[gdal-dev] Convert ECW to TIFF

[Jorge Santos]

Hi Zoltan,

*GDAL_TRANSLATE: CONVERT ECW to GEOTIFF* (type these commands in FWTools
Shell or OSGeo4W Shell):

*ONE FILE*

gdal_translate -of ECW -co TARGET=0 -a_srs EPSG:4326 input.tif output.ecw

*A FOLDER WITH MANY FILES*

for %f in (*.ecw) do gdal_translate -of ECW -co TARGET=0 -a_srs EPSG:4326
%f %~nf.tif

You need to inform the EPSG Code for output files.

EPSG 4326 = Geographic Coordinate System WGS 1984.

Source

http://www.gdal.org/gdal_translate.html

Good Luck! Jorge Santos


2012/2/17 Zoltan Szecsei <zoltans at geograph.co.za>

> Hi,
> I have a bunch of ecw images that I need to convert to tif+worldfile.
>
> I therefore need to recompile gdal against the ecw libraries, but the only
> file I can download from Intergraph/Erdas website is:
> ECWJP2SDKSetup_RO_20110303.exe
> which is a Windows install of the SDK.
>
> How do I do this for Linux?
> (Want to batch convert them on ubuntu 10.04)
>
> On another note, I notice that the xml files received with the ecw images
> only have projection info in them, and not the georeferencing info.
> Is the georeferencing info embedded in the ecw files (like geotiff)? I
> tried looking in the ecw file with a binary editor, but saw nothing obvious.
>
> TIA,
> Zoltan
>
>
> --
>
> ==============================**=============
> Zoltan Szecsei PrGISc [PGP0031]
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