DCT compression

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'''DCT compression''' (Discrete cosine transform) is a compression technique used for images and audio. It is used in [[JPEG]] and [[MP3]], where it provides lossy compression (meaning that some detail is lost).
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'''DCT compression''' (Discrete cosine transform) is a compression technique used for images and audio. It is used in [[JPEG]] and (in a modified form) [[MP3]], where it provides lossy compression (meaning that some detail is lost).
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The audio format known as [[DCT]] is, however, not related; that abbreviation comes from "dictation". That format can use a variety of codecs including MP3, meaning that it might or might not happen to use the compression technique with the same initials.
  
 
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== Links ==

Revision as of 14:02, 5 January 2014

File Format
Name DCT compression
Ontology

DCT compression (Discrete cosine transform) is a compression technique used for images and audio. It is used in JPEG and (in a modified form) MP3, where it provides lossy compression (meaning that some detail is lost).

The audio format known as DCT is, however, not related; that abbreviation comes from "dictation". That format can use a variety of codecs including MP3, meaning that it might or might not happen to use the compression technique with the same initials.

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