Difference between revisions of "ECW"

From OpenJUMP Wiki
Jump to navigation Jump to search
Line 5: Line 5:
 
ECW is a proprietary wavelet compression image format optimized for aerial and satellite imagery. See complete article about [http://en.wikipedia.org/wiki/ECW_%28file_format%29 ECW in wikipedia].  
 
ECW is a proprietary wavelet compression image format optimized for aerial and satellite imagery. See complete article about [http://en.wikipedia.org/wiki/ECW_%28file_format%29 ECW in wikipedia].  
  
== ECW OpenJUMP reader ==
+
== ECW Read Support ==
  
=== Old ECW Reader ===
+
A new version of ECW support based on ERDAS ECW/JP2 SDK version 3.3 is available since OpenJUMP 1.4.3.
To read ECW images, OpenJUMP needs proprietary code from [[http://www.erdas.com/Homepage.aspx ERDAS Er Mapper]]. Until version 1.4.2 (version 1.4.2 included), OpenJUMP relyed on ermapper.jar, a library containing glue code between OpenJUMP code and ermapper ''dll''s. To be able to read ecw files. This library, which has to be in the lib directory, has dependencies on three ''dll''s which have to be in ext directory :
+
One advantage of the new SDK is that it gives also access to [[JPEG2000]] format.
* ''NcsCnet.dll''
+
It is included by default into the PLUS edition of OpenJUMP.
* ''NCSEcw.dll''
+
You can however add them manually to OpenJUMP CORE if you want to.
* ''NCSUtil.dll''
 
These dll are no more available on Erdas website. A new SDK is downloadable from [http://www.erdas.com/products/ecw/ERDASECWJPEG2000SDK/Downloads.aspx ERDAS] as part of the ERDAS ECW/JP2 SDK, but it is not compatible with the ermapper.jar.
 
Old versions of dll required by ermapper.jar are still available here and there on the web (see  [http://people.ok.ubc.ca/mberger/MiscSW/IrfanView/Plugins/Ecw/ Irfanview] Ecw plugin).
 
  
'''Note''': The last ECW SDK found on [[http://www.erdas.com/Homepage.aspx ERDAS]] website is not compatible with ermapper.jar available in OpenJUMP distribution until OpenJUMP 1.4.2 version, and it seems that ERDAS ER Mapper does not maintain this old java wrapper.
+
=== Download ===
 
 
=== New ECW Reader ===
 
A new version of ECW reader based on ERDAS ECW/JP2 SDK version 3.3 is made available from OpenJUMP 1.4.3.
 
One advantage of the new SDK is that it gives also access to [[JPEG2000]] format.
 
  
TO BE COMPLETED (installation, ecw on LINUX...)
+
Download it here and follow the instruction of the included readme.txt file
 +
http://sourceforge.net/projects/jump-pilot/files/OpenJUMP_plugins/Drivers/ECW_JP2_Support_for_OpenJUMP-20120620.zip
  
 
== Interesting links about ECW ==
 
== Interesting links about ECW ==

Revision as of 18:35, 20 June 2012

back to Working with Raster page

ECW File format

ECW is a proprietary wavelet compression image format optimized for aerial and satellite imagery. See complete article about ECW in wikipedia.

ECW Read Support

A new version of ECW support based on ERDAS ECW/JP2 SDK version 3.3 is available since OpenJUMP 1.4.3. One advantage of the new SDK is that it gives also access to JPEG2000 format. It is included by default into the PLUS edition of OpenJUMP. You can however add them manually to OpenJUMP CORE if you want to.

Download

Download it here and follow the instruction of the included readme.txt file

http://sourceforge.net/projects/jump-pilot/files/OpenJUMP_plugins/Drivers/ECW_JP2_Support_for_OpenJUMP-20120620.zip

Interesting links about ECW

WCS issues from deegree website (2007)

Use of ecw in gdal

Licensing discussion

See OpenJUMP_Licensing