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Δευτέρα, 14 Ιουνίου 2010

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Applying sharpening

Photoshop offers several sharpening filters, but when an image is in raw format it’s often a good idea to use the Sharpening controls in Camera Raw. The Sharpening controls are in the Detail panel. To see the effect of sharpening in the preview panel, you must view the image at 100% or greater.
1 Double-click the Zoom tool (Image) on the left side of the toolbar to zoom in to 100%. Then select the Hand tool (Image), and pan the image to see the cross at the top of the mission tower.
2 Click the Detail button (Image) to open the Detail panel.
Images
The Amount slider determines how much sharpening Camera Raw applies. Typically, you’ll want to exaggerate the amount of sharpening at first, and then adjust it after you’ve set the other sliders.
3 Move the Amount slider to 100.
The Radius slider determines the pixel area Camera Raw analyzes as it sharpens the image. For most images, you’ll get the best results if you keep the radius low, even below one pixel. A larger radius can begin to cause an unnatural look, almost like a watercolor.
4 Move the Radius slider to 0.9.
The Detail slider determines how much detail you’ll see. Even when this slider is set to 0, Camera Raw performs some sharpening. Typically, you’ll want to keep the Detail setting relatively low.
5 Move the Detail slider to 25, if it isn’t already there.
The Masking slider determines which parts of the image Camera Raw sharpens. When the Masking value is high, Camera Raw sharpens only those parts of the image that have strong edges.
Image Tip
Press Alt (Windows) or Option (Mac) as you move the Masking slider to see what Camera Raw will sharpen.
6 Move the Masking slider to 61.
After you’ve adjusted the Radius, Detail, and Masking sliders, you can lower the Amount slider to finalize the sharpening.
7 Decrease the Amount slider to 70.
Images
Sharpening the image gives stronger definition to the details and edges. The Masking slider lets you target the sharpening effect to edges and lines in the image, so that artifacts don’t appear in unfocused or solid areas.
Image Tip
If you have difficulty seeing the effects of sharpening, change the zoom level to 100%.
When you make adjustments in Camera Raw, the original file data is preserved. Your adjustment settings for the image are stored either in the Camera Raw database file or in “sidecar” XMP files that accompany the original image file in the same folder. These XMP files retain the adjustments you made in Camera Raw when you move the image file to a storage medium or another computer.