Network Working Group D. Singer
Request for Comments: 3745 Apple Computer
Category: Standards Track R. Clark
Elysium Ltd
D. Lee
Yahoo Inc.
April 2004
Network Working Group D. Singer
Request for Comments: 3745 Apple Computer
Category: Standards Track R. Clark
Elysium Ltd
D. Lee
Yahoo Inc.
April 2004
MIME Type Registrations for JPEG 2000 (ISO/IEC 15444)
JPEG 2000的MIME类型注册（ISO/IEC 15444）
Status of this Memo
本备忘录的状况
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.
本文件规定了互联网社区的互联网标准跟踪协议，并要求进行讨论和提出改进建议。有关本协议的标准化状态和状态，请参考当前版本的“互联网官方协议标准”（STD 1）。本备忘录的分发不受限制。
Copyright Notice
版权公告
Copyright (C) The Internet Society (2004). All Rights Reserved.
版权所有（C）互联网协会（2004年）。版权所有。
Abstract
摘要
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).
本文档用于注册和记录与ISO/IEC 15444标准相关的标准MIME类型，通常称为JPEG 2000（联合摄影专家组）。
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].
本文档描述了MIME[MIME1]子类型image/jp2、video/mj2、image/jpx和image/jpm的注册。图像编码由[ISO-JPEG2000-1]定义。
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].
本文件引用的静态图像文件格式在[ISO-JPEG2000-1]的附录I中定义。请注意，文件格式在[ISO-JPEG2000-1]中是可选的，但对于MIME子类型是必需的。本文件与MIME子类型image/jpeg的定义无关，该定义部分由[ISO-jpeg-1]定义，部分由[JFIF]中定义的文件格式规范定义。
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
JPEG 2000是一个新标准，旨在为具有不同特征（自然图像、科学、医学、遥感、图像、文本、渲染图形等）的多种类型的静止图像（二级、灰度、颜色、多分量）创建图像编码系统，以允许不同的成像模型（客户端/服务器、实时传输、图像库存档、有限缓冲区和
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.
统一系统内的带宽资源等）。该编码系统旨在提供低比特率操作，其率失真和主观图像质量性能优于现有标准，而不牺牲率失真频谱中其他点的性能。
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).
本标准旨在满足当前JPEG标准[ISO-JPEG-1]、[ISO-JPEG-2]、[ISO-JPEG-3]和[ISO-JPEG-4]未满足的静态图像压缩需求，并旨在补充而不是取代当前JPEG标准。JPEG2000是一种基于小波的现代编解码器，预计将广泛用于静止图像。预计其对运动序列的使用类似于JPEG：在仅需要单个编解码器且JPEG 2000可用（例如，记录短运动序列的数字静止照相机）或需要逐帧编码（无帧间编码）的环境中。
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 File Format as defined in [ISO-JPEG2000-12]. The visual coder in a Motion JPEG 2000 file is JPEG 2000. The Motion JPEG 2000 standard is specified in [ISO-JPEG2000-3]. The ISO Base Media File Format is jointly maintained by the ISO/IEC JPEG and MPEG committees. The MP4 format is also derived from the ISO Base Media File Format.
运动JPEG 2000序列有一种标准文件格式。此文件格式允许在视频之外传输音频。该格式源自[ISO-JPEG2000-12]中定义的ISO基本媒体文件格式。运动JPEG 2000文件中的视觉编码器为JPEG 2000。[ISO-JPEG2000-3]中规定了运动JPEG2000标准。ISO基本媒体文件格式由ISO/IEC JPEG和MPEG委员会共同维护。MP4格式也源自ISO基本媒体文件格式。
Therefore, to identify this restricted usage, a new mime type is desirable.
因此，为了识别这种受限用法，需要一种新的mime类型。
This file type is intended always to contain a video sequence, though simple audio is permitted in addition to the video. Therefore it falls correctly under the "video" branch of mime types.
此文件类型旨在始终包含视频序列，但除了视频之外，还允许使用简单音频。因此，它属于mime类型的“视频”分支。
Also within WG1 of ISO there is an effort underway to define a standard file format for Compound Images. This file format optionally supports other coding systems, in addition to JPEG 2000, as needed.
