| You must have seen a weatherman standing in | | | | Another way to decide the color scheme is, for |
| front of a weather map or Spiderman in movies | | | | example, when the background is a green hilly |
| leaping from one building to another. Many of you | | | | area you should opt for a green color. If you |
| know that a person standing in the news station | | | | want to make sea as the background image then |
| or a hero performing the stunt is actually in front | | | | you can use blue color. Foreground footage is the |
| of a green color screen. | | | | subject. A well-lit color screen is preferable so |
| A photographer uses a technique that detects the | | | | that it is the exact color all the way across. |
| green or blue color in the image and replaces it | | | | Shadows caused by poor lighting can result in a |
| with any other picture. This is called chroma key | | | | video or a picture with floating objects and |
| photography. With this kind of photography, you | | | | blotches. A person should also be careful with the |
| can create images that are beyond reality. One | | | | foreground subject lighting. The subject properly lit |
| can make a person look giant standing in front of | | | | helps to define its outline well. |
| the 'Leaning Tower of Pisa' and other such | | | | If the subject brightly lit, then some light will |
| wonders. | | | | reflect off the background producing visible circles |
| In the world of chroma key, few things are | | | | in the final combined movie. A subject should not |
| essential requirements. One should have adequate | | | | be too close to the background screen. This is to |
| footage for the background, which is the scenery | | | | avoid shadows, which disturb the uniform color of |
| that has to replace the green or blue color | | | | the background. After taking the photograph, a |
| background. It is hard to say that the blue color is | | | | new image can merge at the background. When |
| better than the green as the choice mainly | | | | the two images placed, your subject suddenly |
| depends on the subject. It is important that the | | | | transcended from a large blue or green screen to |
| subject should contain as little of the screen color | | | | anywhere you want with limits being your |
| as possible whether in their clothing or as part of | | | | imagination. |
| an object. For example, if the person has blue | | | | From professionals to the lovers of photography |
| eyes then a photographer should choose a green | | | | can use the green screen technology, which helps |
| color screen. | | | | them to free their creativity beyond limits. |