[Qgis-user] Re: QGIS 1.5 Update for ECW/SID support crashes

[Giovanni Manghi]

This

http://www.gaia-gis.it/raster_benchmark/

may interest you


cheers

-- Giovanni --


> >
> Maybe one day Jpeg2000 will get to the quality and stability 
> of ECW. But AFAIK, the open source drivers are still pretty 
> much alpha quality. I'd be pleased to hear that I am wrong in 
> making that statement.  The good JP2K driver is the Kakadu 
> proprietary one :-( supplied together with ECW.
> Converting compressed images back to GeoTiff means sometimes a 
> 50X (!) increase in file size. With HiRes ortho-photos that 
> becomes quite a burden on disk size, even with today's disk sizes.
> So I still think we're unfortunately stuck with ECW for a 
> while (at least till a good OSS library for jpeg2000 matures).
> 
>