Chromakey is the process of using green screen or blue screen as a backgroundby Sushil S. seo services
Chroma key is an editing technique in which two images are composited together to create a single, finished image. This editing technique is sometimes referred to as blue or green screen referencing the backdrop used to film the subject of an image which will be subjected to the chroma key process. Since digital cameras became mainstream with pros, there's been an increasing interest in chromakey photography and then removing that background in software. Green screen software is the foundation of chroma key photography. They are the ones that make it possible for you to replace the existing background with something of your choice. Green screen technology is the basis of the effects seen in everything from the latest Hollywood blockbusters to the weather forecast. With green screen it's simple to superimpose anything or anyone in to any shot. You can make a presentation along with all the relevant facts and figures. Green is currently used as a backdrop more than any other colour because image sensors in digital video cameras are most sensitive to green, due to the Bayer pattern allocating more pixels to the green channels, mimicking the human eye's increased sensitivity to green light. Therefore the green camera channel contains the least noise and can produce the cleanest key/matte/masks. Additionally, less light is needed to illuminate green, again because of the higher sensitivity to green in image sensors. Green screen backdrop is generally associated with photography/ movies & effect shots. Green screen backdrops are very useful because the ordinary human skin does not have green components in it. This helps in easy background replacement without hindering the general view of the subject who is acting or posting against the green screen. Using green screen backdrops has some benefits. The green screen technique is fairly easy to use and is very cost effective. Sometimes the technique is used to create special effects like invisibility with the actor wearing garments and makeup which approximate the tone of the background so that he or she will disappear in the finished image. Chroma key can be used to make it look like actors are in dangerous, crowded or fantastical situations with a greatly reduced cost to the producers and with less stress for cast and crew. There are many chroma key software programs which can be employed to apply green screen effects. However the best of the software programs will be simple to use and produce great shots. To buy a suitable software program, check whether it integrates the following features into it-If you are an accustomed to green screen technique and photography you will want the software to be simple to use. Another feature that you should inspect for is how simple it is to customize the software. If it doesn't allow you to do the settings in an easy way, then you will surely suffer from problems at the end of the day. The updates to chroma key software come every now and then and you need to ensure that you buy the foremost current version of the software. The green screen software is not available free of charge and therefore you need to inspect the real worth of it as you purchase.
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Created on Dec 31st 1969 19:00. Viewed 0 times.