Online Glossary

Captioning

CCD

CGI

Chromakey

Close-up (CU)

Codec

Colour bar

Colour correction

Composite

Compression

Continuity

Cross-fade

Chromakey works by removing a specific colour from the image, most commonly blue or green. This enables you to film against a coloured screen, which you can then ‘remove’, resulting in the foreground subject being ‘cut out’. They can then be seamlessly placed over another image.
See also; greenscreen, bluescreen, composite