WHAT’S THE MEANING
Chroma key compositing (also known as chroma keying) is a technique used in the post-production process of filmmaking that involves combining two frames or images by replacing the color background of the main subject.
DID YOU KNOW
Did you know that green is the common color used in chroma keying because it has a very distinct shade from our skin? Moreover, it is the color that is likely worn by actors. But why does this even matter? Because in the parlance of film and cinematography, the aim of chroma keying is to separate the main subject from the green background (also known as the green screen) and of course, it would be easier for the video editor to isolate the green part if it stands out. However, in Hollywood, they are more into blue screens than green. An article published on No Film School suggest 5 secrets to pulling off a Hollywood-level chroma key. First and the most important one on the list is choosing the right chroma color. Although green is widely used, it is always necessary to consider factors in choosing the appropriate chroma to use. For instance, if the main subject consists of something green, a blue chroma would work better, and vice-versa. In photography, green screen is also utilized as it is more cost-efficient and allows the photographer to contain the subject into a controlled environment that he prefers.