JPEG 2000 georeferencing

When configuring a JPEG 2000 output file, the GEOREFTYPE option must be set to the desired georeferencing method. GDB supports the following two main georeferencing methods for the JPEG 2000 format:

GeoJP2
GMLJP2

GeoJP2

The GeoJP2(tm) format is an extension of the JPEG 2000 (JP2) format, which allows georeferencing and coordinate system information to be included in the JPEG 2000 JP2 file. GeoJP2(tm) is a trademark of Mapping Science, Inc. The GeoJP2(tm) format includes support for all georeferencing modes and coordinates systems that can be described by GeoTIFF. A GeoJP2(tm) file should still be readable by JPEG 2000 JP2 readers that are not geospatially aware (that is, almost any other application that can use JPEG 2000). Information about GeoJP2(tm) can be found at: http://www.lizardtech.com/files/geo/techinfo/JPEG_2000_FAQ.pdf

GMLJP2

The GDB library can write (generate) GMLJP2 files. GMLJP2 is an extension to JP2 based on the OpenGIS® GML in JPEG 2000 for Geographic Imagery Encoding Specification, version 1.0.0 (OGC document number 05-047r3). You can find the specification at: opengeospatial.org

GDB generates two types of GMLJP2 files:

A "minimal" GMLJP2 as defined in the specification.
A GMLJP2 file containing GML and valid against an experimental elevation application schema (created in the OGC project OWS-5).

Setting the GEOREFTYPE option

You can set the GEOREFTYPE value using the FOPTIONS parameter or the GDB Options Editor in CATALYST Professional Focus. The following table describes the supported values.

GEOREFTYPE Value	Result
GEOTIFF	GeoJP2
GMLJP2BASIC	Minimal GMLJP2
GMLJP2DEM	Experimental Elevation GML
GMLJP2	If GEOREFTYPE is set to this value, GDB will produce one of the following results: Minimal GMLJP2 (GMLJP2BASIC) if the source image has no elevation metadata Experimental Elevation GML (GMLJP2DEM) if the source image has elevation metadata (if the ELEVATION_UNITS metadata tag is present)

Examples

EASI>FOPTIONS=”GEOREFTYPE=GEOTIFF"
EASI>FOPTIONS=”GEOREFTYPE=GMLJP2BASIC”
EASI>FOPTIONS=”GEOREFTYPE=GMLJP2DEM”
EASI>FOPTIONS=”GEOREFTYPE=GMLJP2”

Leaving FOPTIONS empty will generate GeoJP2 (GEOTIFF) output.