Secondary Color Correction Primer - The Art and Technique of Digital Color Correction - page 174

Notice these same color chips in the center image in the UI (upper
center of Figure 5.17 ). The green color chips are bluish-purple because
the green vector was swung towards the blue-purple vector in the “out-
put vector.”
Notice the numbers on the input and output sides. On the input side,
the numbers define a specific degree of hue and amount of saturation
that has been selected. On the output side, you see the new angle to
which the hue has been swung and the fact that the saturation has been
increased ( Figure 5.19 ) . This saturation increase is also displayed visually
by the vectorscope image, which has the green vector pulled out slightly
further on the output side than the input side. Just like a vectorscope, the
distance from the center of the vectorscope shows the amount or power
of the saturation.
To get a better understanding of this, it is possible in the Symphony
UI to isolate the vector you are trying to define and to display all of the
unselected vectors as gray. To make it more clear what we are selecting,
we'll switch to the “isolate” mode. (Many other applications have a simi-
lar mode.)
In this example, we spread the input vector—which could also be
known as our isolation or defined or qualified vector—and rotated
the hue a bit so that we isolated only the bottom row of green color
chips. Notice the numbers for hue are slightly different than in our first
Fig. 5.19