Graphics Programs Reference
In-Depth Information
Choose the softness of the brush.
The softer the brush, the more the changes blend
into the background; the harder the brush, the more discrete and obvious the edges
are. Usually, we work with a soft to mostly soft brush.
l
Specify the strength of the adjustment.
The setting you use here controls the initial
strength of the change, but you can modify it after the fact in most cases by adjusting
the settings in the adjustment brick. In addition you can vary the strength setting for
each brushstroke to apply the effect in differing intensities.
l
Choose Detect Edges to have Aperture automatically limit your brushstrokes to
certain areas.
That way you can quickly modify one or more discrete areas of the
image without having to use an external editor and make a selection. When you use
Detect Edges, the size of the brush is smaller than it would be otherwise.
l
4.
Choose from several other controls located in the Action pop-up menu in the upper
right of the small dialog to control how the effect is applied.
Choose whether to apply the effect to the entire image, clear the effect completely,
or invert which areas show the effect.
l
The next group of options controls whether to apply an overlay to make it easier to
see where you've applied the effect.
l
The last group of controls limits the brush to applying the effect to just the highlights,
middle tones, or shadows.
l
When you take advantage of the option to brush an effect in or out, be sure to zoom in and work
carefully so you don't accidentally leave sloppy edges around the effect. Remember that you can
apply an effect in one area and then open another adjustment of the same type, with slightly dif-
ferent settings, and apply that adjustment to a different part of the image by choosing Add New
adjustment from the Action pop-up menu in the adjustment brick. The ability to brush adjust-
ments in and out to create localized adjustments gives you a huge amount of control over your
images without ever having to leave Aperture and without having to make difficult and time-con-
suming selections.
Press Ô+Z to undo previous adjustments. Repeating the keystroke combination
continues to step the adjustments back in time if you discover you're heading in the
wrong direction. You can also use the curved arrow near the top right of each of the
bricks to reset the brick to its default settings.
Genius
