Operation Manual

4 Position the eyedropper over the darkest pixels in the image, then click.
The sampled pixels are used to set the black point in the image.
You use the Gray Point eyedropper to automatically set the gray point in the image.
Before Gray Point Curves adjustment After Gray Point Curves adjustment
To set the gray point in an image
1 Select an image.
2 If the Curves controls are not shown in the Adjustments inspector or the Adjustments
pane of the Inspector HUD, choose Curves from the Adjustments pop-up menu.
548 Chapter 17 Making Image Adjustments