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3、Working with Bitmap Images

 
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1、可以使用工具栏中的scale tool、菜单中的modify-transform-scale或属性面版中的图片大小三样中的任意一样来设置图片的大小。处理前先在layer面版中选中图片。

 

2、选中文档,然后在属性面版中点击document属性的fit canvas可以使文档缩放到图片缩放图片大小。

 

3、工具栏中的9-slice scale tool是把图片分九块,当缩放图片时只变化中间的一块,其余八块不变。在一些中间有目标对像而四周环境很接近的情况下,把目标对像放到中间外八块的任意一块中,然后可以任意缩放图片而让对像不变形。

 

4、建立选区时可以先用魔术捧工具选择大概,然后再放大图像用套索工具把细致的地方处理。选择过程中按alt是减去选区,按shift是增加选区。建立好选区后,可以使用select-feather羽化选区。最后可以使用select - save selection的方式保存选区,以防错误调失选区后可以恢复。

 

5、转成黑白图的方法:选中选区,点击菜单commands-creative-grayscale。点击后,图片变为黑白,另外在属性区的filter中有一个hue/saturation选项,可以调节。

6、属性面版中的filter下有一个photoshop effect,它就是ps中的图层样式。

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