Opened 12 years ago

Closed 12 years ago

Last modified 12 years ago

#3889 closed defect (fixed)

gdal_translate -scale doesn't update metadata

Reported by: giohappy Owned by: warmerdam
Priority: normal Milestone: 1.8.0
Component: GDAL_Raster Version: svn-trunk
Severity: normal Keywords: metadata scale
Cc:

Description (last modified by giohappy)

I've noticed that scaling the values of a raster through gdal_translate -scale option doesn't update the grid metadata values.

I've run: 

gdal_translate -scale 0.01 2.09 -a_nodata -99999

Tha raster has been correctly reclassified to 0-255 values but gdalconfig still shows the original values range: 

Min=0.012 Max=2.093
Minimum=0.012, Maximum=2.093, Mean=0.794, StdDev=0.090
NoData Value=0
Metadata:
  STATISTICS_MINIMUM=0.011922454461455
  STATISTICS_MAXIMUM=2.0925054550171
  STATISTICS_MEAN=0.79358366752425
  STATISTICS_STDDEV=0.090106991043695

Change History (4)

comment:1 by giohappy, 12 years ago

Description: modified (diff)

comment:2 by Even Rouault, 12 years ago

Resolution: → fixed
Status: new → closed

Fixed in trunk in r21385

comment:3 by Even Rouault, 12 years ago

r21386: add a -stats option to force (re)computation of statistics

comment:4 by giohappy, 12 years ago

Impressive quick fix! Thanks Even.

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