COMPUTER NETWORKING

Detailed explanation-1: -“Chroma keying is using color information to select a very specific range of colors and isolate them, ‘’ says professional filmmaker Colin Dougan. “The idea is to utilize the contrast in colors to shift reality and cut our subjects from a background and place them somewhere completely different.”

Detailed explanation-2: -Why? The really short answer is that green screens are green because people are not green. In order for the effect to work, the background must use a colour that isn’t used elsewhere in the shot – and green is nothing like human skin tone.

Detailed explanation-3: -Keying is creating areas of transparency based on color or lightness values in an image. Keying is commonly performed on subjects photographed against a blue or green background, but keys can be based on any color (color or chroma keying), or on a specific range of lightness values (luma keying).