The side effect of using a file where this warning is emitted is that
this COMRAT field which indicates the compression rate will be set to a
invalid value (or probably set to blank. I haven't checked). Pedantic
software or validation procedures might be unhappy with that. GDAL based
software will ignore that field on reading.
Le 14/08/2021 à 14:33, Chastain, Raymond Lee (MU-Student) a écrit :
Thanks Even that's fantastic,
Do you know what side-effects if any we can expect due to this?
We need to know if we should regenerate our imagery before we deliver it.
Thanks for your time,
Raymond.
------------------------------------------------------------------------
*From:* Even Rouault <even.roua...@spatialys.com>
*Sent:* Saturday, August 14, 2021 7:28 AM
*To:* Chastain, Raymond Lee (MU-Student) <rlc...@mail.missouri.edu>;
gdal-dev@lists.osgeo.org <gdal-dev@lists.osgeo.org>
*Subject:* Re: [gdal-dev] GDAL NITF COMRAT issue when combining
SDE_TRE=YES with compressio
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Raymond,
I believe this has been fixed per this commit in master done a few
weeks ago:
https://github.com/OSGeo/gdal/commit/0decd82d582015c07bcf22c52cc03bbdda952ce9
<https://nam02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2FOSGeo%2Fgdal%2Fcommit%2F0decd82d582015c07bcf22c52cc03bbdda952ce9&data=04%7C01%7C%7Cd81ccff1e3754c4773c208d95f1f01c9%7Ce3fefdbef7e9401ba51a355e01b05a89%7C0%7C0%7C637645409483708058%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C2000&sdata=W1d2E0BTJo7Ld5xHIC66uckdF9cxE1pbIwuarPGZ%2BBo%3D&reserved=0>
I've just backported it to the 3.3 branch
Even
Le 14/08/2021 à 13:22, Chastain, Raymond Lee (MU-Student) a écrit :
When we enable JPEG-2000 compression (or any IC=* creation option)
alongside "SDE_TRE=YES" we get:
"Warning 1: Unable to locate COMRAT to update in NITF header."
We require the precision increase provided by "SDE_TRE=YES" and
dropping the IC creation option
explodes the size of our final mosaics by an order of magnitude.
Using either option separately is fine,
however, combining them emits this warning.
For context we are taking GeoTIFF mosaics and converting them to the
NITF format when we encounter this.
Thanks,
Raymond.
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