Adobe AFTER EFFECTS CS3 PROFESSIONAL User Manual page 113

Note: The Crop tool is active immediately after you use the Straighten tool.
Crop selected images in Camera Raw
1 In the Camera Raw dialog box, select the Crop tool
To constrain your initial crop area to a specific aspect ratio, hold the mouse button down as you select the Crop tool,
and choose an option from the menu.
Drag in the preview image to draw the crop area box.
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3 To move, scale, or rotate the crop area, drag the crop area or its handles.
Click OK to crop the image.
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Note: To cancel the crop operation, press Esc with the Crop tool active, or click and hold the Crop tool button and choose
Clear Crop from the menu. To cancel the crop and close the Camera Raw dialog box without processing the camera raw
image file, click the Cancel button or deselect the Crop tool and press Esc.
Adjust sharpening in Camera Raw
The Sharpening Amount control in the Detail tab adjusts edge definition. The adjustment is a variation of Unsharp
Mask, which locates pixels that differ from surrounding pixels based on the threshold you specify and increases the
pixels' contrast by the amount you specify. When opening a camera raw image file, the Camera Raw plug-in calcu-
lates the threshold to use based on camera model, ISO, and exposure compensation.
Use the Apply Sharpening To preference in the Camera Raw preferences to specify whether sharpening is applied to
all images or just to previews.
Zoom the preview image to at least 100%.
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2 Increase the Amount value to increase sharpening. A value of zero turns off sharpening. In general, set Amount
to a lower value for cleaner images.
If you don't plan to edit the image extensively in Photoshop, use the Camera Raw sharpening feature. If you do plan
to edit the image extensively in Photoshop, turn off Camera Raw sharpening. Then use the sharpening filters in
Photoshop as the last step after all other editing and resizing is complete.
Reducing noise in Camera Raw
The Noise Reduction section of the Detail tab has controls for reducing image noise, the extraneous visible artifacts
that degrade image quality. Image noise includes luminance (grayscale) noise, which makes an image look grainy,
and chroma (color) noise, which is usually visible as colored artifacts in the image. Photos taken with high ISO
speeds or less-sophisticated digital cameras can have noticeable noise.
The Luminance control reduces grayscale noise, and the Color control reduces chroma noise. Moving a slider to zero
turns off noise reduction.
When making Luminance Smoothing or Color Noise Reduction adjustments, first zoom in on the preview image for
a better view.
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