MIME Type Registrations for JPEG 2000 (ISO/IEC 15444) (RFC3745)
Original Publication Date: 2004-Apr-01
Included in the Prior Art Database: 2004-Apr-06
Internet Society Requests For Comment (RFCs)
D. Singer: AUTHOR [+2]
This document serves to register and document the standard MIME types associated with the ISO/IEC 15444 standards, commonly known as JPEG 2000 (Joint Photographic Experts Group).
Network Working Group D. Singer
Request for Comments: 3745 Apple Computer
Category: Standards Track R. Clark
MIME Type Registrations for JPEG 2000 (ISO/IEC 15444)
Status of this Memo
This document specifies an Internet standards track protocol for the
Internet community, and requests discussion and suggestions for
improvements. Please refer to the current edition of the "Internet
Official Protocol Standards" (STD 1) for the standardization state
and status of this protocol. Distribution of this memo is unlimited.
Copyright (C) The Internet Society (2004). All Rights Reserved.
This document serves to register and document the standard MIME types
associated with the ISO/IEC 15444 standards, commonly known as JPEG
2000 (Joint Photographic Experts Group).
This document describes the registration of the MIME [MIME1] sub-
types image/jp2, video/mj2, image/jpx, and image/jpm. The image
encoding is defined by [ISO-JPEG2000-1].
The still image file format to which this document refers is defined
in Annex I of [ISO-JPEG2000-1]. Note that a file format is optional
in [ISO-JPEG2000-1], but mandatory for the MIME sub-type. This
document is not related to the definition of the MIME sub-type
image/jpeg, which is partly defined by [ISO-JPEG-1], and partly by
the file format specification defined in [JFIF].
JPEG 2000 is a new standard, intended to create a image coding system
for many types of still images (bi-level, gray-level, color, multi-
component) with different characteristics (natural images,
scientific, medical, remote sensing, imagery, text, rendered
graphics, etc.) allowing different imaging models (client/server,
real-time transmission, image library archival, limited buffer and
Singer, et al. Standards Track [Page 1]
RFC 3745 MIME Type Registrations for JPEG 2000 April 2004
bandwidth resources, etc.) within a unified system. This coding
system is intended to provide low bit-rate operation with rate-
distortion and subjective image quality performance superior to
existing standards, without sacrificing performance at other points
in the rate-distortion spectrum.
This standard is intended to serve still image compression needs that
are currently not served by the current JPEG standards [ISO-JPEG-1],
[ISO-JPEG-2], [ISO-JPEG-3], and [ISO-JPEG-4], and is intended to
compliment, not replace, the current JPEG standards. JPEG 2000 is a
modern wavelet-based codec that is expected to be widely used for
still images. Its use for motion sequences is expected to be similar
to JPEG: in those environments where only a single codec is
required, and JPEG 2000 is available (e.g., digital still cameras
recording short motion sequences) or where frame-by-frame coding is
desired (no inter-frame coding).
There is a standard file format for Motion JPEG 2000 sequences. This
file format permits the carriage of audio in addition to the video.
The format is derived from the ISO Base Media Fi...