此外，在ISO的WG1中，正在努力为复合图像定义标准文件格式。此文件格式可根据需要支持JPEG 2000之外的其他编码系统。
JPEG 2000 is defined in detail in [ISO-JPEG2000-1]. The documentation can be obtained from any national standards body or from ISO at http://www.iso.ch.
JPEG 2000在[ISO-JPEG2000-1]中有详细定义。文件可从任何国家标准机构或ISO获取，网址为http://www.iso.ch.
Information as to its latest status, and downloads of the initial documents and some supporting documentation are available through the JPEG committee's official Web site at http://www.jpeg.org.
有关其最新状态的信息，以及初始文件和一些支持文件的下载可通过JPEG委员会的官方网站获得，网址为http://www.jpeg.org.
While a brief scope and feature description is provided in this section as background information, the reader is directed to the original JPEG 2000 specification [ISO-JPEG2000-1] to obtain complete feature and technical details.
虽然本节提供了简要的范围和功能描述作为背景信息，但读者可参考原始JPEG 2000规范[ISO-JPEG2000-1]，以获得完整的功能和技术细节。
JPEG 2000 is used to compress image data that typically comes from digital cameras, scanners, frame grabbers, complex image capture devices such as medical or satellite systems, and paint- and photo-retouching programs. Unlike previous JPEG standards, it includes information necessary to allow its use as a complete coding architecture. [ISO-JPEG2000-1] defines a set of lossless (bit-preserving) and lossy compression methods for coding continuous-tone, bi-level, gray-scale, or colour digital still images. It therefore:
JPEG 2000用于压缩图像数据，这些数据通常来自数码相机、扫描仪、帧捕获器、复杂的图像捕获设备（如医疗或卫星系统）以及油漆和照片修饰程序。与以前的JPEG标准不同，它包含允许将其用作完整编码体系结构所需的信息。[ISO-JPEG2000-1]定义了一套无损（保位）和有损压缩方法，用于对连续色调、双电平、灰度或彩色数字静止图像进行编码。因此，它：
- specifies decoding processes for converting compressed image data to reconstructed image data;
- 指定用于将压缩图像数据转换为重构图像数据的解码处理；
- specifies a codestream syntax containing information for interpreting the compressed image data;
- 指定包含用于解释压缩图像数据的信息的码流语法；
- specifies a file format;
- 指定文件格式；
- provides guidance on encoding processes for converting source image data to compressed image data;
- 提供将源图像数据转换为压缩图像数据的编码过程指南；
- provides guidance on how to implement these processes in practice.
- 就如何在实践中实施这些过程提供指导。
[ISO-JPEG2000-1] is one of a series of standards which will cover the full range of facilities the new architecture is intended to offer. Approval has been given for JPEG to develop the following documents in addition to [ISO-JPEG2000-1].
[ISO-JPEG2000-1]是一系列标准之一，将涵盖新体系结构打算提供的全部设施。除[ISO-JPEG2000-1]外，JPEG还获准编制以下文件。
- Part 2 - Coding extensions [ISO-JPEG2000-2]. This includes a more comprehensive file format and other extensions to the definitions in [ISO-JPEG2000-1]. The mime sub-type image/jpx is recommended to describe files based on this Part, and a separate RFC is planned to describe this usage and its associated file extensions of jpf and jpx.
- 第2部分-编码扩展[ISO-JPEG2000-2]。这包括更全面的文件格式和[ISO-JPEG2000-1]中定义的其他扩展名。建议使用mime子类型image/jpx来描述基于此部分的文件，并计划使用单独的RFC来描述此用法及其相关的jpf和jpx文件扩展名。
- Part 3 - Motion JPEG 2000 [ISO-JPEG2000-3]. This provides definitions of how the standard may be extended for use in recording time series of JPEG 2000 images with associated metadata such as audio objects. This document registers the mime sub-type video/mj2 for motion JPEG 2000, with associated file extensions mj2 and mjp2.
- 第3部分-运动JPEG 2000[ISO-JPEG2000-3]。这提供了如何扩展标准的定义，以用于记录JPEG 2000图像的时间序列以及相关元数据（如音频对象）。本文档注册了motion JPEG 2000的mime子类型video/mj2，以及相关的文件扩展名mj2和mjp2。
- Part 4 - Conformance [ISO-JPEG2000-4]. This deals with testing of equipment and systems claimed to conform to the JPEG 2000 standards.
