GDAL-RASTER-OVERVIEW-REFRESH(1) GDAL GDAL-RASTER-OVERVIEW-REFRESH(1) (NAME) gdal-raster-overview-refresh - 3.12 . (SYNOPSIS) Usage: gdal raster overview refresh [OPTIONS] Refresh overviews. Positional arguments: -i, --dataset, --input Dataset (to be updated in-place, unless --external) [required] Common Options: -h, --help Display help message and exit --json-usage Display usage as JSON document and exit --config = Configuration option [may be repeated] -q, --quiet Quiet mode (no progress bar or warning message) [not available in pipelines] Options: --external Refresh external overviews -r, --resampling Resampling method. RESAMPLING=nearest|average|cubic|cubicspline|lanczos|bilinear|gauss|average_magphase|rms|mode --levels Levels / decimation factors [may be repeated] --bbox Bounding box to refresh Mutually exclusive with --like, --use-source-timestamp --like Use extent of dataset(s) [may be repeated] Mutually exclusive with --bbox, --use-source-timestamp --use-source-timestamp Use timestamp of VRT or GTI sources as refresh criterion Mutually exclusive with --bbox, --like Advanced Options: --oo, --open-option = Open options [may be repeated] (DESCRIPTION) gdal raster overview refresh (dataset) . (level) / (extent) . (PROGRAM-SPECIFIC OPTIONS) --bbox ,,,ymax> CRS . 'x' CRS (easting) CRS . 'y' CRS (northing) CRS . --dataset ( --external ). . --external .ovr. --levels . . . --like [,]... ( ) . . . . . -r, --resampling {nearest|average|cubic|cubicspline|lanczos|bilinear|gauss|average_magphase|rms|mode} (resampling). nearest . TIFF -r ( RESAMPLING ) . : nearest ( ) . average NODATA . . bilinear . cubic . cubicspline B-Spline . lanczos sinc Lanczos . gauss . ... x . average_magphase / (mag/phase) . rms / NODATA . mode . --use-source-timestamp VRT -- GDAL Virtual Format GTI -- GDAL Raster Tile Index . (timestamp) VRT VRT . . . (STANDARD OPTIONS) --oo, --open-option = ( ). . (EXIT STATUS) 0 ( ). (EXAMPLES) : VRT vrt.ovr. : gdal raster mosaic tile1.tif tile2.tif my.vrt # create VRT gdal raster overview add --external -r cubic my.vrt # initial overview generation touch tile1.tif # simulate update of one of the source tiles gdal raster overview refresh --external -r cubic \ --use-source-timestamp my.vrt # refresh overviews : () TIFF gdal raster mosaic tile1.tif tile2.tif mosaic.tif # create mosaic gdal raster overview add -r cubic mosaic.tif # initial overview generation gdalwarp tile1_modif.tif mosaic.tif # update mosaic gdal raster overview refresh --like=tile1.tif my.tif # refresh overviews (AUTHORS) Even Rouault (COPYRIGHT) 1998-2026 August 18, 2026 GDAL-RASTER-OVERVIEW-REFRESH(1)