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I have a large number of ECW format raster images and would like to use with GDAL (and ultimately in QGIS) on Mac OSX.

Having seen that there is no official ESRI support for the ECW library on any other platform other than Windows, I managed to get hold of the old version of the libecwj2-3.3 library. There are a few versions knocking around, but none of them will successfully compile.

Anyone had any success compiling the ECW library on OSX (10.6.7) and then compiling GDAL with ECW support.

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Can you please help me with ECW plugin. I downloaded it, went into the folder installed it, but nothing happened what do i do after the installation part? Thanks in advance* – user22380 Sep 26 '13 at 23:01
Mimi, this is not an answer to the posted question. It is a question in and of itself, and therefore, should be posted as such. Doing so will both make it easier for other users of the site to provide answers to you, but also allow other people with a similar problem, to find your question and any answers that may arise to it. – Get Spatial Sep 27 '13 at 0:40
This does not really answer the question. If you have a different question, you can ask it by clicking Ask Question. You can also add a bounty to draw more attention to this question once you have enough reputation. – PolyGeo Sep 27 '13 at 0:47
up vote 2 down vote accepted

See here:

you will need to install a "plugin" and then add (compiling I guess) the support into GDAL (using the SDK you MUST download from ERDAS, after accepting their license). For Linux the SDK is no more available (in the ERDAS site), and I don't remember to have seen something for OsX recently.

Good luck.

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Thanks. I had installed from here but didn't see that there was a ECW plugin package available (under Individual Frameworks / GDLA). This is not included in the GDAL Complete package. Installed this and voilà, ECW format now supported. – Jon Bartlett Jun 12 '11 at 14:01

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