Graphics Programs Reference
In-Depth Information
6.36
Adjust the sliders to remove the colored halos.
Removing noise
Aperture offers a Noise Reduction adjustment that primarily reduces chromatic noise (magenta,
green, and blue blobs that appear in areas that should be smooth colors). The adjustment con-
tains two controls: a Radius slider to control how far out the effect extends and an Edge Detail
slider that controls how much edge detail to retain. The higher the Edge Detail setting the less
noise reduction that's applied.
We find this adjustment can be helpful with some images, particularly when brushed in, but with
images that have major noise issues, we tend to prefer third-party noise-reduction plug-ins that
offer more controls.
Using Quick Brushes
Quick Brushes are very similar to the brushes you use when you brush an adjustment in or out. The
main difference is that Aperture has additional adjustments that are only available as Quick Brush
adjustments. These adjustments are designed to be brushed in or out but not necessarily applied
to the entire image. In this section, we describe using the Quick Brushes, including the Retouch
tool and the other Quick Brushes.
