Green Screen Technology
Green Screen Technology
Introduction of Green Screen Technology
Green screen or Chroma key technology, first became known and favored in 1970s. Chroma key technology was recognized to be one of the most inventive as well as imaginative techniques of creating effects when it came to filmmaking and photo modifying. the use of a green screen is a special effects/post production technique for layering two images or video footage together. A solid color screen is made clear and is replaced with an actual background.
History of Green Screens
In early filmmaking, a complex and time consuming process known as "travelling matte" was used prior to the introduction of digital composition. Travelling Matte a process that was used to superimpose backdrops with actors performing against a blank wall. In the 1930s, the blue screen method was developed at RKO Radio Pictures to make more effective films. The thief of Bagdad (1940), was the first film to use green screen method and won the academy award for visual effects that year. As filmmaking progressed it was discovered that green was a more effective color for the screens. In 1970s, the color blue in the Chroma Key was finally transformed to the color green. In the same year, the green screen process became famous when it was applied to video editing as well as photography.
Green Screen Technology in Education
Green Screen Technology is all about turning students into innovative and creative film makers. Any student can achieve success using green screen technology. Whether it be creating a digital recount of an excursion or a travel information documentary about a country being studied.
Chromavid and PowerDirector apps are used as Green Screen apps. These tools are easy, oneclick solutions for beginners, and precision adjustments tools for advanced users. These tools helps to students to enhance their knowledge to make different videos which can be edited.
Advantages of Green Screen Technology
- Green screen technology are a great way to integrate technology into classroom, no matter the grade level!
- They allow students to be even more creative in their presentations and it gives them the opportunity to learn how to use tools they can apply to many different areas of life.
- Using a green screen with video allows you to replace the background with any image or video of our choice.
- We can transport ourself anywhere in the world and beyond with the green screen. The use of green screen meant that film production costs saw a decline.
- Actors can film in the studio in front of the green screen then backgrounds can be superimposed into the shot.
- This means that the production company do not have to spend as much on the location and shooting the scene in front of the backdrop that matches the writers description. Instead, the effects can be added during editing.
Disadvantages of Green Screen Technology
- As mentioned, green screen also risks color spill which can inference with your effects and make it harder to draw a key, making even the most expensive video look cheap and amateurish.
- It will also mean more time spent in postproduction. The initial implementation is costly.
- Frequent change in technology.
- Green IT cause more burden to an individual. The disparity in the level of understanding across various companies, professionals, and end-users. Fewer courses and publications related to green computing.
Conclusion:
This technology which was once an awe-inspiring feat only attainable if you were working in the film industry on the backlots of Universal Studios is now readily available and easy and engaging for your classroom. Weather you teach preschool ages students or year 12 students, green screen technology definitely has a place embedded into your learning and reaching program. if you already have iPad in your school, then you are well on your way to integrating green screen technology.
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