- 第4部分-一致性[ISO-JPEG2000-4]。这涉及声称符合JPEG 2000标准的设备和系统的测试。
- Part 5 - Reference software [ISO-JPEG2000-5]. This will provide developers with a source of publicly available reference software. Its role is envisaged as similar in concept to that played by the Independent JPEG Group (IJG) in publicizing the current [ISO-JPEG-1] standard.
- 第5部分-参考软件[ISO-JPEG2000-5]。这将为开发者提供公开可用的参考软件的来源。其作用在概念上与独立JPEG集团（IJG）在宣传当前[ISO-JPEG-1]标准方面所起的作用类似。
- Part 6 - Compound Image File Format [ISO-JPEG2000-6]. This describes a file format used to store compound documents using JPEG 2000 compression. These may contain scanned images, synthetic images or both. This work is based on the multi-layer Mixed Raster Content (MRC) imaging model, defined in ITU-T T.44 | ISO 16485. The mime sub-type image/jpm is recommended to describe files based on this Part.
- 第6部分-复合图像文件格式[ISO-JPEG2000-6]。这描述了一种用于存储使用JPEG 2000压缩的复合文档的文件格式。这些可能包含扫描图像、合成图像或两者。这项工作基于ITU-T T.44 | ISO 16485中定义的多层混合光栅内容（MRC）成像模型。建议使用mime子类型image/jpm来描述基于此部分的文件。
- Part 7 - Has been withdrawn
- 第7部分-已撤回
- Part 8 - JPSEC (Security aspects) [ISO-JPEG2000-8]. This provides standardised tools and solutions in terms of specifications in order to ensure the security of transaction, protection of contents (IPR), and protection of technologies (IP), and to allow applications to generate, consume, and exchange JPEG 2000 Secured bitstreams.
- 第8部分-JPSEC（安全方面）[ISO-JPEG2000-8]。这提供了规范方面的标准化工具和解决方案，以确保交易安全、内容保护（IPR）和技术保护（IP），并允许应用程序生成、使用和交换JPEG 2000安全比特流。
- Part 9 - JPIP (Interactive protocols) [ISO-JPEG2000-9]. This client-server protocol has been designed to exploit JPEG 2000's flexibility with respect to random access, codestream reordering and incremental decoding in a networked environment.
- 第9部分-JPIP（交互协议）[ISO-JPEG2000-9]。该客户机-服务器协议旨在利用JPEG 2000在网络环境中的随机访问、码流重新排序和增量解码方面的灵活性。
- Part 10 - JP3D (Volumetric imaging) [ISO-JPEG2000-10]. This will provide extensions of JPEG 2000 for logically rectangular 3- dimensional data sets with no time component.
- 第10部分-JP3D（体积成像）[ISO-JPEG2000-10]。这将提供JPEG2000的扩展，用于无时间成分的逻辑矩形三维数据集。
- Part 11 - JPWL (Wireless applications) [ISO-JPEG2000-11]. This extends the elements in [ISO-JPEG2000-1] with mechanisms for error protection and correction.
- 第11部分-JPWL（无线应用）[ISO-JPEG2000-11]。这扩展了[ISO-JPEG2000-1]中的元素，并提供了错误保护和纠正机制。
- Part 12 - ISO Base Media File Format [ISO-JPEG2000-12]. This is the part of the file format used by JPEG 2000 which is common with that used within MPEG-4 [ISO-MPEG4].
- 第12部分-ISO基本媒体文件格式[ISO-JPEG2000-12]。这是JPEG 2000使用的文件格式的一部分，与MPEG-4[ISO-MPEG4]中使用的文件格式相同。
Some of the features of JPEG 2000 include:
JPEG 2000的一些功能包括：
- JPEG 2000 is capable of describing bi-level, grayscale, palette-color, and full-color image data in several color spaces.
- JPEG 2000能够在多个颜色空间中描述双层、灰度、调色板颜色和全色图像数据。
- JPEG 2000 includes a number of compression schemes that allow developers to choose the best space or time tradeoff for their applications.
- JPEG2000包括许多压缩方案，允许开发人员为其应用程序选择最佳的空间或时间权衡。
- JPEG 2000 is designed to be extensible and to evolve gracefully as new needs arise.
