Denis,
The maximum of nearest downsampling should be <= maximum of full resolution.
Potential explanations:
- your source file has overviews that contain completely different
values than the full resolution image.
- or perhaps your input_raster_to_resize_with_max_val_92.tiff file has a
.aux.xml with outdated stats (gdalinfo -stats doesn't regenerate stats
if already found)
Even
Le 20/05/2021 à 21:42, Denis Rykov a écrit :
|$ gdalinfo -stats -json input_raster_to_resize_with_max_val_92.tiff |
jq '.bands[0].metadata[""].STATISTICS_MAXIMUM' "92" $ gdal_translate
-outsize 1% 1% input_raster_to_resize_with_max_val_92.tiff output.tif
Input file size is 6845, 10302
0...10...20...30...40...50...60...70...80...90...100 - done. $
gdalinfo -stats -json output.tif | jq
'.bands[0].metadata[""].STATISTICS_MAXIMUM' "3149.9255371094" |I expected to get the same or at least close value as in the original
raster. What might be the reason for that behavior?||
|
|
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