Re: [gdal-dev] PNeo pan-sharpening post 3.7.0

2023-07-15 Thread Even Rouault
There's a whole discussion starting at comment https://github.com/OSGeo/gdal/pull/7256#issuecomment-1433318699 about how the old approach implicitly assuming same georeferencing for MS and PAN bands could be wrong for some data products, which could lead to increasing errors on right and bottom

Re: [gdal-dev] PNeo pan-sharpening post 3.7.0

2023-07-15 Thread Ferdinand
Hi Evan, Thanks for the response, I'll give it a go. As you are on the ticket I mentioned, I assume the rationale behind the change was to remove the implicit assumption of overlap? Was there also a subpixel shift then when doing it the "old" way? Cheers, Ferdi On Fri, Jul 14, 2023 at 10:50 PM

Re: [gdal-dev] PNeo pan-sharpening post 3.7.0

2023-07-14 Thread Even Rouault
Ferdinand, you can for example use "gdal_edit.py -ro -a_ullr X1 Y1 X2 Y2 your.tif" to create a geotransform in a sidecar .aux.xml file.  If the pan and ms images have the same extent, you could possibly just use -a_ullr 0 0 1 -1 (untested though). This hypothesis is not totally true as there's