Daniel Scheffler

icon indicating a website link https://git.gfz-potsdam.de/danschef

icon company GFZ German Research Centre for Geosciences icon location Potsdam icon location Geospatial data scientist at GFZ Potsdam. Developer of preprocessing chains and fusion algorithms for multi-sensor satellite image data.

Results 12 comments of Daniel Scheffler

Blurry output of gdal.Warp when warping via GEOLOCATION arrays and output format is VRT

Here is the output for a 1001x1001 input image (bilinear resampling) with some different blurry boundaries: ![grafik](https://github.com/OSGeo/gdal/assets/16669114/66f70027-22ac-4388-94dc-01f9d85f39ca) Input data: [testdata_large.zip](https://github.com/OSGeo/gdal/files/11461698/testdata_large.zip)

Blurry output of gdal.Warp when warping via GEOLOCATION arrays and output format is VRT

Thanks @rouault for the explanation. Setting `creationOptions=['BLOCKXSIZE=1000', 'BLOCKYSIZE=1000']` has no effect (@piyushrpt) but adding `warpOptions = ['XSCALE=1', 'YSCALE=1']` as an argument of `gdal.WarpOptions()` indeed fixes the issue. However, I guess...