[gdal-dev] Getting CGM from NITF file

[Visser, John B.]

I apologize if there's an online resource that already answers my
question.

I have a NITF file with several annotations saved into it.  I've
discovered how to get at them by accessing the "CGM" metadata, but
things don't look quite right.  What are all the escaped zeroes in
there?  Is there some way to convert them back to their native byte
representation or access them directly that way?

Best,
jv