Hi,

Try with gdalinfo, it should reveal the rotation. And with gdalwarp you can
convert the image into north-up.

-Jukka Rahkonen-


Lorenzo Di Giacomo wrote
> Hi, do you know why this happens when i try to merge tiles of a specific
> tiff?
> How can check if a tiff had a rotated geo transforms? And how can i fix it
> before merging it?





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