Apple Aperture 3.5 - Manual (Page 288)

Chapter 7 Make image adjustments 288
In some difficult cases, you can use the Black Point, Gray Point, and White Point eyedropper tools
in combination with points that you manually place on the tonal curve to neutralize a tint or
create the specific contrast you want in the image.
1 Select a photo.
2 If the Curves controls aren’t shown in the Adjustments inspector or the Adjustments pane of the
Inspector HUD, choose Curves from the Add Adjustment pop-up menu.
3 Do any of the following:
•
To set the black point in an image: Select the Black Point eyedropper tool to activate the Loupe,
position the eyedropper over the darkest pixels in the image, and click.
Click the Black Point
eyedropper button
to activate the Loupe.
67% resize factor