Why do you choose green as the green screen technology for film production?

Because the green screen is the background screen for shooting stunt shots, the actors perform in front of the blue screen and the green screen, which are shot by the camera and processed in the computer, and the blue or green background is removed and replaced with other backgrounds.

Other technologies:

Blue-cutting technology refers to the technology of shooting with blue as the background when shooting or taking pictures, and using the "color key" of stunt machine to cut off the blue background and replace it with other more ideal backgrounds in post-production to make actors and props look like shooting in other more ideal backgrounds.

Basic concepts:

In order to achieve the purpose of digging blue, actors and props are required not to use blue when shooting. The blue background requires uniform light, and there can be no shadows and chromatic aberration. In order to achieve the purpose of changing the background, in addition to digging blue, it is often "digging green", that is, shooting with a green background.

Whether digging blue or green, it is usually done in the studio, because only the studio can arrange the light as evenly as possible. This kind of studio dedicated to digging blue is called "blue box" in the industry.

Extended data:

Technical features:

Blue is the complementary color of human skin, and it should be the easiest to pick out images with a blue screen as the background. In recent years, the green screen is more used for stunt shooting. Perhaps the fluorescent green used in the green screen is easier to separate from the foreground in the computer system, which is brighter and less prone to black edges.

Blue screen is generally used in Asia, and green screen is generally used in Europe. Mainly because most Europeans' eyes are blue, if you use a blue screen, the eyes of the late actors will be easily cut off.

Use example:

For example, as we all know, the scene of the Monkey King walking in the TV series The Journey to the West was shot in front of a blue screen, and then processed and changed into the background of the sky. Of course, the technology is much more mature now, and it doesn't look so "fake". Now some movies in Hollywood are shot in front of a green screen, and there is no real background at all.

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