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NITF Metadata

You can edit the following metadata for images with the NITF output format.

For more information on NITF metadata, see the NITF 2.1 specification at the following URL:

http://www.gwg.nga.mil/ntb/baseline/docs/2500c/2500C.pdf

Viewable NITF Metadata

In addition to the NITF metadata that you can edit, GeoExpress embeds metadata from NITF input files to preserve the source metadata. When reading a NITF file, GeoExpress stores many NITF fields as metadata, for example as tag/value pairs in MrSID imagery.

NOTE: The following discussion assumes familiarity with the NITF specification.

In general, the tag name is of the form

NITF::xxnnn::field

where xx is a two letter code representing the NITF segment (IM for image, FH for file header) and nnn is the NITF segment number. TRE fields contain the prefix "TRE_". Specifically, GeoExpress stores input fields in metadata tags as described in the following tables.

File Header Fields

GeoExpress stores file header fields in the following tags:

 

File Header Fields
NITF Field GeoExpress Tag
FHDR NITF::FH000::FHDR
FVER NITF::FH000::FVER
STYPE NITF::FH000::STYPE
OSTAID NITF::FH000::OSTAID
FDT NITF::FH000::FDT
FTITLE NITF::FH000::FTITLE
ONAME NITF::FH000::ONAME
OPHONE NITF::FH000::OPHONE
NUMI NITF::FH000::NUMI
NUMS NITF::FH000::NUMS
NUML NITF::FH000::NUML
NUMT NITF::FH000::NUMT
NUMDES NITF::FH000::NUMDES
NUMRES NITF::FH000::NUMRES

Of the above, GeoExpress allows the user to set the values for OSTAID, FDT, FTITLE, ONAME, and OPHONE when encoding NITF images.

Security-Related Fields

GeoExpress stores security-related fields from the file header (unless they are blanks) in the following tags:

 

Security-Related Fields
NITF Field GeoExpress Tag
SCLAS NITF::FH000::SCLAS
SCLSY NITF::FH000::SCLSY
SCODE NITF::FH000::SCODE
SCTLH NITF::FH000::SCTLH
SREL NITF::FH000::SREL
SDCTP NITF::FH000::SDCTP
SDCDT NITF::FH000::SDCDT
SDCXM NITF::FH000::SDCXM
SDG NITF::FH000::SDG
SDGDT NITF::FH000::SDGDT
SCLTX NITF::FH000::SCLTX
SCATP NITF::FH000::SCATP
SCAUT NITF::FH000::SCAUT
SCRSN NITF::FH000::SCRSN
SSRDT NITF::FH000::SSRDT
SCTLN NITF::FH000::SCTLN

GeoExpress allows the user to custom set all of the above.

Image Segment Fields

GeoExpress stores image segment fields in the following tags:

 

Image Segment Fields
NITF Field GeoExpress Tag
IID1 NITF::IM001::IID1
IDATIM NITF::IM001::IDATIM
TGTID NITF::IM001::TGTID
IID2 NITF::IM001::IID2
ISORCE NITF::IM001::ISORCE
ICORDS NITF::IM001::ICORDS
IGEOLO NITF::IM001::IGEOLO
NICOM NITF::IM001::NICOM
ICOM1 NITF::IM001::ICOM1
... ...
ICOM9 NITF::IM001::ICOM9

GeoExpress allows the user to custom set these image segment fields: IID1, IDATIM, TGTID, IID2, ISORCE, NICOM, ICOM1...ICOM9.

Additional Notes

In addition, GeoExpress does the following: