Overview
FrançaisABSTRACT
This article describes the suite of the picture compression format JPEG2000 standards. The container formats used to wrap the generated codestreams are presented. The performance of the codec for both still and motion pictures is illustrated. The article concludes with an overview of the various domains of application.
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Read the articleAUTHORS
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Jean-Noël GOUYET: Training engineer and consultant in digital media techniques and management - Former head of research at Ina (Institut national de l'audiovisuel)
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Marc LEGER: Graduate of the École nationale supérieure Louis-Lumière. - Camera operator, vision engineer. - Head of video training - Ina EXPERT
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Christophe NELSON: Digital video techniques trainer - Ina EXPERT
INTRODUCTION
When it comes to image compression, the first standard that springs to mind is JPEG. Created in 1991, this standard is one of the most widely used in the field of photographic image compression. It is still very effective when used at low to medium compression ratios, but the poor quality of images obtained at higher compression ratios, as well as its lack of flexibility and functionality, testify to its inability to satisfy all the requirements of today's applications, particularly professional ones. With this in mind, the JPEG 2000 image compression format was developed in 2000.
After a first article
the JPEG 2000 family of standards ;
Container formats used to encapsulate, store or transport images encoded in JPEG 2000 ;
performance against JPEG and other codecs for still and moving images;
applications in the fields of digital imaging, digital cinema and video, particularly in the areas of archiving and distribution.
Many terms and the text of some figures have been kept in English (in italics in the text), to facilitate the reading and use of technical documents. Numerous references, lists of norms, standards and recommendations as well as organizations, are provided in the "For further information" document.
A list of abbreviations and acronyms can be found at the end of this article (§ 6 ).
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KEYWORDS
wavelets | standards | Discrete Wavelet Transform DWT | entropy coding | coding | container-formats
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Signal processing and its applications
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JPEG 2000, wavelet-based digital image compression format
Bibliography
Tutorial
Standards, profiles, features
Software tools (non-exhaustive list)
Adobe Photoshop https://www.adobe.com/fr/products/photoshop.html
Aware JPEG 2000 http://www.aware.com/imaging/index.html
Standards and norms
- Fichiers d'exploitation et d'échange des œuvres cinéma - CST-RT021-part1 - 2013
- Specification Format Mezzanine - CST-RT021-part2 - 2013
- Digital cinema system specification version 1.2 http://www.dcimovies.com/DCIDigital CinemaSystemSpecv1_2.pdf - DCI 2005-2012 - 10-12
- Digital Video Broadcasting (DVB) ; specification for the use of video and audio coding in broadcasting applications based on the...
Directory
Manufacturers – JPEG 2000 circuit integrators (non-exhaustive list)
Alma-Technologies https://www.alma-technologies.com/ip-core.JPEG-2000
Barco-Silex http://www.barco-silex.com/ip-cores/jpeg2000
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