JPEG

JPEG (/ˈdʒeɪpɛɡ/ JAY-peg) is a commonly used method of lossy compression for digital images, particularly for those images produced by digital photography. The degree of compression can be adjusted, allowing a selectable tradeoff between storage size and image quality. JPEG typically achieves 10:1 compression with little perceptible loss in 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 abbreviation for the Joint Photographic Experts Group, which created the standard. The MIME media type for JPEG is image/jpeg, except in older Internet Explorer versions, which provides a MIME type of image/pjpeg when uploading JPEG images. JPEG files usually have a filename extension of .jpg or .jpeg.

JPEG (disambiguation)

A JPEG is a method of compression of digital photographs.

JPEG or JPG may also refer to:

See also

JPEG 2000

JPEG 2000 (JP2) is an image compression standard and coding system. It was created by the Joint Photographic Experts Group committee in 2000 with the intention of superseding their original discrete cosine transform-based JPEG standard (created in 1992) with a newly designed, wavelet-based method. The standardized filename extension is .jp2 for ISO/IEC 15444-1 conforming files and .jpx for the extended part-2 specifications, published as ISO/IEC 15444-2. The registered MIME types are defined in RFC 3745. For ISO/IEC 15444-1 it is image/jp2.

JPEG 2000 code streams are regions of interest that offer several mechanisms to support spatial random access or region of interest access at varying degrees of granularity. It is possible to store different parts of the same picture using different quality.

Aims of the standard

While there is a modest increase in compression performance of JPEG 2000 compared to JPEG, the main advantage offered by JPEG 2000 is the significant flexibility of the codestream. The codestream obtained after compression of an image with JPEG 2000 is scalable in nature, meaning that it can be decoded in a number of ways; for instance, by truncating the codestream at any point, one may obtain a representation of the image at a lower resolution, or signal-to-noise ratio – see scalable compression. By ordering the codestream in various ways, applications can achieve significant performance increases. However, as a consequence of this flexibility, JPEG 2000 requires encoders/decoders that are complex and computationally demanding. Another difference, in comparison with JPEG, is in terms of visual artifacts: JPEG 2000 only produces ringing artifacts, manifested as blur and rings near edges in the image, while JPEG produces both ringing artifacts and 'blocking' artifacts, due to its 8×8 blocks.

Typical

"Typical" is the debut single from New Orleans rock group Mutemath. The song was written in 2003 by Paul Meany and Darren King. The digital single was released on April 10, 2007. A physical single was released in the UK only on August 27, 2007. Josh Harris club remixes of the song were also released digitally to several outlets on September 18, 2007. The song is also featured as downloadable content for the Rock Band series of video games. The song was also featured in the 2009 film, The Stepfather.

Television and radio

The group has performed the song on both ABC's Jimmy Kimmel Live! and CBS' The Late Late Show with Craig Ferguson and the video began rotation on MTV Networks in May 2007 beginning with MTVu. An edited form of the song was featured on an advertisement for the Discovery Channel in the spring of 2008. It was also used in a promo for HBO in 2007.

As of late June, the single started receiving major airplay in Modern Rock and rose quickly up the Mediabase Alternative chart jumping from #115 to #65 and was also the second most added song on Alternative stations the week of June 13, 2007. The single then jumped to a peak position of #36 the first week of August 2007, remaining there for over 6 weeks and debuted at #39 on Billboard's US Modern Rock Chart the week of August 4, 2007 where it reached a peak position of #33.

Typical (album)

Typical is a live album by Peter Hammill, recorded in 1992 and released in 1999. It is a double CD and was released on Hammill's own Fie! Records label. The album was recorded at nine concerts in Austria, Germany, the Netherlands and Italy.

Track listing

Personnel

References