User Manual
119
Creating a Matrox primary color correction
Using the luma mapping graph
To modify your luma mapping values directly in the graph, click the triangle next 
to the 
Luma Mapping Graphical property to expand it:
•
Map This is the default view when you first expand the Graphical 
property. You can drag the handles in the graph to adjust the 
Input and 
Output levels for black and white, as well as the Gamma.
•
Plot Click this button to plot the luminance values in the current frame of 
your clip to the histogram (the plot will reflect any color correction changes 
you’ve made). Each luminance value present in your image appears as a 
vertical line in the histogram. A longer line indicates a higher amount of 
pixels in your image of that line’s luminance value. You can drag the handles 
0 Input 
Black 
Level
1 Input 
White 
Level
2 Output 
Black 
Level
3 Output 
White 
Level
4 Gamma
0
1
2
3
4










