Chroma key allows a background to be replaced with an artificial image. Besides reducing production costs, it can save time and make the impossible possible.
Chroma key is a major ally in audiovisual production. It is an editing technique that replaces the background of a video — usually green, blue or red — with an artificial image, making it possible, for example, to film on a city street or even in outer space without leaving the studio.
This technique has virtually no limits when it comes to choosing a setting. Chroma key makes it possible to film on a street in New York, on a beach in Thailand or in the middle of the Pacific Ocean — without ever leaving the studio. Because the setting is artificial, countless images and combinations can be used to create locations that would be extremely difficult, or even impossible, to film in reality.
Using chroma key can also reduce production costs, as there is no need to spend money on building a physical set or transporting people and equipment. In addition, it avoids the costs and bureaucracy associated with obtaining permits for filming outdoors.
Chroma key can also save production time, since there is no need to travel. Scenes can be recorded more quickly — even on the same day — because production is not affected by unexpected weather conditions, for example.
Furthermore, chroma key offers greater versatility and interactivity, something that is not always possible with a traditional set.
Using chroma key can therefore save both time and money while breaking down creative boundaries. All you need to do is let your imagination run free.
