History of Green Screen
Invented by C Dodge Dunning, this process used coloured lights making the background blue and subjects yellow. The colours were then
split with dyes and filters to create travelling mattes. This was updated to the three strip Technicolor process in 1940 by Larry Butler.
Practically all movies these days use special effects involving CGI and the use of Green Screens nowadays.
Chroma Key is commonly used for weather forecast broadcast, wherein a news presenter is usually seen standing in front of a large
CGI map during live television newscasts, though it is actually a large blue or green background. When using a blue screen, different
weather maps are added on the parts of the image where the color is blue. If the news presenter wears blue clothes, his or her clothes will also be replaced with the background video. A complementary system is used for green screens.
Chroma keying is also used in the entertainment industry for special effects in movies and video games. The advanced state of the
technology and much commercially available computer software, such as Autodesk Smoke, Final Cut Pro, Pinnacle Studio, Adobe After
Effects, and dozens of other computer programs, makes it possible and relatively easy for the average home computer user to create
videos using the "chromakey" function with easily affordable green screen or blue screen kits.
split with dyes and filters to create travelling mattes. This was updated to the three strip Technicolor process in 1940 by Larry Butler.
Practically all movies these days use special effects involving CGI and the use of Green Screens nowadays.
Chroma Key is commonly used for weather forecast broadcast, wherein a news presenter is usually seen standing in front of a large
CGI map during live television newscasts, though it is actually a large blue or green background. When using a blue screen, different
weather maps are added on the parts of the image where the color is blue. If the news presenter wears blue clothes, his or her clothes will also be replaced with the background video. A complementary system is used for green screens.
Chroma keying is also used in the entertainment industry for special effects in movies and video games. The advanced state of the
technology and much commercially available computer software, such as Autodesk Smoke, Final Cut Pro, Pinnacle Studio, Adobe After
Effects, and dozens of other computer programs, makes it possible and relatively easy for the average home computer user to create
videos using the "chromakey" function with easily affordable green screen or blue screen kits.
Using Green Screen in Historical Places
Green Screen is very popular to combine different pictures. I used Green Screen to capture/take a couple of pictures and combined them with historical places. The result depends on your lights and camera quality. In real life, it is difficult to capture your picture in those places, but you can get same result when you use Green Screen. Some applications use chroma or color key to replace green screen to other background. In these samples, I used Photoshop, color selection tool, to select green. And, replace with a background.