用Photoshop把知了“挪”到树叶上

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<P style="TEXT-INDENT: 2em">先看一下效果： </P>
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<P style="TEXT-INDENT: 2em">制作工具：Photoshop CS </P>
<P style="TEXT-INDENT: 2em">制作过程： </P>
<P style="TEXT-INDENT: 2em">1、打开一幅素材图片，如图01所示。 </P>
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<P style="TEXT-INDENT: 2em" align=center>图01</P>
<P style="TEXT-INDENT: 2em">2、打开通道面板，由于蓝色通道的黑白对比较强，翅膀轮廓明显，所以选择蓝色通道进行操作。复制蓝色通道为蓝副本通道，如图02所示。 </P>
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<P style="TEXT-INDENT: 2em" align=center>图02</P>
<P style="TEXT-INDENT: 2em">3、按Ctrl+I键把“蓝副本通道”进行反相处理，效果如图03所示。 </P>
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<P style="TEXT-INDENT: 2em" align=center>图03<BR>4、经过反相蝉变成白色的了，但是头部上面还有灰色。用多边形套索工具选择蝉的头部并进行曲线调整（把不需要透明的部分变成白色），为了做出来的效果自然，多边形套索工具要设置一个较大的羽化值30像素，选择消除锯齿选项，参数设置如图04所示，选区效果如图05所示。 </P>
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<P style="TEXT-INDENT: 2em" align=center>图04</P>
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<P style="TEXT-INDENT: 2em" align=center>图05</P>
<P style="TEXT-INDENT: 2em">5、接着用曲线工具调整它的明暗度，按Ctrl+M键弹出曲线对话框，参数设置如图06所示，调整后头部变为白色，如图07所示。 </P>
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<P style="TEXT-INDENT: 2em" align=center>图06</P>
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<P style="TEXT-INDENT: 2em" align=center>图07<BR>6、选择工具箱中的画笔工具，调整蝉的头部的某些细节，画的过程中注意设置画笔的压力和大小，效果如图08所示。 </P>
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<P style="TEXT-INDENT: 2em" align=center>图08</P>
<P style="TEXT-INDENT: 2em">7、边缘发灰的部分，按Ctrl+L键弹出色阶对话框，用白色吸管吸取所选择区域内的灰色部分，如图09所示。 </P>
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<P style="TEXT-INDENT: 2em" align=center>图09</P>
<P style="TEXT-INDENT: 2em">8、蝉的翅膀必须保留那些半透明的部分。选择工具箱中的多边形套索工具，设置好羽化值，羽化值大小决定边缘的效果，所以数值可以适当设置大一点，用多边形套索工具选择小而薄的左翅膀，如图10所示。选择后，按Ctrl+L键打开色阶对话框做调整，使一些不太明显的浅灰部分变亮，一些深灰变暗，如图11所示。 </P>
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<P style="TEXT-INDENT: 2em" align=center>图10</P>
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<P style="TEXT-INDENT: 2em" align=center>图11<BR>9、用多边形套索工具选择蝉的腹部，如图12所示，依旧用色阶命令适当调整，局部的灰色用画笔工具将其涂抹掉，如图13所示。 </P>
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<P style="TEXT-INDENT: 2em" align=center>图12</P>
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<P style="TEXT-INDENT: 2em" align=center>图13</P>
<P style="TEXT-INDENT: 2em">10、按Ctrl键单击蓝副本通道，把它载入选区，回到图层面板，如图14所示，在背景图层上按Ctrl+J键将蝉拷贝到新图层，形成图层1，效果如图15所示。 </P>
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<P style="TEXT-INDENT: 2em" align=center>图14</P>
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<P style="TEXT-INDENT: 2em" align=center>图15</P>
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<P style="TEXT-INDENT: 2em" align=center>图16</P>
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暗夜风雨

如果有图层显示就更好了