chromakey
nounUK /ˈkrəʊməkiː/
US /ˈkroʊməkiː/
A bright green or blue screen used to put a different background behind people in movies.
The weather reporter stands in front of a chromakey so the map can appear behind her.
RELATED WORDS
OTHER MEANINGS
2. A digital technique for making one color transparent so another image shows through.
The editor used chromakey to remove the green background from the video.
3. A color-based method for layering images in television and film production.
Chromakey lets filmmakers place actors in imaginary worlds.
4. A keying process in which a specific hue is selected and replaced.
The software's chromakey tool picked out the blue curtain instantly.