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TIF to ECW: Keeping nodata value on ECW

  • September 2, 2025
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I want to transform a geotiff to an ecw while removing the nodata. The geotiff has just one band (band 0: Gray8). I do not have a clipper, so I think cannot use option 2 or 3 mentioned here, but only the first: use a rasterbandnodatasetter.

So I used a rasterbandnodatasetter to set 0 as nodata, but when writing to the ECW this is not retained and still a black border is shown around the georeferenced image.

What should I do to remove it definitely?

 

Best answer by ares

Nevermind. I created a clipper by hand as a new polygon layer in QGIS to have a clipper. Now option 3 works. Solved.

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  • aresContributor
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  • September 2, 2025

Nevermind. I created a clipper by hand as a new polygon layer in QGIS to have a clipper. Now option 3 works. Solved.

nielsgerrits
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