- JPEG 2000设计为可扩展，并随着新需求的出现而优雅地发展。
- JPEG 2000 allows the inclusion of an unlimited amount of private or special-purpose information within the metadata of its file format.
- JPEG 2000允许在其文件格式的元数据中包含无限量的私有或专用信息。
- These are features that JPEG 2000 shares with the definition of TIFF [RFC-TIFF]. In addition, JPEG 2000 offers:
- 这些是JPEG 2000与TIFF[RFC-TIFF]的定义共享的功能。此外，JPEG 2000还提供：
- state of the art lossless and lossy compression, based on wavelet technology, within a single codestream
- 基于小波技术的单码流无损和有损压缩技术
- low bit-rate compression performance effective down to below 0.25 bits per pixel for high resolution gray-scale images
- 低比特率压缩性能，对于高分辨率灰度图像，每像素可有效压缩到0.25比特以下
- large image handling (greater than 64k x 64k pixels) without tiling
- 无平铺的大图像处理（大于64k x 64k像素）
- single decompression architecture. The current JPEG standard [ISO-JPEG-1] has 44 modes, many of which are application specific and not used by the majority of JPEG decoders.
- 单一解压架构。当前的JPEG标准[ISO-JPEG-1]有44种模式，其中许多模式是特定于应用程序的，大多数JPEG解码器不使用这些模式。
- features to improve transmission in noisy environments, for example mobile radio / telephony
- 改善噪音环境下传输的功能，例如移动无线电/电话
- capability to handle both natural and computer generated imagery
- 处理自然图像和计算机生成图像的能力
JPEG 2000 utilizes a structure that can store image data, and metadata corresponding to this image data. The fields defined in the JPEG 2000 standards are of a descriptive nature and provide information that may be useful to facilitate viewing, rendering and cataloging of images by a recipient. As such, the fields currently defined in the JPEG 2000 standards do not in themselves create additional security risks, since the fields are not used to induce
JPEG 2000利用一种可以存储图像数据的结构，以及与该图像数据对应的元数据。JPEG 2000标准中定义的字段具有描述性，并提供可能有助于收件人查看、呈现和编目图像的信息。因此，JPEG 2000标准中当前定义的字段本身不会产生额外的安全风险，因为这些字段不用于诱导
any particular behavior by the recipient application. It should be noted that selected metadata fields may encompass information partly intended to protect the image against unauthorized use or distribution. In this case the intention is that alteration or removal of the data in the field would be treated as an offense under national agreements based World Intellectual Property Organization (WIPO) treaties.
收件人应用程序的任何特定行为。应注意，选定的元数据字段可能包含部分用于保护图像免受未经授权的使用或分发的信息。在这种情况下，意图是根据以国家协议为基础的世界知识产权组织（WIPO）条约，更改或删除该领域的数据将被视为犯罪。
JPEG 2000 has an extensible structure, so that it is theoretically possible that metadata fields could be defined in the future which could be used to induce particular actions on the part of the recipient, thus presenting additional security risks, but this type of capability is currently not supported in the referenced JPEG 2000 specification.
JPEG 2000具有可扩展的结构，因此理论上可以在将来定义元数据字段，这些元数据字段可用于引导接收者的特定操作，从而带来额外的安全风险，但参考的JPEG 2000规范目前不支持这种类型的功能。
Encryption, signing, or authentication of these file formats can use mechanisms defined in [ISO-JPEG2000-8].
