Meta Raster Format - Revision history

Jsummers at 16:07, 16 November 2020

2020-11-16T16:07:55Z

Johanvanderknijff at 13:41, 21 January 2016

2016-01-21T13:41:45Z

Johanvanderknijff at 13:22, 21 January 2016

2016-01-21T13:22:54Z

Johanvanderknijff at 12:22, 21 January 2016

2016-01-21T12:22:15Z

Johanvanderknijff: /* Links */

2016-01-21T12:12:43Z

‎Links

Johanvanderknijff: Created page with "{{FormatInfo |formattype=electronic |subcat=Geospatial |extensions={{ext|mrf}}, {{ext|ppg}}, {{ext|pjg}}, {{ext|idx}} }} '''Meta Raster Format''' is an image and data storage ..."

2016-01-21T12:09:56Z

Created page with "{{FormatInfo |formattype=electronic |subcat=Geospatial |extensions={{ext|mrf}}, {{ext|ppg}}, {{ext|pjg}}, {{ext|idx}} }} '''Meta Raster Format''' is an image and data storage ..."

New page

{{FormatInfo
|formattype=electronic
|subcat=Geospatial
|extensions={{ext|mrf}}, {{ext|ppg}}, {{ext|pjg}}, {{ext|idx}}
}}
'''Meta Raster Format''' is an image and data storage format designed for fast access to imagery within a georeferenced tile pyramid at discrete resolutions. It was originally developed at NASA's Jet Propulsion Laboratory.

It is a composite format, with an image consisting of 3 components:

# MRF metadata file in XML format (file extension: .mrf)
# MRF data file. This is either a "Pile of PNGs" (file extension: .ppg) or a "Pile of JPEGS" (file extension: pjg). The data file contains blocks of concatenated images in [[PNG]] or [[JPEG]] format.
# MRF index file (file extension: .idx)

In addition, recent versions of the format are reported to support [https://github.com/Esri/lerc Limited Error Raster Compression] (LERC), which was developed at ESRI. However, the current (January 2015) version of the filespec does not mention LERC yet.

== Specification ==

* [https://github.com/nasa-gibs/mrf/blob/master/spec/mrf_spec.md Meta Raster Format Specification v0.3.0 (Draft)]

== Software ==

* [https://github.com/nasa-gibs/mrf Meta Raster Format driver for GDAL]

== Links ==

* [https://github.com/nasa-gibs/mrf/blob/master/src/gdal_mrf/frmts/mrf/docs/MUG.docx?raw=true Meta Raster Format User Guide]
* [https://gcn.com/blogs/emerging-tech/2016/01/nasa-esri-image-storage.aspx NASA, Esri speed delivery of cloud-based imagery data]

← Older revision		Revision as of 12:22, 21 January 2016
Line 27:		Line 27:
	* [https://gcn.com/blogs/emerging-tech/2016/01/nasa-esri-image-storage.aspx NASA, Esri speed delivery of cloud-based imagery data]		* [https://gcn.com/blogs/emerging-tech/2016/01/nasa-esri-image-storage.aspx NASA, Esri speed delivery of cloud-based imagery data]
	* [https://fileformats.wordpress.com/2016/01/21/mrf-for-large-images/ MRF for large images]		* [https://fileformats.wordpress.com/2016/01/21/mrf-for-large-images/ MRF for large images]
		+	* [https://geonet.esri.com/servlet/JiveServlet/downloadBody/7473-102-1-9153/MRF_CloudOptimizedImageFormat_LERC_Compression.pdf MRF as a Cloud Optimized Raster Format and LERC Compression]

← Older revision		Revision as of 12:12, 21 January 2016
Line 26:		Line 26:
	* [https://github.com/nasa-gibs/mrf/blob/master/src/gdal_mrf/frmts/mrf/docs/MUG.docx?raw=true Meta Raster Format User Guide]		* [https://github.com/nasa-gibs/mrf/blob/master/src/gdal_mrf/frmts/mrf/docs/MUG.docx?raw=true Meta Raster Format User Guide]
	* [https://gcn.com/blogs/emerging-tech/2016/01/nasa-esri-image-storage.aspx NASA, Esri speed delivery of cloud-based imagery data]		* [https://gcn.com/blogs/emerging-tech/2016/01/nasa-esri-image-storage.aspx NASA, Esri speed delivery of cloud-based imagery data]
		+	* [https://fileformats.wordpress.com/2016/01/21/mrf-for-large-images/ MRF for large images]

@@ Line 3: / Line 3: @@
 |subcat=Geospatial
 |extensions={{ext|mrf}}, {{ext|ppg}}, {{ext|pjg}}, {{ext|idx}}
 }}
-'''Meta Raster Format''' is an image and data storage format designed for fast access to imagery within a georeferenced tile pyramid at discrete resolutions. It was originally developed at NASA's Jet Propulsion Laboratory.
+'''Meta Raster Format''' ('''MRF''') is an image and data storage format designed for fast access to imagery within a georeferenced tile pyramid at discrete resolutions. It was originally developed at NASA's Jet Propulsion Laboratory.
 It is a composite format, with an image consisting of 3 components:
-# MRF metadata file in XML format (file extension: .mrf)
+# MRF metadata file in [[XML]] format (file extension: .mrf)
-# MRF data file. This is either a "Pile of PNGs" (file extension: .ppg) or a "Pile of JPEGS" (file extension: .pjg). The data file contains blocks of concatenated images in [[PNG]] or [[JPEG]] format.
+# MRF data file. This can be a "Pile of PNGs" (file extension: .ppg) or a "Pile of JPEGS" (file extension: .pjg), in which case the data file contains blocks of concatenated images in [[PNG]] or [[JPEG]] format. Other possible formats include [[LERC]].
 # MRF index file (file extension: .idx)
 == Specification ==
-* [https://github.com/nasa-gibs/mrf/blob/master/spec/mrf_spec.md Meta Raster Format Specification v0.3.0 (Draft)]
+* [https://github.com/nasa-gibs/mrf/blob/master/spec/mrf_spec.md Meta Raster Format Specification]
 == Software ==
-* [https://github.com/nasa-gibs/mrf  Meta Raster Format driver for GDAL]
+* [https://github.com/OSGeo/gdal/tree/master/gdal/frmts/mrf Meta Raster Format driver for GDAL]
 == Links ==
-* [https://github.com/nasa-gibs/mrf/blob/master/src/gdal_mrf/frmts/mrf/docs/MUG.docx?raw=true Meta Raster Format User Guide]
+* [https://github.com/nasa-gibs/mrf MRF documentation and utilities]
 * [https://gcn.com/blogs/emerging-tech/2016/01/nasa-esri-image-storage.aspx NASA, Esri speed delivery of cloud-based imagery data]
 * [https://fileformats.wordpress.com/2016/01/21/mrf-for-large-images/ MRF for large images]
 * [https://geonet.esri.com/servlet/JiveServlet/downloadBody/7473-102-1-9153/MRF_CloudOptimizedImageFormat_LERC_Compression.pdf MRF as a Cloud Optimized Raster Format and LERC Compression]

@@ Line 12: / Line 12: @@
 # MRF index file (file extension: .idx)
-In addition, recent versions of the format are reported to support [https://github.com/Esri/lerc Limited Error Raster Compression] (LERC), which was developed at ESRI. However, the current (January 2015) version of the filespec does not mention LERC yet.
+In addition, recent versions of the format are reported to support [https://github.com/Esri/lerc Limited Error Raster Compression] (LERC), which was developed at ESRI. However, the current (checked January 2016) version of the filespec does not mention LERC yet.
 == Specification ==