[gdal-dev] gdalinfo -stats Misses invalid data value in ENVI header

[Even Rouault]

Le vendredi 19 octobre 2012 23:57:01, Peter Willis a écrit :
> Hello,
> 
> At step #6,  gdalinfo -stats reports data stats with the -999 values
> calculated into the min/max/mean/stdev.
> 
> 
> Band 2 Block=2178x1 Type=Float32, ColorInterp=Undefined
>   Description = Band 2
>   Min=-999.000 Max=12.250
>   Minimum=-999.000, Maximum=12.250, Mean=-946.817, StdDev=222.404
>   NoData Value=-999
>   Metadata:
>     STATISTICS_MINIMUM=-999
>     STATISTICS_MAXIMUM=12.25
>     STATISTICS_MEAN=-946.81678963104
>     STATISTICS_STDDEV=222.4036660914
> 

Ok, indeed that's not expected.

Well, perhaps you could first check if there is no .aux.xml file that would 
contain bad values. And if so, delete it before running again gdalinfo -stats. 

Other than that, I've no more idea without having access to the .img file 
itself.