Graphics Programs Reference
In-Depth Information
Step Three:
So, click-and-drag the Color slider to the
right, but remember, you'll still see some
noise (that's the luminance noise, which
we'll deal with next), so what you're look-
ing for here is just for the red, green, and
blue color spots to go away. Chances
are that you won't have to drag very far
at all—just until that color noise all turns
gray. If you have to push the Color slider
pretty far to the right, you might start to
lose some detail, and in that case, you
can drag the Color Detail slider to the
right a bit, though honestly, I rarely have
to do this for color noise.
Step Four:
Now that the color noise is gone, all
that's left is the luminance noise, and
you'll want to use a similar process: just
drag the Luminance slider to the right,
and keep dragging until the visible noise
disappears (as seen here). You'll gener-
ally have to drag this one farther to the
right than you did with the Color slider,
but that's normal. There are two things
that tend to happen when you have to
push this slider really far to the right: you
lose sharpness (detail) and contrast. Just
increase the Luminance Detail slider if
things start to get too soft (but I tend not
to drag this one too far), and if things start
looking flat, add the missing contrast back
in using the Luminance Contrast slider
(I don't mind cranking this one up a bit,
except when I'm working on a portrait,
because the flesh tones start to look icky).
You probably won't have to touch either
one all that often, but it's nice to know
they're there if you need them.
(Continued)
