Secondaries with the Pros - The Art and Technique of Digital Color Correction - page 261

Fig. 6.91 The keyer selects the yellowish/green shade of the hair, allowing it to be corrected.
it 'secondary.' I use a lot of masks. I create masks on layers. That is the
true nature of what I do and then I apply 3D keying into that. My work
is making it real, getting it three-dimensional, and then taking the cues
from the lighting that was done on set and then enhancing that with
masks and layers. That's my approach to doing what I do.”
Seeing how these talented colorists harness the power of their systems
to grade with great specificity to achieve the results they desire is a testa-
ment to the importance of color correcting tools that provide you with the
most control possible.
Though each colorist attacked the problems encountered in the image
in a different way, clear methods and a strategic approach made each step
a logical progression towards the goal.