69th Meeting - Warsaw, Poland - JPEG Committee initiates standardization of JPEG XS, a low-latency lightweight image coding system - July 9, 2015

Document WG1N69024

JPEG Committee initiates standardization of JPEG XS, a low-latency lightweight image coding system

The 69th meeting of JPEG Committee was held on June 22-26, 2015 in Warsaw, Poland.

JPEG XS — Today’s industrial applications often imply transport and storage of uncompressed images and video. This is for instance the case in video links (SMPTE Serial Digital Interface), IP transport (SMPTE 2022 5/6 & proprietary uncompressed RTPs), Ethernet transport (IEEE/AVB), proprietary transports, and memory buffers. In this context, the JPEG XS low-latency lightweight coding system will aim at increasing resolution and frame rate while assuring visual quality and keeping power and bandwidth within a reasonable budget. The goal of JPEG XS is to provide a highly interoperable solution. The JPEG Committee invites interested parties, and in particular coding experts, codec providers, system integrators or potential users of expected solutions to contribute to this effort. This includes definitions of requirements, evaluation procedures, and/or technology proposals. A Call for Proposals is expected to be published at the 71th JPEG meeting (La Jolla, CA, Feb 2016). In preparation to this call, interested parties are invited to attend JPEG committee meetings, and to subscribe to the JPEG XS reflector by sending a corresponding request to .

JPEG PLENO — This activity is targeting a standard framework for the representation and exchange of new imaging modalities such as – but not limited to – light-field, point-cloud and holographic imaging. In addition to the representation, it is also a target to define new tools for improved compression while providing advanced functionality support for image manipulation, metadata, image access and interaction, privacy and security. Since the JPEG committee intends to interact closely with actors in conventional and emerging imaging solutions, a well-attended workshop was organized during the JPEG meeting in Warsaw, targeted to understanding industry needs in terms of technology and supported functionalities. The proceedings can be downloaded from the JPEG website. JPEG invites interested parties to join this standardization activity. Interested parties are encouraged to attend JPEG meetings, and to subscribe to the reflector by sending a corresponding request to .

JPEG Privacy & Security — The JPEG committee investigates solutions to assure privacy and security when sharing photos on social networks, (stock) photography databases, etc. JPEG Privacy & Security will provide new functionality to JPEG encoded images such as ensuring privacy, maintaining data integrity, and protecting intellectual rights, while maintaining backwards and forward compatibility to existing JPEG legacy solutions. To collect input from the actors in this field, a public workshop on JPEG Privacy & Security is organized on October 13th, 2015 during the next JPEG meeting in Brussels. Additional information for the workshop is available on

JPEG XT — The JPEG committee is happy to announce that JPEG XT Part 3 – File Format progressed to the stage of International Standard, and that at the same time Parts 6 and 7 progressed to the “Final Draft” (FDIS) stage. JPEG XT is a backwards compatible extension to the popular JPEG image coding system. The extensions in Parts 6 and 7 address the market needs for improved sample precision and high dynamic range photography while staying compatible to existing applications, which will continue to display and render JPEG XT files correctly on JPEG legacy decoders. JPEG XT Part 8 progressed to “Draft International Standard”; it enables lossless coding, addressing the needs of professional photographers to keep images unaltered, baring any compression defects. Part 9 of JPEG XT adds the long missing feature of including opacity data in JPEG images and hence allows more flexible layout, such as in web pages. Similar to Part 8, it entered the stage of Draft International Standard. A reference implementation of JPEG XT is made available on; it is itself a part of the standardization initiative and entered the Committee Draft stage.

JPEG XR — The JPEG committee also progressed the standardization stage of the reference software implementation of JPEG XR, an enhanced but lower complexity image compression format. The source code is available on for download.

JPEG 2000 — The JPEG Committee has approved the adoption of a new reference software for JPEG 2000 Part 1 (aka Rec. ITU-T T.800 | ISO/IEC 15444-1), namely the OpenJPEG library. OpenJPEG is a project, initiated at UCL (Université catholique de Louvain, Belgium), proposing an open-source JPEG 2000 codec written in C, available under the 2-clauses BSD license. More information can be found on the OpenJPEG website (

“JPEG Standards have been successfully deployed in broadcasting and digital cinema standards. Our recent interactions with organizations such as VESA, SMPTE and the Video Services Forum (VSF), and explicit requests from industry made the need for an efficient low-latency, light-weight image compression system apparent. We invite all interested parties to join this game changing activity”, said Prof. Touradj Ebrahimi, the Convener of the JPEG committee.

About JPEG

The Joint Photographic Experts Group (JPEG) is a Working Group of ISO/IEC, the International Organization for Standardization / International Electrotechnical Commission, (ISO/IEC JTC 1/SC 29/WG 1) and of the International Telecommunication Union (ITU-T SG16), responsible for the popular JPEG, JPEG 2000, JPEG XR, JPSearch and more recently, the JPEG XT, JPEG Systems and JPEG AR families of imaging standards.

The WG1 group meets nominally three times a year, in Europe, North America and Asia. The next (70th) WG 1 Meeting and its ad hoc group meetings will be held on October 12-16, 2014, in Brussel, Belgium and will be hosted by Vrije Universiteit Brussel, iMinds and IntoPIX.

More information about JPEG and its work is available at or by contacting Peter Schelkens and Fumitaka Ono of the JPEG PR subgroup at .

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