[gdal-dev] Blue artifact dots in shadows when using GDAL to create mosaics

Brad Hards bradh at frogmouth.net
Tue Sep 28 17:21:05 PDT 2021

On Wednesday, 29 September 2021 9:37:57 AM AEST Chastain, Raymond Lee (MU-
Student) wrote:
> Process is very simple
>   1.  Take our tiles and build a virtual raster:
> gdalbuildvrt -r lanczos -resolution HIGHEST output.vrt -input_file_list
> input_file_list.txt 2.  Convert our virtual raster to a GeoTIFF:
>   3.  gdal_translate -of GTIFF ./output.vrt ./output.tif
I manually removed the NODATA part from the vrt, and it looks better. Possibly 
the nodata value in the source is bad? Or you need to put something more 
meaningful behind the images...


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