这些文件格式的加密、签名或身份验证可以使用[ISO-JPEG2000-8]中定义的机制。
The image/jp2 content-type refers to all of the profiles and extensions that build on JPEG 2000 [ISO-JPEG2000-1] encoded image data. The file format is also defined in [ISO-JPEG2000-1], Annex I. The recommended file suffix is "jp2"
image/jp2内容类型是指基于JPEG 2000[ISO-JPEG2000-1]编码图像数据构建的所有配置文件和扩展。[ISO-JPEG2000-1]附录I中也定义了文件格式。建议的文件后缀为“jp2”
To: ietf-types@iana.org
Subject: Registration of Standard MIME media type image/jp2
To: ietf-types@iana.org
Subject: Registration of Standard MIME media type image/jp2
MIME media type name: image MIME subtype name: jp2 Required parameters: none Optional parameters: none It is up to the implementation to determine the application (if necessary) and render the image to the user. Encoding considerations: files are binary and should be transmitted in a suitable encoding without CR/LF conversion, 7-bit stripping etc.; base64 is a suitable encoding; Security considerations: see above Interoperability considerations: The ability of implementations to handle all the defined applications (or profiles within applications) of JPEG 2000 may not be ubiquitous. As
MIME媒体类型名称：图像MIME子类型名称：jp2必需参数：无可选参数：无由实现确定应用程序（如有必要）并将图像呈现给用户。编码注意事项：文件为二进制文件，应以适当的编码传输，无需CR/LF转换、7位剥离等。；base64是合适的编码；安全注意事项：请参见上述互操作性注意事项：实现处理JPEG 2000中所有已定义应用程序（或应用程序中的配置文件）的能力可能并不普遍。像
a result, implementations may decode
and attempt to display the encoded
JPEG 2000 image data only to
determine that the image cannot be
rendered either partially or in full.
Published specification: ISO/IEC 15444-1 defines the JPEG 2000
codec and the jp2 file format
Applications which use this media type: Imaging, fax, messaging and
multi-media
Additional information:
Magic number(s): 12 byte string: X'0000 000C 6A50 2020
0D0A 870A' (for all JPEG-2000 family
files)
File extension(s): jp2 and jpg2 are both declared at
http://www.nist.gov/nics/; jp2 is
preferred
Macintosh File Type Code(s): 'jp2 '
Person & email address to contact for further information:
JPEG Webmaster - mimesupport@jpeg.org
JPEG Convenor - convenor@jpeg.org
JPEG2000 Editor - J2KEditor@jpeg.org
Intended usage: COMMON
Change controller: JPEG Webmaster
a result, implementations may decode
and attempt to display the encoded
JPEG 2000 image data only to
determine that the image cannot be
rendered either partially or in full.
Published specification: ISO/IEC 15444-1 defines the JPEG 2000
codec and the jp2 file format
Applications which use this media type: Imaging, fax, messaging and
multi-media
Additional information:
Magic number(s): 12 byte string: X'0000 000C 6A50 2020
0D0A 870A' (for all JPEG-2000 family
files)
File extension(s): jp2 and jpg2 are both declared at
http://www.nist.gov/nics/; jp2 is
preferred
Macintosh File Type Code(s): 'jp2 '
Person & email address to contact for further information:
JPEG Webmaster - mimesupport@jpeg.org
JPEG Convenor - convenor@jpeg.org
JPEG2000 Editor - J2KEditor@jpeg.org
Intended usage: COMMON
Change controller: JPEG Webmaster
The image/jpx content-type refers to all of the profiles and extensions that build on JPEG 2000 [ISO-JPEG2000-2] encoded image data. The file format is also defined in [ISO-JPEG2000-2], Annex M. The recommended file suffix is "jpf"
image/jpx内容类型指的是基于JPEG 2000[ISO-JPEG2000-2]编码图像数据构建的所有配置文件和扩展。[ISO-JPEG2000-2]附录M中也定义了文件格式。建议的文件后缀为“jpf”
To: ietf-types@iana.org
Subject: Registration of Standard MIME media type image/jpx
To: ietf-types@iana.org
Subject: Registration of Standard MIME media type image/jpx
MIME media type name: image MIME subtype name: jpx Required parameters: none Optional parameters: none It is up to the implementation to determine the application (if necessary) and render the image to the user. Encoding considerations: files are binary and should be transmitted in a suitable encoding without CR/LF conversion, 7-bit stripping etc.; base64 is a suitable encoding; Security considerations: see above
MIME媒体类型名称：图像MIME子类型名称：jpx必需参数：无可选参数：无由实现确定应用程序（如有必要）并将图像呈现给用户。编码注意事项：文件为二进制文件，应以适当的编码传输，无需CR/LF转换、7位剥离等。；base64是合适的编码；安全注意事项：见上文
