Difference between revisions of "JPEG"

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Sometimes, there are no new improvements just besacue we already have the best there is   I mean, nobody wants to change C language although it is as old as I am.But I agree jpeg can be improved  in the earth observation business, satellite pictures now use wavelet compression. Somehow I believe this is where the new formats will be going (apparently, that's what jpeg2000 chose).I have a request: could you (some day, no hurry) cover the issue of digital images storage durability (formats, mediums, crashes). I cannot help worrying about the photographic memory lost each day to faulty hard disks or unreadable CDs. Where would history be if all we could find from grandpa's attic were XIXth century broken hard drives or CD-RWs with the reflective layer peeling off, with digital pictures in a proprietary binary format by an obscure computer tycoon gone bankrupt during the great depression?
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JPEG is the most popular image format and is used extensively on the web especially for displaying photos or images with many colours. The name stands for Joint Photographic Experts Group, the standards body that created and maintains the format specification.
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As opposed to the [[GIF]] format, JPEG uses lossy compression so when it is saved at low quality, the image can appear blocky or blurred. High quality JPEG images can have very large file sizes. JPEG does not support transparency or animation.
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[[PNG]] is another format that is gaining popularity, particularly in the [[open source]] sector.
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See also: [[TIFF]]
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[[Category:Jargon]][[Category:Technical]]

Latest revision as of 13:02, 19 November 2013

JPEG is the most popular image format and is used extensively on the web especially for displaying photos or images with many colours. The name stands for Joint Photographic Experts Group, the standards body that created and maintains the format specification.

As opposed to the GIF format, JPEG uses lossy compression so when it is saved at low quality, the image can appear blocky or blurred. High quality JPEG images can have very large file sizes. JPEG does not support transparency or animation.

PNG is another format that is gaining popularity, particularly in the open source sector.

See also: TIFF

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