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As he is a hard edged surface against a flat background it should be fairly easy to select him using the Polygonal Lasso Tool.

因为相对于单一的背景，他有一个边缘分明的外观，所以，使用多边形套索工具选取他是十分容易的。

youdao

Make a new layer and select the "Polygonal lasso tool" and create an abstract shape that looks similar to the example below. it.

新建一个新图层然后选择“多边形套索工具”(Polygonal lasso tool)画出一个类似于下图的一个抽象的形状出来。

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