|JP2, Profile 0||fdd000195|
|JP2, Profile 1||fdd000197|
|JP2, Profile 3||fdd000212|
|JP2, Profile 4||fdd000214|
|JP2, BIIF Profile||fdd000169|
|JP2, NDNP Profile||fdd000193|
JP2 files begin with bytes
00 00 00 0c 6a 50 20 20 0d 0a 87 0a ?? ?? ?? ?? 66 74 79 70 6a 70 32 20.
Note that some Adobe applications (most notably Adobe Photoshop) produce JPX (JPEG 2000 Part 2) images that erroneously use the above byte sequence, which makes them (superficially) indistinguishable from JP2 images.
- ISO/IEC 15444-1 Annex I: JP2 file format syntax
- ISO/IEC 15444-1
- ITU-T Rec. T.800 (not free to download)
- JPEG 2000 Committee Drafts → fcd15444-1.pdf
- Updated ICC profile support, bit depth and resolution clarifications - 2013 amendment to the filespec that extends support of ICC profiles and clarifies use of resolution fields in JP2
- Updated ICC profile support, bit depth and resolution clarifications - August 2011 draft of above amendment (freely available)
See also JPEG 2000.
- jpylyzer: JP2 validator and property extractor
- Note also that the jpylyzer manual also includes a detailed breakdown of the JP2 format structure.
- GeoJP2 is an extension of the JP2 format which allows one to include geospatial metadata in georeferenced JP2 images.