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QGIS - Batch Pyramids and Virtual Raster OSGeo4W By mike on 19th November 2021 09:16:11 PM

Batch create Pyramids and Virtual Raster from OSGeo4W commandline

Convert all PNG in current dir to GeoTIFF
for %i in (*.png) do gdal_translate --config GDAL_CACHEMAX 1024 -co NUM_THREADS=ALL_CPUS -co COMPRESS=DEFLATE -co ZLEVEL=9 -co PREDICTOR=2 -co TILED=YES %i %~ni.tif

Create external pyramides for all TIF in current dir
for %i in (*.tif) do gdaladdo -ro -r cubic %i 2 4 8 16

Create VRT file for all TIF in current dir
gdalbuildvrt mosaic.vrt *.tif

Create external pyramide for VRT (huge and slow, not recommended on large file set)
gdaladdo -ro -r cubic mosaic.vrt 2 4 8 16

Note; Above are single line terminal commands, not directly usable in a batch file
https://docs.qgis.org/3.22/en/docs/user_manual/processing_algs/gdal/rastermiscellaneous.html
https://gdal.org/programs/gdal_merge.html

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