CHAPTER 2 (Web hosting control panel) IMPROVING DIGITAL PHOTOS Figure 2-32.
CHAPTER 2 IMPROVING DIGITAL PHOTOS Figure 2-32. The Unsharp Mask dialog Unlike Sharpen, which can only create fairly subtle changes, Unsharp Mask can easily go too far in sharpening an image (for instance, see Figure 2-33). In fact, I find that the default values are usually already too extreme, and I decrease them slightly. Figure 2-33 shows the effect of the default values on the kestrel; Figure 2-34 shows what happens if I decrease Amount to 4, and increase Threshold to prevent the sky from becoming grainy. Figure 2-33. Too much sharpening makes an image look grainy or can give it a halo!
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