2017

Table Of Contents
To:Drag:
Set the range for the blend. Drag right to soften the edge and blend further into the
key. Drag left to harden, or create a thinner, edge. Edge Size affects both the Luma field
and the Edge Balance trackball.
Edge Size
TIP To drag faster, apply more pressure with the pen, or hold Option+Spacebar while you drag.
The red indicator shows the original value and the yellow indicator shows the current value. The values
also appear in the Blend fields.
5 To modify both parameters, move the mouse between them to highlight a parameter, or drag the pen
vertically. When you highlight the parameter you want to adjust, drag the slider.
TIP If you do not like the result, you can click Undo to reset parameters.
6 When you are finished modifying the displayed parameters, click another area of the image without
highlighting a parameter to hide them. Alternatively, you can press any key, such as spacebar or Esc.
The parameters are no longer displayed.
7 To add a cast to the edge of the key and improve the overall look by matching the edge with a colour
cast in the back clip, drag the Edge Balance trackball toward the colour you want to add. The trackball
only affects the chroma of the edge.
692 | Chapter 16 Chroma Keying and Working with Green Screens