So how do the Sharpen, Sharpen Edges, and Sharpen More commands compare with the Unsharp Mask filter? First of all, none of the preset commands permit you to vary the thickness of your edges, a function provided by Unsharp Mask's Radius option. Second, only the Sharpen Edges command can recognize high-contrast areas in an image. And third, all three commands are set in stone — you can't adjust their effects in any way (except, of course, to fade the filter after the fact). Figure 10-13 shows the effect of each preset command and the nearly equivalent effect created with the Unsharp Mask filter.
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