下面，作者将带各位读者一起用Photoshop制作一个大西瓜，
Photoshop制作可口的西瓜照片处理
。本教程主要介绍了扭曲滤镜中的几个工具和图层混合模式的应用。希望各位读者能举一反三，融会贯通。最终效果：
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新建图层，命名为：条纹。通过观察，这些条纹有点近似于拉长的椭圆形，那么我们就用椭圆形选框工具拖出如下形状，并填充RGB值为：20.71.2的深绿色。
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图（0）
为使该图形在滤镜有效范围中心位置。我们把它框选在中间。简便方法是：自由变换未取消的选区，按住ALT键拖拽到如下图：
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图（1）
滤镜-----扭曲-----波浪，参考如下设置。效果：
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图（2）
滤镜-----扭曲-----波纹，参考如下设置。
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图（3）
在同一图层中复制该图形到如下效果（或者复制图层后合层）。
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图（4）
新建图层，命名为花纹。执行滤镜-----渲染-----云彩。注意前景色为刚才设置的深绿色，被景色为白色。不然就不会出现下面的效果。
screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor='hand'; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" onclick="if(!this.resized) {return true;} else {window.open('/Article/UploadFiles/200602/200691651436876.gif');}" src="/Article/UploadFiles/200602/200691651436876.gif" nload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" border=0>
图（5）
执行滤镜----风格化-----查找边缘。
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图（6）
效果：
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图（7）
CTRL+M调整改图层对比度
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图（8）
如果效果不明显的话，再执行滤镜------画笔描边------强化边缘。使纹理清晰，同时忽略掉没用的部分。
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图（9） ]
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图（10）
新建图层，添加RGB值为：93.156.2的绿色。
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图（11）
设置花纹图层与下一图层的混合模式为正片叠底，花纹的颜色就叠加道了下面的图层上。
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图（12）
把要球面话的部分框选起来。使其在变化的正中央。
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图（13）
执行滤镜------扭曲-----球面化，设置数量为100%
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图（14）
分别对花纹和条纹扭曲。如果扭曲一次效果不够，就讲扭曲数值设置小些再扭曲。参考如下效果。
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图（15）
用圆形选框工具选择西瓜的形状后，反选，在所有图层上删除多余的部分。
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图（16）
[＋放大图片]
这时候的条纹有些不自然，我们再给条文添加点文理。
执行滤镜----艺术效果-----海棉，参考如下设置：
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图（17）
[＋放大图片]
新建图层，用来画西瓜比较亮的部位。建一图层，命名为白。设置画笔如下，画笔颜色为白色。
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图（18）
画出如下效果：
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图（19）
设置图层混合模式为叠加：
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图（20）
明亮了许多，同样方法画出暗的部分。
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图（21） [＋放大图片]
画上高光，用椭圆形选框工具画出如下选框，羽化较多像素。
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图（22）
填充白色，调整一下不透明度：
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图（23）
反光部分参照高光的画法。
下面画阴影部分，背景上建一图层，命名为投影。根据我们画的光照射的角度定位好投影的部分。用椭圆形选框工具画出：
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图（24）
羽化一定像素。让边缘模糊一些：
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图（25）
填充黑色，此时有可能看到图形怪怪的。原因是上几步做的亮部位和暗部位涂上的颜色图出了图形外边，删除就行了。
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图（26）
降低不透明度后
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图（27）
用橡皮菜工具设置如下后，擦除边缘部分如下
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图（28）
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图（29）
下面是画西瓜柄的截图，相信大家不用作者详细介绍了吧?
