Editing JPEG 2000 (section)

===Motion JPEG 2000===
{{main|Motion JPEG 2000}}
[[Motion JPEG 2000]], (MJ2), originally defined in Part 3 of the ISO Standard for JPEG2000 (ISO/IEC 15444-3:2002,) as a standalone document, has now been expressed by ISO/IEC 15444-3:2002/Amd 2:2003 in terms of the ISO Base format, ISO/IEC 15444-12 and in [[ITU-T]] Recommendation T.802.<ref>{{cite web | url=http://www.itu.int/rec/T-REC-T.802/en | title=T.802 : Information technology – JPEG 2000 image coding system: Motion JPEG 2000 | date=January 2005 | access-date=2009-11-01}}</ref> It specifies the use of the JPEG 2000 format for timed sequences of images (motion sequences), possibly combined with audio, and composed into an overall presentation.<ref name="ISO-15444-3">{{cite web
 | url = http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=41570
 | author = International Organization for Standardization
 | title = ISO/IEC 15444-3:2007, Information technology – JPEG 2000 image coding system: Motion JPEG 2000
 | year = 2007
 | access-date = 2009-06-11 }}</ref><ref>{{cite web | url=http://www.jpeg.org/jpeg2000/j2kpart3.html | title=Motion JPEG 2000 (Part 3) | author=JPEG | year=2007 | access-date=2009-11-01 | url-status=dead | archive-url = https://web.archive.org/web/20121005163250/http://jpeg.org/jpeg2000/j2kpart3.html | archive-date=2012-10-05 }}</ref> It also defines a file format,<ref>{{cite web |url = http://www.itu.int/dms_pubrec/itu-t/rec/t/T-REC-T.802-200501-I!!SUM-HTM-E.htm |title = T.802 : Information technology – JPEG 2000 image coding system: Motion JPEG 2000 – Summary |author = ITU-T |access-date=2010-09-28 }}</ref> based on ISO base media file format (ISO 15444-12). Filename extensions for Motion JPEG&nbsp;2000 video files are '''.mj2''' and '''.mjp2''' according to RFC 3745.

It is an open [[International Organization for Standardization|ISO]] standard and an advanced update to [[MJPEG]] (or MJ), which was based on the legacy [[JPEG]] format. Unlike common video formats, such as [[MPEG-4 Part 2]], [[Windows Media Video|WMV]], and [[H.264/MPEG-4 AVC|H.264]], MJ2 does not employ temporal or inter-frame compression. Instead, each frame is an independent entity encoded by either a lossy or lossless variant of JPEG&nbsp;2000. Its physical structure does not depend on time ordering, but it does employ a separate profile to complement the data. For audio, it supports [[LPCM]] encoding, as well as various MPEG-4 variants, as "raw" or complement data.<ref>{{Cite web|url=http://www.jpeg.org/jpeg2000/j2kpart3.html|archive-url=https://web.archive.org/web/20121005163250/http://jpeg.org/jpeg2000/j2kpart3.html|url-status=dead|title=Motion JPEG 2000 (Part 3)|archive-date=October 5, 2012}}</ref>

Motion JPEG 2000 (often referenced as MJ2 or MJP2) is considered as a digital archival format<ref>[https://www.loc.gov/preservation/digital/formats/fdd/fdd000127.shtml Motion JPEG 2000 mj2 File Format]. Sustainability of Digital Formats Planning for Library of Congress Collections.</ref> by the [[Library of Congress]] though MXF_OP1a_JP2_LL (lossless JPEG&nbsp;2000 wrapped in MXF operational pattern 1a) is preferred by the LOC Packard Campus for Audio-Visual Conservation.