[gdal-dev] OZI Raster Driver - new ozf4 file format support

jratike80 jukka.rahkonen at maanmittauslaitos.fi
Mon Sep 28 11:22:16 PDT 2020


As far as I know the ozf format has never been open but fundamentally it is
rather simple. Version 3 introduced encryption but it was also simple and
reverse engineered soon
https://www.globalmapperforum.com/uploads/attachments/3/1298.txt. Since that
the author of Ozi Explorer made ozf4 version that has stronger encryption.
Developers business model is to sell licenses.

-Jukka Rahkonen-

Ivars Grinbergs wrote
> Hi,
> Img2Ozf utility program since version 3.17 produces OZF4 format files.
> Since then, when I try to convert my calibrated map, I get an error
> message
> like "ERROR 4: `somefile.ozf4' not recognised as a supported file
> format.".
> Conversion of calibrated map ultimately results in the following command
> line call (I am using Windows 10):
> gdal_translate.exe -of GTiff --config GDAL_DATA
> "c:\path\to\gdal\gdal-data"
> -co compress=lzw -co BIGTIFF=IF_SAFER "input-file.ozf4" "output-file.tif"
> So I understand that OZF2/OZFX3 file formats are different from OZF4 and
> GDAL raster driver does not support it.
> But are there any ideas, thoughts or discussions on this new format? I
> wonder that there is little or no information, especially in the context
> of
> GDAL, about this new Ozi format (at least I cannot find one).
> Thanks in advance
> Ivars
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