Hi Stefan,

Can you share the code to convert between ECW and JPG using GDAL?

Are there any prerequisites apart from GDAL ?

Thanks Simon

On 31/05/14 13:54, Stefan Sylla wrote:
I had the same issue. Unfortunately I did not find a way to solve it,
however, I am doing a workaround by converting the ecw-files into JPEGs
using gdal_translate (in QGIS this would be under >Raster >Conversion
 >translate). The JPEGs will have the same size as the ecw's and you get
rid of that zoom-problem and many other issues caused by ECW.

On 05/31/2014 03:41 AM, CornGiS [via OSGeo.org] wrote:
 I opened a 490mb ecw image in QGIS on my mac (using the ecw 1.10.1
GDAL-ECW plug-in & 5.1.1. ERDAS Image Compression SDK read-only for
desktop).

The ecw is loaded in less than a second, but it seems that QGIS does
not manage to completely uncompress the ecw file, as zooming in
results in a blurry picture. If I open the ecw file using IrfanView I
can zoom in without any problem and get a decent picture..

Did anybody have a similiar experience? Does anybody know how to fix
this problem? Any help is appreciated, thank you!

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