Chroma key in the context of "Cyclorama (theater)"

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⭐ Core Definition: Chroma key

Chroma key compositing, or chroma keying, is a visual-effects and post-production technique for compositing (layering) two or more images or video streams together based on colour hues (chroma range). The technique has been used in many fields to remove a background from the subject of a photo or video — particularly the newscasting, motion picture, and video game industries. A colour range in the foreground footage is made transparent, allowing separately filmed background footage or a static image to be inserted into the scene. The chroma keying technique is commonly used in video production and post-production. This technique is also referred to as colour keying, colour separation overlay (CSO; primarily by the BBC), or by various terms for specific colour-related variants such as green screen or blue screen; chroma keying can be done with backgrounds of any colour that are uniform and distinct, but green and blue backgrounds are more commonly used because they differ most distinctly in hue from any human skin colour. No part of the subject being filmed or photographed may duplicate the colour used as the backing, or the part may be erroneously identified as part of the backing.

It is commonly used for live weather forecast broadcasts in which a news presenter is seen standing in front of a CGI map instead of a large blue or green background. Chroma keying is also common in the entertainment industry for visual effects in movies and video games. Rotoscopy may instead be carried out on subjects that are not in front of a green (or blue) screen. Motion tracking can also be used in conjunction with chroma keying, such as to move the background as the subject moves.

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👉 Chroma key in the context of Cyclorama (theater)

In theater and film, a cyclorama (abbreviated cyc in the U.S., Canada, and the UK) is a large curtain or wall, often concave, positioned at the back of the apse. It often encircles or partially encloses the stage to form a background. The world "cyclorama" stems from the Greek words "kyklos", meaning circle, and "orama", meaning view. It was popularized in the German theater of the 19th century and continues in common usage today in theaters throughout the world. It can be made of unbleached canvas (larger versions) or muslin (smaller versions), filled scrim (popularized on Broadway in the 20th century), or seamless translucent plastic (often referred to as "Opera Plastic"). Traditionally it is hung at 0% fullness (flat). When possible, it is stretched on the sides and weighted on the bottom to create a flat and even surface. As seams tend to interrupt the smooth surface of the cyclorama, it is usually constructed from extra-wide material. Cycloramas are also used in photography and architecture.

In photography, cycloramas or cycs also refer to curving backdrops which are white to create the illusion of no background, or green for chroma keying.

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Chroma key in the context of Compositing

Compositing is the process or technique of combining visual elements from separate sources into single images, often to create the illusion that all those elements are parts of the same scene. Live-action shooting for compositing is variously called "chroma key", "blue screen", "green screen" and other names. Today, most compositing is achieved through digital image manipulation. Pre-digital compositing techniques, however, go back as far as the trick films of Georges Méliès in the late 19th century, and some are still in use.

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Chroma key in the context of The Lion King (2019 film)

The Lion King is a 2019 American musical drama film that is a photorealistically animated remake of the traditionally-animated 1994 film. Directed by Jon Favreau, written by Jeff Nathanson, and produced by Walt Disney Pictures and Fairview Entertainment, the film stars the voices of Donald Glover, Seth Rogen, Chiwetel Ejiofor, Alfre Woodard, Billy Eichner, John Kani, John Oliver, Florence Kasumba, Eric André, Keegan-Michael Key, JD McCrary, Shahadi Wright Joseph, with Beyoncé Knowles-Carter, and James Earl Jones (reprising his voice role as Mufasa for the final time). The story follows a young lion prince named Simba, who is exiled from his kingdom after his father Mufasa is murdered by his uncle Scar to seize the throne. As he grows up, Simba must decide whether to return home to confront Scar and reclaim his place as king.

Plans for a remake of 1994's The Lion King were confirmed in September 2016 following box office successes for Disney remakes such as The Jungle Book (2016). Favreau was inspired by certain roles of characters in the Broadway adaptation and developed upon elements of the original film's story. Much of the main cast signed on in early 2017, and principal photography began in mid-2017 on a blue screen stage in Los Angeles. The virtual reality tools utilized in The Jungle Book's cinematography were used to a greater degree during the filming of The Lion King. Composers Hans Zimmer, Elton John, and lyricist Tim Rice returned to compose the score alongside Knowles-Carter, who assisted John in the reworking of the soundtrack and wrote a new song for the film, "Spirit", which she also performed. With a production budget of $250–260 million, the film is one of the most expensive films ever made, as well as the most expensive Disney remake.

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LINKED FROM (PARENTS)
← Compositing ← The Lion King (2019 film) ← Cyclorama (theater)
LINKS TO (CHILDREN)
Iman Crosson → Barack Obama → Visual effects → Post-production → Compositing → Image → Video → Colorfulness → Background subtraction → Newscast → Motion picture → Video game → Video production → BBC → Human skin colour → Weather forecasting → Broadcasts → News presenter → Computer-generated imagery → Movies → Rotoscopy → Match moving →