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NITF* Input Metadata

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

When reading a NITF file, GeoExpress stores many NITF fields as metadata, for example as tag/value pairs in MrSID imagery (see LizardTech Image Metadata.

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.

*Support for encoding NITF images is available for GeoExpress. Contact your LizardTech representative to purchase the NITF Extension for GeoExpress.

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: