Graphics Programs Reference
In-Depth Information
For the most natural looking results, you usually won't want to make the pupils
appear overly black.
Caution
3. Move the cursor to any other red eyes and repeat.
4. Use the sliders in the Red Eye brick to refine the corrections. You can modify the size
using the radius slider or the opacity of the correction by using the sensitivity slider.
Using the Adjustments Inspector
Aperture offers a comprehensive set of tools to optimize your images that we cover individually
and in depth in this section. But there are also some commonalities among all the adjustments
that we cover first, such as setting the preferences for clipping, creating new versions for adjust-
ments, working with histograms, controlling which adjustments appear in the inspector, and
brushing adjustments in and out of an image.
Setting Preferences for making adjustments
Before we look at using the actual adjustments, we need to set some preferences that control
several aspects of the adjustment tools. To do this, follow these steps:
1. Open the Preferences dialog by choosing Aperture
Preferences
Advanced Tab.
2. Specify the Hot and Cold area threshold settings. These settings determine what
areas Aperture will show as clipped (so dark or light that there are no visible details)
when you choose View
Highlight Hot and Cold Areas. (Hot areas — highlights lacking
detail — appear with a red overlay; Cold areas — shadows lacking detail — appear with
a blue overlay as shown in Figure 6.6.) Highlighting the clipped areas that way makes it
easy to see if an adjustment is too extreme and is causing the image to lose important
details. The numbers that you set in Preferences establish whether the highlights and
shadows must be completely clipped before they appear as Hot or Cold areas, or
whether the overlay warning appears when an area is almost clipped. We prefer to set
our Hot Area threshold at 100 percent and our Cold Area threshold at 0 percent, but for
some outputs such as slide shows, you might prefer to set those numbers to be less
extreme so that you don't run the risk of the image appearing too contrasty.
3. Set the Auto Adjust Black Clip and Auto Adjust White Clip settings. We prefer to set
the Black Clip to 0.01 and the White clip to 0.00 rather than the default settings of 0.10.
 
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