Question

Chroma Keying is the technical term for using green screens. When the technique was invented, however, the screens weren't green. What color screen was used instead?

1) Blue
2) Red
3) Yellow
4) White

Answer 1

Chroma keying was originally done with blue screens instead of green. Blue was chosen because it was less likely to match wardrobe or eyes, provided finer film grain, and was easier to process with early camera technology.

Step-by-step explanation:

The technique of chroma keying, which is widely known for utilizing green screens, originally used blue screens. This is because the early keying technology worked better with blue due to a variety of reasons, including the fact that blue was less likely to match clothing or eyes, the grain on film was finer for blue, and blue lighting was less complex for early cameras to process.

When looking at the technical aspects of color in displays, it's also relevant to consider the RGB color model used in devices like televisions and computer monitors. This model represents colors through the combination of red, green, and blue light. Primary colors for most of the art media are red, yellow, and blue. However, for additive color systems like those in screens and stage lighting, the primary colors consist of red, green, and blue.