User Guide

Chapter 8 Editing
93
Brightness options
Adjusting image levels
You can use the Levels tool to precisely adjust the contrast and light levels in your images. You can
save your options as a preset for future use.
To adjust image levels:
1 In Edit Mode, on the Edit Panel, click Exposure, and then select the Levels tab.
2 Do one of the following:
• Set the options as described below to adjust the contrast and light levels manually.
•Click Auto and select a menu option to automatically adjust image properties.
3 Do one of the following:
•Click Apply to apply your changes and set options on another tab.
•Click Done to apply your changes and close the Levels tool.
•Click Cancel to discard all changes and close the tool.
Levels options
Brightness Specifies the image's light intensity. Moving the slider to the right lightens the
image, while moving the slider to the left darkens it.
Contrast Specifies the amount of difference between color and brightness in an image.
Moving the slider to the right darkens the shadowed areas in an image, while
moving the slider to the left brightens them.
Gamma Specifies the intensity of the light spectrum in an image. Moving the slider to
the right lightens the image, while moving the slider to the left darkens it.
Channel Specifies the brightness or color channel you want to adjust.
Shadows Specifies the blackpoint of an image.
Move the slider or type a number from 0 to 255 into the spin box to define the
blackest area of an image. As the value increases, the dark colored areas of the
image become darker.
Midtones Specifies the gamma correction in an image.
Move the slider or type a number from 0.00 to 2.00 into the spin box to set the
amount of gamma correction. Higher values make the image appear brighter,
while lower values make the image appear darker.