Sustainability of Digital Formats
 Planning for Library of Congress Collections

Format Description Categories >> Browse Alphabetical List>> Back

Identification and description

Full name	JPEG 2000 jp2 file format with profile 4 encoding
Description	JPEG 2000 core (part 1) wrapper containing encoded data that conforms to profile 4. In this preliminary description, the compiler notes that this combination may be hypothetical: in the digital cinema application for which profile 4 was developed, the critical wrapper is the MXF Generic Container (MXF_GC). Within MXF_GC, the JPEG 2000 codestream may or may not also be wrapped in JP2_FF format.
Production phase	Final-state content distribution by those who follow the Digital Cinema Initiative DCP_1_0 specification.
Relationship to other formats
Subtype of	JP2_FF, JPEG 2000 Part 1 (Core) jp2 File Format
Contains	J2K_C_Profile_4, JPEG 2000 Part 1, Core Coding, Profile 4

Local use

LC experience or existing holdings	See JP2_FF
LC preference	See JP2_FF

Sustainability factors

Disclosure	See JP2_FF
Documentation	See JP2_FF and J2K_C
Adoption	See JP2_FF and J2K_C
Licensing and patents	See JP2_FF and J2K_C
Transparency	See J2K_C
Self-documentation	See JP2_FF
External dependencies	See JP2_FF and J2K_C
Technical protection considerations	See JP2_FF

Quality and functionality factors

Still Image
Normal rendering	Good support
Clarity (high image resolution)	See J2K_C
Color maintenance	See JP2_FF
Support for vector graphics, including graphic effects and typography	See JP2_FF
Support for multispectral bands	See JP2_FF
Functionality beyond normal rendering	See JP2_FF and J2K_C

File type signifiers

Tag	Value	Note
Filename extension	See note.	See JP2_FF
Internet Media Type	See note.	See JP2_FF
Magic numbers	See note.	See JP2_FF

Notes

General
History

Format specifications

• See Disclosure under Sustainability factors.

Useful references