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Apple Aperture 2 User Manual

Page 344

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344

Part III

Performing Image Adjustments

Understanding Color Channel Clipping Overlay Colors

The color of the color channel clipping overlay indicates which color channel or
combination of color channels are clipped. In addition, Aperture gives you the option
of choosing color or monochromatic overlays to indicate clipping.

To set the color channel clipping overlay color:

1

Choose Aperture > Preferences, or press Command-Comma (,), then click Appearance.

2

Choose one of the following options from the Clipping Overlay pop-up menu:

 To display the clipping overlays in shades of color: Choose Color.
 To display the clipping overlays in black, shades of gray, and white: Choose

Monochrome.

Color Overlay Descriptions

The following table lists the color overlays and the corresponding color channels that
have been clipped by the adjustment slider setting.

Adjustment

Color clipping information

Exposure slider
(Exposure adjustment controls)

Red: Indicates highlight clipping in the red color channel.

Green: Indicates highlight clipping in the green color channel.

Blue: Indicates highlight clipping in the blue color channel.

Yellow: Indicates highlight clipping in the red and green
color channels.

Pink: Indicates highlight clipping in the red and blue
color channels.

Cyan: Indicates highlight clipping in the blue and green
color channels.

White: Indicates highlight clipping in all three color channels.

Black: Indicates no highlight clipping in any color channel.

Recovery slider
(Exposure adjustment controls)

Red: Indicates highlight clipping in the red color channel.

Green: Indicates highlight clipping in the green color channel.

Blue: Indicates highlight clipping in the blue color channel.

Yellow: Indicates highlight clipping in the red and green color
channels.

Pink: Indicates highlight clipping in the red and blue color channels.

Cyan: Indicates highlight clipping in the blue and green
color channels.

White: Indicates highlight clipping in all three color channels.

Black: Indicates no highlight clipping in any color channel.