User Manual

Hue vs. Hue
The Hue vs. Hue curve lets you change any hue to any other hue. In the following example, the
image on the left is the unadjusted original. The image on the right has had the orange jacket
shifted to an olive green via a set of three control points.
Changing the hue of the woman’s jacket using the Hue vs. Hue curve;
Left–original image, Right–altered image
One excellent use of the Hue vs. Hue curve is to quickly and subtly alter elements that require
only minor adjustments. For example, a sky that appears a bit too cyan can be made into a
richer shade of blue with a small adjustment.
Hue vs. Hue is also useful for making more radical changes to elements that might be too noisy
to key successfully using the HSL qualifier controls. For example, red autumnal foliage blowing
in the wind might result in a chattery matte, but you can use the Hue vs. Hue curve to change
reds to greens, without having to worry about aliased matte edges giving your correction away.
Hue vs. Sat
The Hue vs. Sat curve lets you selectively alter the saturation of any hue within the image.
Thisis a terrific tool for creative effect, allowing you to quickly and easily boost the saturation
ofelements you want to catch the viewer’s eye, while reducing the saturation of elements you’d
prefer the audience not dwell upon.
This can be extremely useful for legalizing over-saturated overshoots or undershoots during
aQC pass. For example, desaturating reds that are off the charts while leaving everything
else alone.
Lowering the saturation of the woman’s jacket using the Hue vs. Sat curve;
Left–original image, Right–altered image
The Hue vs. Sat curve can also be a powerful tool for increasing the color contrast of images
that seem lackluster and flat. By boosting the saturation of colorful elements that are distinct
from the dominant palette of a scene, you can add variety to an otherwise
monochromatic image.
Chapter – 118 Curves 2689