Secondary Color Correction; Qualifying A Color - Blackmagicdesign Video Assist Installation And Operation Manual

You can also use the curves palette to make primary color corrections. Simply click to create
control points on the diagonal line inside the curve graph, and drag them up or down to adjust
the master RGB contrast at different areas of image tonality. The optimum points to adjust are
the bottom third, mid, and top third of the curve line.
There are many more ways of doing primary color correction in DaVinci Resolve. Check the
DaVinci Resolve manual to learn how to use them all.
The curves palette is another tool you can use to make primary color corrections,
or enhance specific areas of your clip when using a power window.

Secondary Color Correction

If you want to adjust a specific part of your image then you need to use secondary corrections.
The adjustments you have been doing up until now using the color wheels and lift, gamma and
gain adjustments affect the whole image at the same time and so they are called primary color
corrections.
However if you need to adjust specific parts of your image, say for example you wanted to
improve the color in the grass in a scene, or you wanted to deepen the blue in a sky, then you
can use secondary corrections. Secondary color corrections are where you select a part of the
image and then adjust just that part. With nodes, you can stack multiple secondary corrections
so you can keep working parts of your image until everything is just right! You can even use
windows and tracking to allow the selections to follow movement in your images.

Qualifying a Color

Often you'll find a specific color in your clip can be enhanced, for example grass by the side of
a road, or the blue in a sky, or you may need to adjust color on a specific object to focus the
audience's attention on it. You can easily do this by using the HSL qualifier tool.
Use the HSL qualifier feature to select specific colors in
your image. This is handy when you want to make areas
of your image 'pop', to add contrast, or to help draw the
audience's attention to certain areas of your shot.
Using DaVinci Resolve 38