Operation Manual

• Click the left or right arrow in the Radius value slider, or drag in the value field.
The left arrow limits the Devignette adjustment to the edges of the image, and the
right arrow moves the Devignette adjustment toward the center point of the image.
• Double-click the number in the Radius value slider, then enter a value from 0.0 to 2.0
and press Return.
Use the Radius slider and value
slider to adjust the size of the
area over which the Devignette
adjustment is applied.
The vignette is removed from the image.
For more information about applying a vignette to an image, see Working with the
Vignette Controls.
You can also brush the Devignette adjustment on selected parts of an image. For more
information, see Making Brushed Adjustments.
Working with the Straighten Controls
When you shoot photos, environmental conditions often make it difficult to frame an
image that is level in relation to the horizon—either real or virtual. In Aperture, you can
straighten an image so that the horizon in the image is parallel to the bottom and top
edges.
Before Straighten adjustment After Straighten adjustment
You can use two different methods to straighten your images. You can use either the
Straighten tool or the Straighten adjustment controls. However, you may find it most
efficient to use the Straighten tool to quickly level the image so that it’s roughly straight
and then use the Straighten controls for more precision.
497Chapter 17 Making Image Adjustments