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Apple Aperture 3.5 User Manual

Page 221

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Chapter 7

Make image adjustments

221

For more information, see

Perform adjustments in full-screen view

on page 238.

Histogram

Double-click

the top of an

adjustment to

show and hide

the adjustment’s

controls.

Reset button

Add Adjustment

pop-up menu

Effects

pop-up menu

Adjustments

Auto Enhance

button

Adjustment Action

pop-up menu

Note: The adjustment controls in the Adjustments inspector and the Adjustments pane of the
Inspector HUD are dimmed when an audio clip or a video clip is selected.

Choose a histogram view
When you show the Adjustments inspector or the Adjustments pane of the Inspector HUD, a
histogram of the selected image’s luminance or color channels appears. The histogram displays a
graph of the brightness values in the image, from the blackest point to the whitest point. You can
adjust the histogram to show luminance; red, green, and blue (RGB) channels displayed together;
or separate red, green, and blue channels.

m

Choose a view option from the Histogram Options section of the Adjustment Action pop-up
menu

.

Note: The histogram updates in real time for images displayed in the Viewer and in full-screen
view, but is slightly delayed in the Book Layout Editor, the Webpage Editor, and the Light Table.
For information about how to interpret a histogram, see

Histograms overview

on page 344.

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