What is a Bluescreen?
Bluescreen is a special effects process used in film, television, video and more recently, the world of computers. Bluescreen, greenscreent, or bluescreen imaging, is used to create the illusion of a background that isn’t actually there when filming takes place. Hollywood blockbusters such as Star Wars and the Harry Potter films use bluescreen to transport the actors into exciting worlds that had previously only existed in the imagination. To create a bluescreen image, the actor is photographed or filmed in front of an evenly lit, pure blue background. The image is then usually transferred to computer and the blue background is replaced with another image. This is known as the background plate. Bluescreen images can be made optically for movies or still photos, digitally for computer images or electronically for video. The reason blue is favored for this process is that the most common color in scenes is peach shades; blue is the most complementary color to peach. As blue is the opposi
