You
can adjust the grey values of an image by adjusting gamma. This
allows you to brighten or darken the image and modify the gamma
level without greatly affecting the shadows and highlights.
NoteWhen you use a slider
or colour balance wheel to colour grade a shot, the colour range
is limited by the control (the edge of the colour wheel, for example).
Use the Autodesk control surface or the Tangent CP100 control surface
to reach the full spectrum of colour.
To modify gamma:
- Indicate whether this is the initial
or final primary grade:
- To work on the initial primary colour
grade, click Input.
- To make final adjustments to the primary
colour grade, click Output.
- Select the range you want to modify.
- Do one of the following:
- To decrease contrast, drag the Gamma
slider up.
- To increase contrast, drag the Gamma
slider down.
- To balance the colours while maintaining
the overall gamma level, enable Gamma and then drag the Gamma Balance
wheel towards a colour.
The amount of the selected colour is increased
in the image while the overall gamma level is maintained. The middle
of the image curve is the most affected.
NoteSelect Low, Mid, or High to further differentiate
between the areas of the image that are affected.
