View Source: JPEG - Waikato Linux Users Group

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[Acronym] for __J__oint __P__hotographic __E__xperts __G__roup.

A set of image FileFormat~s well suited for natural images. Standard [JPEG] uses lossy compression (Discrete Cosine Transform and quantisation) to significantly reduce file size while maintaining an acceptable image quality. JBIG is a specialization of [JPEG] for bi-level images (ie black and white). JPEG2000 is a newer, better format using wavelet compression -- which is [Patent] encumbered, so you're unlikely to see it implemented in OpenSource software.

[JPEG] image files commonly have the FileExtension <tt>.jpg</tt> or <tt>.jpeg</tt>, but rarely <tt>.jpe</tt> also occurs.

The "Joint" in the name refers to the fact that the standard is a joint effort between [ISO] and [ITU-T]. Like many [ISO] standards, you have to pay to get a copy of it.

See also:
* [The JPEG Homepage | http://www.jpeg.org/]
* [GIF]
* [PNG]

6 pages link to JPEG:

Last edited on Wednesday, September 15, 2004 3:06:51 pm by AristotlePagaltzis

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