gdal-ecw

• Plugin for ECW and JPEG2000 Raster Formats.
• Requires gdal
• Includes bug fix for ​GDAL ticket 2320 so that both ECW and JP2ECW drivers are registered.
• Maintainer is FrankWarmerdam.

Installing ECW SDK

The GDAL ECW Plugin requires the ECW 3.3 Runtime libraries which the end user is required to download and install directly from the Erdas Web Site directly.

Erdas Web Site: ​http://www.erdas.com/Products/ERDASProductInformation/tabid/84/currentid/1142/default.aspx

After installation, please copy the .dll files in the redistributable\vc71 directory somewhere appropriate, like C:\windows\system32. eg.

copy C:\"Program Files"\"Earth Resource Mapping"\"ECW SDK"\redistributable\vc71\*.dll C:\windows\system32

Note that downloading and installing these DLLs requires agreeing to a license. Please review the license terms carefully.

It is imperative that the VC7.1 ECW 3.3 SDK binaries be used. Any other ECW (NCS*) DLLs are unlikely to work properly. Failure to install the correct ECW libraries will normally result in a popup message reading "This application has failed to start because NCSEcw.dll was not found." or a console error report like:

C:\warmerda>gdalinfo
ERROR 1: Can't load requested DLL: C:\osgeo4w\bin\gdalplugins\gdal_ECW.dll
126: The specified module could not be found.

ERROR 1: Can't load requested DLL: C:\osgeo4w\bin\gdalplugins\gdal_ECW.dll
126: The specified module could not be found.

Usage: gdalinfo [--help-general] [-mm] [-stats] [-nogcp] [-nomd]
                [-noct] [-checksum] [-mdd domain]* datasetname