A green screen background is the most important element when it comes to chroma keying, the special effect of superimposing parts of one electronic image or video onto another based on isolated color hues.
With this technique, a static or moving person or object who is captured or recorded in front of a green screen can be layered onto separately filmed background footage.
By using green screen technology, video producers and photographers get to work in a controlled environment, making the post-production editing process simpler and less time consuming. They can insert their subjects into virtual backgrounds and animated digital backdrops, sending them to the jungle, Antarctica or 18th-century London without physically visiting those locations.
Green is the preferred hue for chroma keying because it juxtaposes sharply with most human skin tones and is found less frequently in common objects. Image sensors in digital cameras also are especially sensitive to green hues.
The subject to be superimposed cannot be wearing or possess any color that matches the backdrop, or that aspect appears invisible when layered onto the new background.
While green screens generally are associated with the production of major motion pictures, particularly action films, they have numerous other commercial uses.
Green screen technology is widely utilized in several facets of the entertainment industry, including video game production and live weather broadcasting.
Additionally, both large and small companies use green screen backdrops when producing state-of-the-art commercials or videos to market products and services and build relationships with clients. With the ability to rent green screens, the technology also has become more accessible for non-professional purposes, as well.
Setting up a green screen studio is a unique way to add flair and a fun activity for guests at weddings, birthday parties, school dances and other social events.
Important Green Screen features
The backdrop should be even, as textures interfere with the distribution of light and cause shadows.
The backdrop should be bright enough to provide a suitable contrast to your subject.
The backdrop should be sized to fill the screen, but size also depends on whether your want to capture a full-body shot of a person, a small animal, an action figure or another subject.
As you start exploring and using the magic of green screen technology, the first step is renting a suitable background. While it is possible to make a screen using any bright green material, such as poster boards or yards of fabric from a craft store, working with a professional rental company ensures your background is the optimal size, hue, brightness and texture for using chroma keying to produce Hollywood-grade videos and static images for personal and business purposes.