Operation Manual

To uniformly adjust the brightness of the image
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In the Levels area of the Adjustments inspector or the Adjustments pane of the Inspector
HUD, drag the Brightness Levels slider until the brightness of the entire image is correct.
Drag the Brightness
Levels slider to uniformly
adjust the brightness of
an image.
Selectively Adjusting Brightness with the Shadow Brightness Levels and Highlight
Brightness Levels Sliders
You can selectively adjust the brightness of the shadows and highlights in an image using
the Shadow Brightness Levels and Highlight Brightness Levels sliders.
To selectively adjust the brightness of the shadows and highlights in an image
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Drag the Shadow Brightness Levels and Highlight Brightness Levels sliders until the
brightness values of the shadows and highlights in the image are correct.
Drag the Shadow Brightness
Levels (on the left) and
Highlight Brightness Levels
sliders to selectively adjust
the brightness of an image.
Using Levels for Color Correction
A powerful way to color correct an image is to adjust the levels of each color channel in
the image. Adjusting the levels of each color channel is useful for removing color casts
in an image. It’s important to understand that you’re adjusting the colors of the image
within the RGB spectrum; therefore, you reduce yellow when you increase blue, you
reduce magenta when you increase green, and so on.
562 Chapter 17 Making Image Adjustments