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7. Importing and Exporting  > Import and Export Basics

Import and Export Basics

Some basic issues should be understood when working with computers, graphics, and video. Because of the way computers have developed, with their reliance on RGB (red, green, blue) color for their screens and memory, and the way video developed, beginning with black-and-white analog, the two mediums have never had a particularly easy coexistence. One of the hopes for high-definition television (HDTV) is that some of those issues will be resolved, but the addition of more incompatible formats has rarely made things simpler.

Color Space Conversion

Computers and video work with different color formats and different kinds of scanning and scan rates. We commonly refer to methods of representing colors as color space. It usually is represented graphically by a cube with white at the top and black at the bottom. The range of colors possible within a color space makes up the height and width of the cube. Different color spaces use different methods of distributing those colors inside the cube shape.


  

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