[gdal-dev] gdalinfo -mm also report n (number of grid cells that are not nodata)

[Markus Metz]

On Sat, Jun 16, 2018 at 6:38 PM, jratike80 <
jukka.rahkonen at maanmittauslaitos.fi> wrote:
>
> Markus Metz-3 wrote
> > My workaround is to use GRASS r.external to get correct raster band
> > statistics.
>
> Hi,
>
> Wouldn't it be good to have an option in GDAL to force it to re-compute
> statistics? After all, statistics is just metadata and they can be all
wrong
> if you have touched the image with a third-party software.

That would be helpful.

Regarding gdalinfo,
 - gdalinfo would report what it does right now (includes any STATISTICS_*
metadata items)
 - gdalinfo -stats would compute raster band stats using all grid cells,
ignoring any STATISTICS_* metadata items
 - gdalinfo -approx-stats would compute raster band stats using a sample of
all grid cells, ignoring any STATISTICS_* metadata items

Markus
>
> -Jukka Rahkonen-
>
>
>
> --
> Sent from: http://osgeo-org.1560.x6.nabble.com/GDAL-Dev-f3742093.html
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