Operation Manual

Adjusting Brightness in the Image
You can adjust the Brightness parameter when you want to lighten or darken your image.
When you adjust brightness, the brightness values of the midtone pixels in the image
change the most. You can change the brightness of the image temporarily to see how
the adjustment affects details in the shadows, midtones, and highlights. For more precise
control over the range of tonality in the image, consider using the Levels adjustment
controls. For more information about adjusting levels, see Working with the Levels Controls.
Before Brightness adjustment After Brightness adjustment
To adjust brightness in an image
1 Select an image.
2 In the Exposure area of the Adjustments inspector or the Adjustments pane of the
Inspector HUD, adjust the Brightness parameter by doing one of the following:
• Drag the Brightness slider.
• Click the left or right arrow in the Brightness value slider to change the brightness of
the image by 5 percent increments, or drag in the value field.
• Double-click the number in the Brightness value slider, then enter a value from –2.0 to
2.0 and press Return.
Use the Brightness slider
and value slider to lighten
and darken the image.
A value below 0.0 decreases the brightness of the image. A value greater than 0.0 increases
the brightness of the image. The brightness of the image is updated as you change the
parameter value.
512 Chapter 17 Making Image Adjustments