Enhanced Sharpening Using Smart Sharpen

The CS2 version of Photoshop introduced an enhanced sharpening process called Smart Sharpen. This process uses Amount and Radius values like USM and includes an additional Remove control (figure 4-35 ®). We nearly always select Gaussian Blur. You can also compensate for slight camera shake using the Motion Blur option; here, you need to experiment to find the appropriate Angle setting for the supposed angle of movement of the camera relative to the subject.

If you activate the Advanced option (A), you can sharpen shadows and highlights separately. The settings you make on the Sharpen tab then apply to the midtones.

Generally, you shouldn't sharpen as much in the shadows as in the highlights in order to avoid strengthening any noise artifacts that may already be present. If you are working on a bright sky with mainly soft edges, you should sharpen less there and concentrate on the midtones. We always check the More Accurate option, even if it costs us some computing power.

Smart Sharpen

Smart Sharpen

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Amount: 1152


Radius: 0.9


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Figure 4-35: The Smart Sharpen filter, available since Photoshop CS2

> Section 12.4 addresses Photoshop plugins, including some sharpening tools.

For more information on EasyS Plus see [69]

Focus Magic: www.focusmagic.com

FocusFixer: www.fixerlabs.com

FocalBlade: www.luminious-landscape. com/reviews/software/flocal blade.shtm l

If you want to sharpen selectively, you first have to select your image area using one of the Photoshop selection tools with a soft edge setting. (The Photoshop selection tools are explained in section 4.10, page 122.) You can then open the sharpening filter, which will then only affect the selected area. The best option is to sharpen on a separate layer using layer masks (as described in section 7.4).

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