文档介绍：376 both will feel familiar as their controls are Once your sharpening layer is created,
centered around the Amount and Radius you’ll need to zoom to 100 percent if you are
sliders. performing creative sharpening or if you will
PERFECT DIGITAL PHOTOGRAPHY be sharpening images for the Web or screen. If
Both Smart Sharpen and Unsharp Mask
you’re sharpening for print, you’re best served
can be used for output sharpening or creative
by zooming to 50 percent. Th is gives you a
sharpening, when coupled with a layer mask.
better approximation of how the sharpening
Before you begin the sharpening process, it
in your photo will look on the printed page,
is important that you take two preparatory
where paper-absorbing ink causes edges to blur
steps:
slightly and reduce the overall image sharpness.
Step 1 Create a separate sharpening layer.
I’ll talk specifi cally about output
Step 2 Zoom in to 50- or 100-percent view.
sharpening after introducing the two
Working in Photoshop gives you sharpening tools, Unsharp Mask and Smart
fewer options for undoing or refi ning Sharpen.
your corrections. Unless you’ve stored
your corrections on a separate layer, your Unsharp Mask
corrections are permanently applied once you Let’s begin with Unsharp Mask (Filter >
save and close a document. For that reason, Sharpen > Unsharp Mask), a time-tested
be sure to create a separate sharpening layer sharpening favorite. Two of the three controls
to serve as an escape route in case you change found in Unsharp Mask should be familiar to
your mind later in the process. you from sharpening in Lightroom: Amount
and Radius. Both perform the same tasks here
If you are working on a document
as they do in Lightroom.
without any layers, you can duplicate your
Background layer by pressing cmd-j (Mac) or Th e navigation within the Unsharp
ctrl-j (Windows) and using this new layer Mask dialog is slightly diff erent from tha