Hi Even,
thanks for your response.
I just tried it with WEBP, but I'm getting the following error message:
Warning 6: 'WEBP' is an unexpected value for COMPRESS creation option of type string-select.
Warning 6: driver GTiff does not support creation option WEBP_LEVEL
ERROR 1: Cannot create TIFF file due to missing codec for WEBP.
Warning 6: driver GTiff does not support creation option WEBP_LEVEL
ERROR 1: Cannot create TIFF file due to missing codec for WEBP.
The docs says: Requires libwebp >= 0.1.4
I'm using the compiled binaries from gisinternals.com (v.3.9.3) and it seems the webp isn't supported with it.
Do I need to compile the dependency myself and simply copy it into the
And how do you compile it? I'm new to this topic—sorry about that.
bin folder?And how do you compile it? I'm new to this topic—sorry about that.
Gesendet: Dienstag, 27. Mai 2025 um 21:43
Von: "Even Rouault" <even.roua...@spatialys.com>
An: "carsten.lockenkoet...@web.de" <carsten.lockenkoet...@web.de>, "gdal-dev@lists.osgeo.org" <gdal-dev@lists.osgeo.org>
Betreff: Re: [gdal-dev] Black artifacts with JPEG compression
No, you're just hitting a fundamental limitation of JPEG compressonAm I overlooking something in my process?
Do you have any ideas on how I can get rid of the artifacts while still keeping disk usage low?
Use lossy WEBP compression that fully supports transparency.
-- http://www.spatialys.com My software is free, but my time generally not.
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