[gdal-dev] gdal_retile: output isn't georeferenced?

[Andrew C Aitchison]

On Fri, 12 Mar 2021, mhw-at-yg wrote:

> Is it expected that `gdal_retile -of cog -ps 4096 4096 -t myoutdir
> infile.tif` creates files that are not georeferenced?
>
> Using Gdal from QGIS 3.16 on Win10.
>
> ~~~
> $ gdalinfo --version
> GDAL 3.1.4, released 2020/10/20
>
> $ gdalinfo u:.\SPOT6_321_BeaverRiver_08Sep2018_NAD83_YAlbers_01_01.tif.msk
> Driver: GTiff/GeoTIFF
> Files: u:.\SPOT6_321_BeaverRiver_08Sep2018_NAD83_YAlbers_01_01.tif.msk
> Size is 4096, 4096
> Metadata:
>  INTERNAL_MASK_FLAGS_1=2
>  INTERNAL_MASK_FLAGS_2=2
>  INTERNAL_MASK_FLAGS_3=2
> Image Structure Metadata:
>  COMPRESSION=DEFLATE
>  INTERLEAVE=BAND
> Corner Coordinates:
> Upper Left  (    0.0,    0.0)
> Lower Left  (    0.0, 4096.0)
> Upper Right ( 4096.0,    0.0)
> Lower Right ( 4096.0, 4096.0)
> Center      ( 2048.0, 2048.0)
> Band 1 Block=256x256 Type=Byte, ColorInterp=Gray
> ~~~

Is the "main" or "image" file geo-referenced ?
It may be that the .tif.msk mask files are assumed to be the same as
the matching .tif file.

-- 
Andrew C. Aitchison					Kendal, UK
 			andrew at aitchison.me.uk