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I have been tasked with making GDAL capable of dealing with a new NITF type (<a href="https://calval.cr.usgs.gov/apps/sites/default/files/jacie/BarbaraEckstein.pdf" style="" id="LPlnk893522">https://calval.cr.usgs.gov/apps/sites/default/files/jacie/BarbaraEckstein.pdf</a>)
that has major buy-in from data providers. Due to the ubiquity of GDAL, making the change at this level will give the most people access.<br>
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<a target="_blank" id="LPUrlAnchor548487" href="https://calval.cr.usgs.gov/apps/sites/default/files/jacie/BarbaraEckstein.pdf" style="text-decoration: none; color:var(--themePrimary);">The Spectral NITF Implementation Profile (SNIP): A New Standard for Multispectral
and Hyperspectral Imagery Datasets</a></div>
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The NITF Standard (NITFS) consists of a file header and different “segment” types Some segments may include “tagged record extensions” (TREs), i.e., metadata headers</div>
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calval.cr.usgs.gov</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Even Rouault <even.rouault@spatialys.com><br>
<b>Sent:</b> Thursday, April 2, 2020 11:03 AM<br>
<b>To:</b> gdal-dev@lists.osgeo.org <gdal-dev@lists.osgeo.org><br>
<b>Cc:</b> Edson, Adam Robert <are131@psu.edu><br>
<b>Subject:</b> Re: [gdal-dev] Accessing DES in NITF through GDAL</font>
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Adam,</p>
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> I am working with NITF data. How are Data Extension Segments (DES) accessed</p>
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> through GDAL?</p>
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Complicated topic.</p>
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TRE stored in DES are reported in the TRE and xml:TRE metadata domains.</p>
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For generic DES extraction, you need to build GDAL with the ESRI_BUILD macro enabled, and then they should be reported as Base64 encoded content in the NITF_DES metadata domain, but I haven't tried such builds recently.</p>
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Even</p>
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-- </p>
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Spatialys - Geospatial professional services</p>
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http://www.spatialys.com</p>
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