Chroma Key

Chroma key, also known as green screen or blue screen, is a technique widely used in video production and visual effects to replace a specific color (often green or blue) with another image or video. This process allows filmmakers and content creators to seamlessly blend live-action footage with virtual backgrounds or other pre-recorded content. The keying out of the selected color provides a transparent background, enabling the insertion of alternative visuals during post-production.

Chroma keying is employed in various creative applications, from weather forecasting on television to the creation of fantastical landscapes in movies. The success of this technique relies on careful lighting, ensuring that the chosen color (usually green) does not spill onto the subjects being filmed. Chroma key technology has become a staple in the entertainment industry, enabling filmmakers to transport characters to different settings or create visually stunning and immersive scenes.