Apple Aperture 3.5 - Manual (Page 258)

Chapter 7 Make image adjustments 258
Straighten an image’s horizon
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 straighten your images using 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 and then use the Straighten controls for more precision.
Note: It’s a good idea to turn off zooming when straightening an image, so that the full image
fits within the Viewer. If an image is zoomed in to its actual size, you can turn off zooming
by clicking the Zoom Viewer button in the tool strip or the full-screen view toolbar (or by
pressing Z).
Rotate an image using the Straighten tool
Rotating an image with the Straighten tool is as simple as selecting the tool and dragging within
the image to make it straight. However, it’s important to understand that although the image
appears to enlarge as you rotate it, Aperture actually crops the image so that it fits within its
rectangular border without blank edges appearing on the sides.
1 Select a photo.
2 Select the Straighten tool in the tool strip or the full-screen view toolbar (or press G).
3 With the Straighten tool selected, drag within the image to rotate it either clockwise
or counterclockwise.
As you rotate the image, a yellow grid appears to help you make the horizon perfectly straight,
and the image is cropped to prevent gaps from appearing in the corners.
Drag within the image
to rotate it.
67% resize factor