Difference between revisions of "JPEG"
Karl Jones (Talk | contribs) (→See also) |
Karl Jones (Talk | contribs) (→Exterior Links) |
||
| (One intermediate revision by the same user not shown) | |||
| Line 21: | Line 21: | ||
* [[Computer graphics]] | * [[Computer graphics]] | ||
* [[Digital image]] | * [[Digital image]] | ||
| + | * [[Graphics software]] | ||
* [[Image file format]] | * [[Image file format]] | ||
* [[Raster graphics]] | * [[Raster graphics]] | ||
| Line 27: | Line 28: | ||
* [https://en.wikipedia.org/wiki/JPEG JPEG] @ Wikipedia | * [https://en.wikipedia.org/wiki/JPEG JPEG] @ Wikipedia | ||
| + | |||
| + | [[Category:Computer graphics]] | ||
| + | [[Category:Digital image formats]] | ||
Latest revision as of 11:47, 21 April 2016
In computing, JPEG (/ˈdʒeɪpɛɡ/ jay-peg) (seen most often with the .jpg or .jpeg filename extension) is an image file format.
Description
JPEG is a lossy format. Editing the file causes information to be lost: the quality of the image is lower after editing.
JPEG supports compression (reduction of file size). Compression reduces image quality (JPEG is lossy).
The degree of compression can be adjusted, allowing a tradeoff between storage size and image quality.
Compression is a compromise between reduced file size and acceptable reduced image quality.
JPEG compression is used in a number of image file formats. JPEG/Exif is the most common image format used by digital cameras and other photographic image capture devices; along with JPEG/JFIF, it is the most common format for storing and transmitting photographic images on the World Wide Web. These format variations are often not distinguished, and are simply called JPEG.
The term "JPEG" is an acronym for the Joint Photographic Experts Group, which created the standard. The MIME media type for JPEG is image/jpeg (defined in RFC 1341), except in older Internet Explorer versions, which provides a MIME type of image/pjpeg when uploading JPEG images.
JPEG/JFIF supports a maximum image size of 65535×65535 pixels, hence up to 4 gigapixels (for an aspect ratio of 1:1).
See also
Exterior Links
- JPEG @ Wikipedia
