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)