁边将出现一个减号。 </p>
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<div id="WSfd1234e1c4b69f30ea53e41001031ab64-76e8a" class="nochunk"><a name="WSfd1234e1c4b69f30ea53e41001031ab64-76e8a"></a><h3 class="topictitle3">仅选择与其它选区交叉的区域</h3><div><ol><li><span>建立选区。</span></li>
<li><span>使用任何选择工具，执行下列操作之一：</span><ul><li><p>在选项栏中选择“与选区交叉”选项 <img src="images/P_IntersectOverlap_Md_N.png" />，然后拖动。</p>
</li>
<li><p>按住 Alt+Shift 组合键 (Windows) 或 Option+Shift 组合键 (Mac OS)，然后在要选择的原始选区的部分上拖动。</p>
</li>
</ul>
</li>
</ol>
<div class="section"><p>当您选择交叉区域时，指针的旁边将出现一个“x”。 </p>
<div class="fignone"><img alt="" id="se_06" src="images/se_06.png" /><div class="figdesc">交叉选区</div><br /></div></div>
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