[Gdal-dev] Conversion of paletted PNG to ECW does not work

Brent Fraser bfraser at geoanalytic.com
Tue Jul 3 15:24:59 EDT 2007


Frank,

  Do you know if a bug was ever filed for this? (I have the
same problem with paletted tiffs)

Brent Fraser
GeoAnalytic Inc.
Calgary, Alberta

----- Original Message ----- 
From: "Frank Warmerdam" <warmerdam at pobox.com>
To: "Jean-Claude Repetto"
<jean-claude.repetto at worldonline.fr>
Cc: <gdal-dev at lists.maptools.org>
Sent: Tuesday, December 19, 2006 8:01 PM
Subject: Re: [Gdal-dev] Conversion of paletted PNG to ECW
does not work


> Jean-Claude Repetto wrote:
> > Hello Frank,
> >
> > Thanks for your answer. I understand that ECW does not
support palettes,
> > but I think gdal_translate should :
> > - either convert the image to 24bit before converting it
to ECW
> > - either print an error message and stop.
>
> Jean-Claude,
>
> I agree that the ECW CreateCopy() method ought to report
at least a warning
> that the color table is being ignored.  If you file a bug
on this, I can get
> it fixed at some point.
>
> Best regards,
> -- 
> ---------------------------------------+------------------
--------------------
> I set the clouds in motion - turn up   | Frank Warmerdam,
warmerdam at pobox.com
> light and sound - activate the windows |
http://pobox.com/~warmerdam
> and watch the world go round - Rush    | President OSGeo,
http://osgeo.org
>
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