ALIEN WALKING STYLES
Grey aliens, also referred to as Zeta Reticulans, Roswell Greys, or Grays, are purported extraterrestrial beings. According to journalist C. D. B. Bryan, seventy-three percent of all reported alien encounters in the United States describe Grey aliens, a significantly higher proportion than other countries. Such claims vary widely, but typically Greys are described as having small bodies with smooth grey-colored skin, enlarged hairless heads, and large black eyes. The popularization of the idea of the Grey alien is commonly associated with the Barney and Betty Hill abduction claim, which purportedly took place in New Hampshire in 1961, although there are precursor figures described in science fiction and earlier paranormal claims; similar descriptions appeared in early accounts of the 1947 Roswell UFO incident. The Grey alien has emerged as an archetypal image of a sentient non-human creature and extraterrestrial life in general, as well as an iconic trope of popular culture in the age of space exploration.
Chroma key compositing, or chroma keying, is a special effects / post-production technique for compositing (layering) two images or video streams together based on color hues (chroma range). The technique has been used heavily in many fields to remove a background from the subject of a photo or video – particularly the newscasting, motion picture and videogame industries. A color 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 color keying, colour-separation overlay (CSO; primarily by the BBC), or by various terms for specific color-related variants such as green screen, and blue screen – chroma keying can be done with backgrounds of any color that are uniform and distinct, but green and blue backgrounds are more commonly used because they differ most distinctly in hue from most human skin colors. No part of the subject being filmed or photographed may duplicate the color used as the backing.
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