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图（30）
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图（31）
西瓜完成了，
电脑资料
《Photoshop制作可口的西瓜照片处理》(https://www.unjs.com)。screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor='hand'; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" onclick="if(!this.resized) {return true;} else {window.open('/Article/UploadFiles/200602/200691651438267.jpg');}" src="/Article/UploadFiles/200602/200691651438267.jpg" nload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" border=0>
图（32）
如果旁边再有个切开的，那就更生动了。下面就画切开的一块西瓜。
将刚才的西瓜存档后，弄个附件，重命名为切开的西瓜。去掉西瓜柄层（将高光、白层删除也可以）。用椭圆形选框工具画出如下形状后，逐个图层删除（按DELETE）：
screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor='hand'; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" onclick="if(!this.resized) {return true;} else {window.open('/Article/UploadFiles/200602/200691651439172.jpg');}" src="/Article/UploadFiles/200602/200691651439172.jpg" nload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" border=0>
图（33）
screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor='hand'; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" onclick="if(!this.resized) {return true;} else {window.open('/Article/UploadFiles/200602/200691651439915.jpg');}" src="/Article/UploadFiles/200602/200691651439915.jpg" nload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" border=0>
图（34）
新建瓜瓤层，填充RGB值为：254.91.91的红色。
screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor='hand'; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" onclick="if(!this.resized) {return true;} else {window.open('/Article/UploadFiles/200602/200691651439806.jpg');}" src="/Article/UploadFiles/200602/200691651439806.jpg" nload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" border=0>
图（35）
删除上半部分：
screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor='hand'; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" onclick="if(!this.resized) {return true;} else {window.open('/Article/UploadFiles/200602/200691651439360.jpg');}" src="/Article/UploadFiles/200602/200691651439360.jpg" nload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" border=0>
图（36）
按住CTRL键，单击该土层所在图层编辑区。使图形选取。向上移动选区：
screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor='hand'; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" onclick="if(!this.resized) {return true;} else {window.open('/Article/UploadFiles/200602/200691651439668.jpg');}" src="/Article/UploadFiles/200602/200691651439668.jpg" nload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" border=0>
图（37）
羽化一定像素。将西瓜瓤外圈部分用简单工具擦白。
screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor='hand'; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" onclick="if(!this.resized) {return true;} else {window.open('/Article/UploadFiles/200602/200691651439485.jpg');}" src="/Article/UploadFiles/200602/200691651439485.jpg" nload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" border=0>
图（38）
新建图层，用画西瓜皮花纹的办法画出西瓜瓤的花纹：
screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor='hand'; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" onclick="if(!this.resized) {return true;} else {window.open('/Article/UploadFiles/200602/200691651439604.jpg');}" src="/Article/UploadFiles/200602/200691651439604.jpg" nload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" border=0>
图（39）
删除瓤外多余部分。
screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor='hand'; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" onclick="if(!this.resized) {return true;} else {window.open('/Article/UploadFiles/200602/200691651439922.jpg');}" src="/Article/UploadFiles/200602/200691651439922.jpg" nload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" border=0>
图（40） [＋放大图片]
设置该层鱼西瓜瓤层和各模式为：颜色加深。
screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor='hand'; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" onclick="if(!this.resized) {return true;} else {window.open('/Article/UploadFiles/200602/200691651439120.jpg');}" src="/Article/UploadFiles/200602/200691651439120.jpg" nload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" border=0>
图（41）
瓤的顶部部位不会那么规整，所以要不规则删除一些。
screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor='hand'; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" onclick="if(!this.resized) {return true;} else {window.open('/Article/UploadFiles/200602/200691651439924.jpg');}" src="/Article/UploadFiles/200602/200691651439924.jpg" nload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" border=0>
图（42）
用加深和减淡工具擦出西瓜瓤上不均匀的颜色。
此时，已经有西瓜的样子了。下面画西瓜籽。新建图层，用钢笔工具勾出形状
screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor='hand'; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" onclick="if(!this.resized) {return true;} else {window.open('/Article/UploadFiles/200602/200691651439710.jpg');}" src="/Article/UploadFiles/200602/200691651439710.jpg" nload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" border=0>
