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Table Of Contents
Chapter 12 Keyingandcompositing 383
Use chroma keys
A challenging part of creating a good chroma key is shooting the chroma key video,
and in particular, using a good, well-lit background that provides a uniform color to
remove. A wide variety of specialized chroma key background options are available,
from chroma key paint that includes highly reective additives to chroma key cloth or
paper sheets. Additionally, it is important to use the best camera you can access and
avoid using a highly compressed video format such as DV or MPEG-2.
For the following examples, this woman will be keyed over a street scene. The light
stands will be handled in “Finalize the key on page 401.
Apply the chroma key eect
1 In the Timeline, add the foreground clip (the chroma key clip with the color you want
to remove) to the primary storyline.
2 Drag the background clip (the clip you want to superimpose the chroma key clip over)
so that it is connected below the foreground clip in the primary storyline.
Foreground
Background attached
as a connected clip