Interoperability considerations: The ability of implementations to handle all the defined applications (or profiles within applications) of JPEG 2000 may not be ubiquitous. As a result, implementations may decode and attempt to display the encoded JPEG 2000 image data only to determine that the image cannot be rendered either partially or in full. Published specification: ISO/IEC 15444-2, JPEG 2000 Extensions Applications which use this media type: Imaging, fax, messaging and multi-media Additional information: Magic number(s): 12 byte string: X'0000 000C 6A50 2020 0D0A 870A' (for all JPEG-2000 family files) File extension(s): jpf is declared at http://www.nist.gov/nics/. jpx is also an acceptable file extension, although it is not recommended for files on a desktop computer that are not directly associated with a MIME media type Macintosh File Type Code(s): 'jpx ' Person & email address to contact for further information: JPEG Webmaster - mimesupport@jpeg.org JPEG Convenor - convenor@jpeg.org JPEG 2000 Editor - J2KEditor@jpeg.org Intended usage: COMMON Change controller: JPEG Webmaster
互操作性注意事项：实现处理JPEG 2000的所有已定义应用程序（或应用程序中的配置文件）的能力可能并不普遍。结果，实现可以解码并尝试仅显示编码的JPEG 2000图像数据以确定图像不能部分或全部呈现。已发布规范：ISO/IEC 15444-2，使用此媒体类型的JPEG 2000扩展应用程序：图像、传真、消息和多媒体附加信息：幻数：12字节字符串：X'0000 000C 6A50 2020 0D0A 870A'（适用于所有JPEG-2000系列文件）文件扩展名：jpf声明为http://www.nist.gov/nics/. jpx也是一个可接受的文件扩展名，但不建议桌面计算机上与MIME媒体类型Macintosh文件类型代码没有直接关联的文件使用jpx：“jpx”联系人和电子邮件地址以获取更多信息：JPEG网站管理员-mimesupport@jpeg.orgJPEG召集人-convenor@jpeg.orgJPEG 2000编辑器-J2KEditor@jpeg.org预期用途：通用更改控制器：JPEG网站管理员
MIME media type name: video MIME subtype name: mj2
MIME媒体类型名称：视频MIME子类型名称：mj2
Required parameters: none Optional parameters: none Encoding considerations: files are binary and should be transmitted in a suitable encoding without CR/LF conversion, 7-bit stripping etc.; base64 is a suitable encoding; Security considerations: see above Interoperability considerations: A number of interoperating implementations exist within the MPEG-4 community with the formats derived from the ISO Base Media File
所需参数：无可选参数：无编码注意事项：文件为二进制文件，应以适当的编码传输，无CR/LF转换、7位剥离等。；base64是合适的编码；安全注意事项：请参阅上述互操作性注意事项：MPEG-4社区中存在许多互操作实现，其格式源自ISO基本媒体文件
Format; and that community has reference software for reading and writing the file format. Reference software for MJP2 is also available. Published specification: ISO/IEC 15444-3, Motion JPEG 2000 Applications: Multimedia Additional information:
总体安排该社区有用于读取和写入文件格式的参考软件。还提供了MJP2的参考软件。发布规范：ISO/IEC 15444-3，Motion JPEG 2000应用：多媒体附加信息：
Magic number(s): 12 byte string: X'0000 000C 6A50 2020
0D0A 870A' (for all JPEG-2000 family
files)
File extension(s): mj2 and mjp2 are both declared at
http://www.nist.gov/nics/; mj2 is
preferred
Macintosh File Type Code(s): mjp2 is registered with Apple
Magic number(s): 12 byte string: X'0000 000C 6A50 2020
0D0A 870A' (for all JPEG-2000 family
files)
File extension(s): mj2 and mjp2 are both declared at
http://www.nist.gov/nics/; mj2 is
preferred
Macintosh File Type Code(s): mjp2 is registered with Apple
Person to contact for info: David Singer, singer@apple.com
联系人：David Singer，singer@apple.com
Intended usage: Common
预期用途：普通
Author/Change controller: David Singer, MJP2 file format editor
作者/更改控制器：David Singer，MJP2文件格式编辑器
The image/jpm content-type refers to all of the profiles and extensions that build on JPEG 2000 [ISO-JPEG2000-1] encoded image data. The file format is also defined in [ISO-JPEG2000-6]. The recommended file suffix is "jpm"
图像/jpm内容类型是指基于JPEG 2000[ISO-JPEG2000-1]编码图像数据构建的所有配置文件和扩展。文件格式也在[ISO-JPEG2000-6]中定义。建议的文件后缀为“jpm”
To: ietf-types@iana.org
Subject: Registration of Standard MIME media type image/jpm
To: ietf-types@iana.org
Subject: Registration of Standard MIME media type image/jpm
MIME media type name: image MIME subtype name: jpm Required parameters: none Optional parameters: none It is up to the implementation to determine the application (if necessary) and render the image to the user. Encoding considerations: files are binary and should be transmitted in a suitable encoding without CR/LF conversion, 7-bit stripping etc.; base64 is a suitable encoding; Security considerations: see above
MIME媒体类型名称：图像MIME子类型名称：jpm必需参数：无可选参数：无由实现确定应用程序（如有必要）并将图像呈现给用户。编码注意事项：文件为二进制文件，应以适当的编码传输，无需CR/LF转换、7位剥离等。；base64是合适的编码；安全注意事项：见上文
Interoperability considerations: A number of interoperating
implementations are under development
within the JPEG 2000 community.
