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Photoshop CS5下精确的完成复杂选择的方法

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Jun 01, 2016 pm 02:35 PM

使用“魔棒”工具，轻击鼠标就可以选择一个图像中的特定区域，轻松选择复杂的图像元素，再使用“调整边缘”命令，可以消除选区边缘周围的背景色，自动改变选区边缘并改进蒙版，使选择的图像更加的精确，甚至精确到细微的毛发部分。
（1）执行“文件”→“打开”命令，打开本书附带光盘\Chapter-01\“人物.jpg”文件，如图1-122所示。
Photoshop CS5下精确的完成复杂选择的方法
图1-122
（2）在工具箱中选择“魔棒”工具，设置其选项栏后，在灰色的背景上单击，选择背景图像，如图1-123所示。

图1-123
（3）按下键盘上的键，反转选区。并使用“矩形选框”工具，加选选择的人物部分的选区，如图1-124、1-125所示。
Photoshop CS5下精确的完成复杂选择的方法
图1-124

图1-125
（4）在“魔棒”工具的选项栏中，单击“调整边缘”按钮，打开“调整边缘”对话框，如图1-126所示。

图1-126
（5）在对话框中，单击“视图”右侧的三角按钮，弹出其下拉列表，可看到默认状态下“白底”选项为选择状态，如图1-127所示。
Photoshop CS5下精确的完成复杂选择的方法
图1-127
（6）按下键盘上的键，可循环切换视图，以便更加清晰的观察选取的图像，如图1-128、1-129所示。完毕后选择默认的视图。

图1-128

图1-129
（7）在对话框中的“边缘检测”栏中设置“半径”值为70，其值越大，边缘宽展区域越大，效果如图1-130所示。
Photoshop CS5下精确的完成复杂选择的方法
图1-130
（8）选择“边缘检测”栏中的“智能半径”复选框，系统将根据图像智能的调整扩展区域，如图1-131所示。

图1-131

（9）在这里将“半径”值为2，效果如图1-132所示。

图1-132
（10）在对话框中单击 Photoshop CS5下精确的完成复杂选择的方法 “缩放”工具，然后在视图中单击，将图像放大，如图1-133所示。再使用“抓手”工具，查看头发部分的图像，如图1-134所示。

图1-133

图1-134
（10）单击“调整半径”工具，然后在视图中未去除背景图像的位置单击，手动扩展区域，如图1-135所示。
Photoshop CS5下精确的完成复杂选择的方法
图1-135
（11）依照以上方法，手动扩展头发缝隙的区域，如图1-136所示。

图1-136
（12）接下来在“调整边缘”栏中设置各项参数，使头发的抠取更加自然，如图1-137所示。

图1-137
（13）在“输出”栏中。单击的“输出到”右侧的三角按钮，在弹出的菜单中选择“新建带有图层蒙版的图层”选项，如图1-138所示。
Photoshop CS5下精确的完成复杂选择的方法
图1-138
（14）完毕后单击“确定”按钮，调整图像的边缘。同时在“图层”调板中可以看到新建的带有图层蒙版的图层，如图1-139、1-140所示。

图1-139

图1-140
（15）打开本书附带光盘\Chapter-01\“背景.psd”文件，将去除背景的人物图像拖动到此文档中，完成实例的制作，如图1-141所示。
Photoshop CS5下精确的完成复杂选择的方法
图1-141

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