GMLJP2

File Format
Name	GMLJP2
Ontology	Electronic File Formats Geospatial JPEG 2000 GMLJP2
Extension(s)	.jpf, .jpx
MIME Type(s)	image/jpx
LoCFDD	fdd000303

GMLJP2 is a metadata standard that enables one to embed geospatial metadata in georeferenced JPX (JPEG 2000 Part 2) images.

Format

GMLJP2 data is XML-based, and is stored in "xml " boxes nested inside "asoc" boxes.

Because "asoc" boxes are only defined in the JPX specification, and not in the JP2 specification, GMLJP2 files must be labeled (branded) as JPX format instead of JP2 format. However, some invalid GMLJP2 files labeled as JP2 do exist.

Version 1.0 was approved in 2006. Version 2.0 was approved by OGC on June 30, 2014.

See also

• GeoJP2 is an alternative standard for embedding geospatial metadata in JPEG 2000 images which is based on the GeoTIFF format.

Specifications

• GML in JPEG 2000 for Geographic Imagery Encoding, now known as Version 1.0
• OGC® GML in JPEG 2000 (GMLJP2) Encoding Standard Part 1: Core, known as Version 2.0