Tuesday, 25 February 2014

Aspect ratio

The aspect ratio of an image describes the proportional relationship between its width and its height.

There are lots of different ratios but only two are used most of all. There are 4:3, the universal video format of the 20th century, and, universal for high-definition television and European digital television.

4:3 standart 

This format has been in use since the invention of moving picture cameras. It is now widely used in television translations and movies in middle 50s until 90s. 

16:9 standart 

Is the international standard format of HDTV, non-HD digital television and analog widescreen television. Many digital video cameras have the capability to record in 16:9, and 16:9 is the only widescreen aspect ratio natively supported by the DVD standard. DVD producers can also choose between sub-formats within 16:9 or add black bars within the image itself.


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