Published specification: ISO/IEC 15444-6, JPEG 2000 Compound
Image File Format
Applications: Imaging, fax, messaging, scanning
Additional information:
Magic number(s): 12 byte string: X'0000 000C 6A50 2020
0D0A 870A' (for all JPEG-2000 family
files)
File extension(s): jpm and jpgm are both declared at
http://www.nist.gov/nics/; jpm is
preferred
Macintosh File Type Code(s): 'jpm '
Person & email address to contact for further information:
JPEG Webmaster - mimesupport@jpeg.org
JPEG Convenor - convenor@jpeg.org
JPEG 2000 Editor - J2KEditor@jpeg.org
Intended usage: COMMON
Change controller: JPEG Webmaster
Interoperability considerations: A number of interoperating
implementations are under development
within the JPEG 2000 community.
Published specification: ISO/IEC 15444-6, JPEG 2000 Compound
Image File Format
Applications: Imaging, fax, messaging, scanning
Additional information:
Magic number(s): 12 byte string: X'0000 000C 6A50 2020
0D0A 870A' (for all JPEG-2000 family
files)
File extension(s): jpm and jpgm are both declared at
http://www.nist.gov/nics/; jpm is
preferred
Macintosh File Type Code(s): 'jpm '
Person & email address to contact for further information:
JPEG Webmaster - mimesupport@jpeg.org
JPEG Convenor - convenor@jpeg.org
JPEG 2000 Editor - J2KEditor@jpeg.org
Intended usage: COMMON
Change controller: JPEG Webmaster
This document registers the MIME types image/jp2, image/jpx, video/mj2, and image/jpm, defined above.
本文档注册了上面定义的MIME类型image/jp2、image/jpx、video/mj2和image/jpm。
This document has benefited greatly by contributions from many people, including Eric Edwards and Takahiro Fukuhara. Their contribution is gratefully acknowledged.
这份文件得益于许多人的贡献，包括埃里克·爱德华兹和福原隆弘。感谢他们的贡献。
[ISO-JPEG2000-1] ITU-T Recommendation T.800 | ISO/IEC 15444-1. International Organization for Standardization, "JPEG 2000 Image Coding System: Core Coding System".
[ISO-JPEG2000-1]ITU-T建议T.800 | ISO/IEC 15444-1。国际标准化组织，“JPEG 2000图像编码系统：核心编码系统”。
[ISO-JPEG2000-2] International Organization for Standardization, "JPEG 2000 Image Coding System: Extensions", IS 15444-2.
[ISO-JPEG2000-2]国际标准化组织，“JPEG2000图像编码系统：扩展”，IS 15444-2。
[ISO-JPEG2000-3] International Organization for Standardization, "Motion JPEG 2000", IS 15444-3.
[ISO-JPEG2000-3]国际标准化组织，“运动JPEG2000”，IS 15444-3。
[ISO-JPEG2000-6] International Organization for Standardization, "JPEG 2000 Image Coding System: Compound Image File Format", IS 15444-6.
[ISO-JPEG2000-6]国际标准化组织，“JPEG 2000图像编码系统：复合图像文件格式”，IS 15444-6。
[ISO-JPEG2000-12] International Organization for Standardization, "JPEG 2000 Image Coding System: ISO base media file format", IS 15444-12 (technically identical to ISO/IEC 14496-12.
