Re: [Openev-discuss] Converting Quickbird GeoTiff files to NITF including Rational Polynomial Coefficients (RPC).

[Frank W. <war...@po...>]

Bailey, Richard T (US SSA) wrote:
> I have some Quickbird GeoTiff files that need to be converted to NITF
> format.  I ran the gdal_translate utility on them and the images are
> viewable, but we are missing some information in the NITF headers or
> tags.  I don't know much about what we need, but I was told that "If it
> populates RPC00B and ICHIPB in the NITF file then that's all you need."
> This has to do with the rational polynomial coefficients that are stored
> in separate files.  The separate files are *.imd, *.rpb, and *.til
> files.  Quickbird files are ones produced by Digital Globe
> (www.digitalglobe.com) from their commercial satellite.
> 
> What do I need to do to get these files converted with inclusion of the
> RPCs into the NITF files?

Richard,

GDAL does not currently support writing RPC00B or ICHIPB segments in it's
(very simple) NITF writer, nor does it support reading quickbird RPC model
files.  I would be happy to implement this for a reasonable price if you could
provide sample input data, and some validation of the output product.

I am not sure if there are other requirements, but I would basically
implement this to produce an NITF product similar to the space imaging
NITF files with RPC00B and ICHIPB information.  Let me know if you would
like me to prepare a proposal and any additional constraints you might have.

Best regards,
-- 
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I set the clouds in motion - turn up   | Frank Warmerdam, war...@po...
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and watch the world go round - Rush    | Geospatial Programmer for Rent