JPEG2000 - Revision history

Courtney at 20:53, 19 February 2013

2013-02-19T20:53:12Z

Courtney: /* More information */

2013-02-12T21:30:35Z

More information

Evelyn McLellan at 20:17, 7 April 2011

2011-04-07T20:17:51Z

Misty De Meo: Preservation Issues

2011-04-07T19:32:19Z

Preservation Issues

Evelyn McLellan at 22:11, 29 March 2011

2011-03-29T22:11:17Z

Show changes

Misty De Meo at 19:03, 23 March 2011

2011-03-23T19:03:17Z

Misty De Meo: Reparent "more information"

2011-03-23T19:01:59Z

Reparent "more information"

Misty De Meo: JP2-MXF video

2011-03-23T18:34:40Z

JP2-MXF video

Evelyn McLellan at 21:58, 24 February 2011

2011-02-24T21:58:05Z

Evelyn McLellan at 21:27, 1 December 2010

2010-12-01T21:27:25Z

← Older revision		Revision as of 20:53, 19 February 2013
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−	[[Main Page]] > [[Documentation]] > [[~~Media type preservation plans~~]] > JPEG2000	+	[[Main Page]] > [[Documentation]] > [[Format policies]] > JPEG2000

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 ===More information===
 *[http://www.updig.org/guidelines/ph_archiving.html Universal Photographic Digital Imaging Guidelines: Archiving] and [http://www.dpconline.org/docs/reports/dpctw08-01.pdf Technology Watch Support:JPEG 2000 - a Practical Digital Preservation Standard? Digital Preservation Coalition 2008].
 *[http://www.digitalpreservation.gov/formats/fdd/fdd000143.shtml Library of Congress Sustainability of Digital Formats: JPEG 2000 Part 1 (Core) jp2 File Format]

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 *JPEG2000 image compression ranges from completely lossless to very lossy.
 *Florida digital Archive has "high confidence level" in ability to preserve losslessly compressed JP2 files: [http://www.fcla.edu/digitalArchive/formatInfo.htm FDA Recommended Data File Formats].
-*JPEG2000 has limited support for colour profiles: [http://jpeg2000wellcomelibrary.blogspot.com/2010/12/guest-post-ensuring-suitability-of-jpeg.html].
+*JPEG2000 has limited support for colour profiles: See [http://jpeg2000wellcomelibrary.blogspot.com/2010/12/guest-post-ensuring-suitability-of-jpeg.html Ensuring the suitability of JPEG 2000 for preservation].
 ===More information===
 *[http://www.updig.org/guidelines/ph_archiving.html Universal Photographic Digital Imaging Guidelines: Archiving] and [http://www.dpconline.org/docs/reports/dpctw08-01.pdf Technology Watch Support:JPEG 2000 - a Practical Digital Preservation Standard? Digital Preservation Coalition 2008].
 *[http://www.digitalpreservation.gov/formats/fdd/fdd000143.shtml Library of Congress Sustainability of Digital Formats: JPEG 2000 Part 1 (Core) jp2 File Format]

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 *JPEG2000 image compression ranges from completely lossless to very lossy.
 *Florida digital Archive has "high confidence level" in ability to preserve losslessly compressed JP2 files: [http://www.fcla.edu/digitalArchive/formatInfo.htm FDA Recommended Data File Formats].
 ===More information===
 *[http://www.updig.org/guidelines/ph_archiving.html Universal Photographic Digital Imaging Guidelines: Archiving] and [http://www.dpconline.org/docs/reports/dpctw08-01.pdf Technology Watch Support:JPEG 2000 - a Practical Digital Preservation Standard? Digital Preservation Coalition 2008].
 *[http://www.digitalpreservation.gov/formats/fdd/fdd000143.shtml Library of Congress Sustainability of Digital Formats: JPEG 2000 Part 1 (Core) jp2 File Format]

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 Requirements:
-GStreamer ([http://gstreamer.freedesktop.org])
+*GStreamer ([http://gstreamer.freedesktop.org])
-gst-plugins-bad
+*gst-plugins-bad
 The GStreamer debug utility is based around a chain of smaller tools
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 encoded video. This example does:
-*filesrc location=video.mov : Tells gst-launch where to find the source
+*filesrc location=video.mov : Tells gst-launch where to find the source video
-video
+*qtdemux : Demultiplexes the video. This means that it "opens" the container and extracts the tracks inside it, making them available to the other GStreamer tools
-*qtdemux : Demultiplexes the video. This means that it "opens" the
+*pngdec : Decodes PNG compressed video into uncompressed video
-container and extracts the tracks inside it, making them available to the
+*ffmpegcolorspace : Interprets the colour space in the video. Necessary to be able to pass it to other tools
-other GStreamer tools
+*videoscale : Negotiates the size of the video. When used with no arguments, it just ensures the next tool knows what the size is
-*pngdec : Decodes PNG compressed video into uncompressed video
+*jp2kenc : Encodes the video stream to JPEG 2000. You can specify the settings here if you want
-*ffmpegcolorspace : Interprets the colour space in the video. Necessary to
+*mxfmux : Combines (multiplexes) the streams being processed into an MXF container
-be able to pass it to other tools
+*filesink location=video.mxf : Saves the video to a "filesink", e.g. a location on the hard drive
 The exact commands will depend on the source video. You can also do a
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 Requirements:
-GStreamer
+*GStreamer
-gstreamer-plugins-bad
+*gstreamer-plugins-bad
-FFmpeg
+*FFmpeg
-OpenJPEG
+*OpenJPEG
 As I mentioned before, GStreamer's JP2 encoder isn't ideal right now.

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 ===Preservation action plan===
-Convert lossily compressed JPEG2000 images to losslessly compressed JPEG2000
+See [[Raster images]]
 ===Preservation issues===
 *JPEG2000 image compression ranges from completely lossless to very lossy.
 *Florida digital Archive has "high confidence level" in ability to preserve losslessly compressed JP2 files: [http://www.fcla.edu/digitalArchive/formatInfo.htm FDA Recommended Data File Formats].
 ===More information===