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Wednesday, February 17, 2010

Green Screen Hollywood Technology - What it Consists of and How to Use It

By Phillip Guye

Hollywood manages to move moviegoers to different places be it real or standard. With today's sophisticated film making technologies, anyone can take a look at ancient Rome's grand coliseums, walk on the surface of Jupiter, and visit dimensions that was once restricted to only our imaginations. Also, creatures like monsters, angels, and beasts are brought to life with the help of green screen Hollywood technology. But what exactly is green screen or "Chroma Key" technology? How does it work?

Green screen technology is the mixing of 2 pictures together. A solid background color is utilised so that another image can be transposed in front of the main picture. More frequently than not, green is the color used for this reason although blue is also generally used. Green is more favored among filmmakers because image sensors in cameras are sensitive to it. Green camera channels have less noise and can make the most clean masks. Also, the color green is commonly used as it doesn't have to be illuminated much, in comparison to other colors. This makes the green screen the ideal background of different productions from weather reports to giant budget Hollywood films.

However, there are a couple of things to keep in mind when using green screen Hollywood technology. Good production equipment like lights and quality cameras should be used when using Chroma Key technology screens. Bad lighting can cause unpleasant shadows and wrong shades on the screen. it is crucial to have all the right gear when filming something that needs the Chroma Key strategy.

Green screen Hollywood technology is also used to solve lots of filmmakers and photographers' issues. One vital use of the chroma key screen is that it permits the user to dump the need to find a real background. Green screens allow filmmakers and photographers to be flexible. With green chroma key screen technology, any image can be added and used as the final background. This is how many Hollywood personalities end up in far flung regions of the universe or in ancient cities that don't exist anymore in this era.

Green screen Hollywood technology is typically utilised by pros. Apart from being a common tool used in pictures, it's also used for magazine shoots, television advertisements, and studio photography. This is how shocking photographs and visual glasses are made available to anyone who would desire something special for films and pictures. When used the proper way, green screens can help produce great photographs only the imagination can cook up. This is exactly why the green screen is one of the most trustworthy and helpful film making and photography tool there is.

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Movies and MP3 files are already compressed with near maximum capacity. Repacking them would just create larger files and increase decompression time. Ripped movies are still packaged due to the large file size, but compression is disallowed and the RAR format is used only as a container. Because of this, modern playback software can easily play a release directly from the packaged files, and even stream it as the release is downloaded (if the network is fast enough).

MP3 and music video releases are an exception in that they are not packaged into a single archive like almost all other sections. These releases have content that is not further compressible without loss of quality, but also have small enough files that they can be transferred reliably without breaking them up. Since these releases rarely have large numbers of files, leaving them unpackaged is more convenient and allows for easier scripting. For example, scripts can read ID3 information from MP3s and sort releases based on those contents.