This filter will sharpen all the pixels on the layer.

该过滤器将所有的层锐化的像素。

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As a final step, we can use a high pass filter to sharpen the image and ensure if we are going to reduce the size to use it for the web we are not going to lose any information and definition.

作为最后一步，我要采用高通波滤镜来锐化这个照片，以便我们以后降低这个图片的尺寸时不失去图片里的细节。

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