图（43）
转换为选区，填充黑色，并擦出明暗：
screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor='hand'; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" onclick="if(!this.resized) {return true;} else {window.open('/Article/UploadFiles/200602/200691651439562.jpg');}" src="/Article/UploadFiles/200602/200691651439562.jpg" nload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" border=0>
图（44）
西瓜切开时，西瓜子不是都露出来的，所以我们复制多个西瓜籽后，调整方向、大小，并使其不规则分布。将该层命名为西瓜籽。可以加点枕状浮雕效果。
screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor='hand'; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" onclick="if(!this.resized) {return true;} else {window.open('/Article/UploadFiles/200602/200691651439418.jpg');}" src="/Article/UploadFiles/200602/200691651439418.jpg" nload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" border=0>
图（45）
切西瓜后，有的西瓜籽脱落了，留下了小坑。我们下面来刻画：
在瓜瓤层上钩出如下选区：CTRL+J复制该部分道新图层。
screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor='hand'; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" onclick="if(!this.resized) {return true;} else {window.open('/Article/UploadFiles/200602/200691651440342.jpg');}" src="/Article/UploadFiles/200602/200691651440342.jpg" nload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" border=0>
图（46）
screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor='hand'; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" onclick="if(!this.resized) {return true;} else {window.open('/Article/UploadFiles/200602/200691651440319.jpg');}" src="/Article/UploadFiles/200602/200691651440319.jpg" nload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" border=0>
图（47）
选取该该图形，擦出凹下去的明暗感觉：
screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor='hand'; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" onclick="if(!this.resized) {return true;} else {window.open('/Article/UploadFiles/200602/200691651440154.jpg');}" src="/Article/UploadFiles/200602/200691651440154.jpg" nload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" border=0>
图（48）
screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor='hand'; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" onclick="if(!this.resized) {return true;} else {window.open('/Article/UploadFiles/200602/200691651440428.jpg');}" src="/Article/UploadFiles/200602/200691651440428.jpg" nload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" border=0>
图（49）
描边，强调坑的边缘
screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor='hand'; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" onclick="if(!this.resized) {return true;} else {window.open('/Article/UploadFiles/200602/200691651440240.jpg');}" src="/Article/UploadFiles/200602/200691651440240.jpg" nload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" border=0>
图（50）
同西瓜籽一样分布，西瓜籽下面也加上几个坑。
screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor='hand'; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" onclick="if(!this.resized) {return true;} else {window.open('/Article/UploadFiles/200602/200691651440331.jpg');}" src="/Article/UploadFiles/200602/200691651440331.jpg" nload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" border=0>
图（51）
将该文件中的图层链接后拖进西瓜文件中。调整位置，将西瓜皮修整、模糊一下
screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor='hand'; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" onclick="if(!this.resized) {return true;} else {window.open('/Article/UploadFiles/200602/200691651440587.jpg');}" src="/Article/UploadFiles/200602/200691651440587.jpg" nload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" border=0>
图（52）
此时的切开西瓜感觉瓜瓤太细腻了，继续刻画：
添加一定数量的杂色screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor='hand'; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" onclick="if(!this.resized) {return true;} else {window.open('/Article/UploadFiles/200602/200691651440944.jpg');}" src="/Article/UploadFiles/200602/200691651440944.jpg" nload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" border=0>
图（53）
[＋放大图片]
框选西瓜瓤图层厚，用如下设置、不透明度低的画笔涂上少许的绿色。
screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor='hand'; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" onclick="if(!this.resized) {return true;} else {window.open('/Article/UploadFiles/200602/200691651440555.jpg');}" src="/Article/UploadFiles/200602/200691651440555.jpg" nload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" border=0>
图（54）
这样，西瓜就都完成了。
再看一下完成的图：
最终效果图
screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor='hand'; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" onclick="if(!this.resized) {return true;} else {window.open('/Article/UploadFiles/200602/200691651435734.jpg');}" src="/Article/UploadFiles/200602/200691651435734.jpg" nload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" border=0>
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