JPEG

In computing, JPEG ( /ˈdʒeɪpɛɡ/ JAY-peg) is a commonly used method of lossy compression for digital photography (image). 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 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 Internet Explorer, which provides a MIME type of image/pjpeg when uploading JPEG images.

It supports a maximum image size of 65535×65535.

Read more about JPEG:  The JPEG Standard, Typical Usage, JPEG Compression, JPEG Files, Syntax and Structure, JPEG Codec Example, Effects of JPEG Compression, Lossless Further Compression, Patent Issues, Standards

Other articles related to "jpeg":

JPEG - Standards
... which includes the Joint Photographic Experts Group and Joint Bi-level Image experts Group JPEG (lossy and lossless) ITU-T T.81, ISO/IEC 10918-1 JPEG extensions ITU-T T.84 JPEG-LS (lossless, improved ...
Tom Lane (computer Scientist) - Image Formats - Independent JPG Group (IJG)
... and distributes a widely used free library for JPEG image compression ... is arguably one of the important early open source groups and a major reason why the JPEG image format is a standard ... however was the work of the Independent JPEG Group (IJG), and Tom Lane in particular ...
Ringing Artifacts - Examples - JPEG
... JPEG compression can introduce ringing artifacts at sharp transitions, which are particularly visible in text ... JPEG uses 8×8 blocks, on which the discrete cosine transform (DCT) is performed ... They can also occur at the edge of an image since JPEG splits images into 8×8 blocks, if an image is not an integer number of blocks, the edge cannot easily be encoded, and solutions such as filling with a ...
Lizard Tech - LizardTech and Open Standards
... and has been a chief contributor in extending the capabilities of JPEG 2000 to geospatial applications ... may or may not be able to read geospatial metadata in JPEG 2000 files ... developed a geography markup language (GML) implementation of JPEG 2000 that was ratified by the OGC in February 2006 ...
Lossless JPEG
... Lossless JPEG was developed as a late addition to JPEG in 1993, using a completely different technique from the lossy JPEG standard ... It is not supported by the standard Independent JPEG Group libraries, although Ken Murchison of Oceana Matrix Ltd ... wrote a patch that extends the IJG library to support Lossless JPEG ...