[ISO-JPEG2000-12]国际标准化组织，“JPEG 2000图像编码系统：ISO基本媒体文件格式”为15444-12（技术上与ISO/IEC 14496-12相同）。
[MIME1] Freed, N. and n. Borenstein, "Multipurpose Internet Mail Extensions [MIME] Part One: Format of Internet Message Bodies", RFC 2045, November 1996.
弗里德，N.和N。Borenstein，“多用途互联网邮件扩展[MIME]第一部分：互联网邮件正文格式”，RFC 20451996年11月。
[ISO-JPEG2000-4] International Organization for Standardization, "JPEG 2000 Image Coding System: Conformance Testing", IS 15444-4.
[ISO-JPEG2000-4]国际标准化组织，“JPEG 2000图像编码系统：一致性测试”，IS 15444-4。
[ISO-JPEG2000-5] International Organization for Standardization, "JPEG 2000 Image Coding System: Reference Software", IS 15444-5.
[ISO-JPEG2000-5]国际标准化组织，“JPEG 2000图像编码系统：参考软件”，IS 15444-5。
[ISO-JPEG2000-8] International Organization for Standardization, "JPEG 2000 Image Coding System: JPSEC - Secure JPEG 2000", IS 15444-8.
[ISO-JPEG2000-8]国际标准化组织，“JPEG2000图像编码系统：JPSEC-安全JPEG2000”，IS 15444-8。
[ISO-JPEG2000-9] International Organization for Standardization, "JPEG 2000 Image Coding System: JPIP - Interactivity tools, APIs and protocols", IS 15444-9.
[ISO-JPEG2000-9]国际标准化组织，“JPEG2000图像编码系统：JPIP-交互工具、API和协议”，IS 15444-9。
[ISO-JPEG2000-10] International Organization for Standardization, "JPEG 2000 Image Coding System: JP3D - 3-D and floating point data", IS 15444-10.
[ISO-JPEG2000-10]国际标准化组织，“JPEG2000图像编码系统：JP3D-3-D和浮点数据”，IS 15444-10。
[ISO-JPEG2000-11] International Organization for Standardization, "JPEG 2000 Image Coding System: JPWL - Wireless", IS 15444-11.
[ISO-JPEG2000-11]国际标准化组织，“JPEG2000图像编码系统：JPWL-无线”，IS 15444-11。
[ISO-JPEG-1] ITU-T Recommendation T.81 | ISO/IEC 10918-1:1994, Information technology - Digital compression and coding of continuous-tone still images: Requirements and guidelines.
[ISO-JPEG-1]ITU-T建议T.81 | ISO/IEC 10918-1:1994，信息技术-连续色调静态图像的数字压缩和编码：要求和指南。
[ISO-JPEG-2] ITU-T Recommendation T.83 | ISO/IEC 10918-2:1995, Information technology - Digital compression and coding of continuous-tone still images: Compliance testing.
[ISO-JPEG-2]ITU-T建议T.83 | ISO/IEC 10918-2:1995，信息技术-连续色调静态图像的数字压缩和编码：符合性测试。
[ISO-JPEG-3] ITU-T Recommendation T.84 | ISO/IEC 10918-3:1996, Information technology - Digital compression and coding of continuous-tone still images: Extensions.
[ISO-JPEG-3]ITU-T建议T.84 | ISO/IEC 10918-3:1996，信息技术-连续色调静态图像的数字压缩和编码：扩展。
[ISO-JPEG-4] ITU-T Recommendation T.86 | ISO/IEC 10918-4, Information technology - Digital compression and coding of continuous-tone still images: Registration of JPEG Profiles, SPIFF Profiles, SPIFF Tags, SPIFF colour Spaces, APPn Markers, SPIFF, Compression types and Registration authorities (REGAUT).
[ISO-JPEG-4]ITU-T建议T.86 | ISO/IEC 10918-4，信息技术-连续色调静态图像的数字压缩和编码：JPEG配置文件、SPIFF配置文件、SPIFF标签、SPIFF颜色空间、APPn标记、SPIFF、压缩类型和注册机构（REGAUT）的注册。
[JFIF] JPEG File Interchange Format, Version 1.02. Published and made freely available by C-Cube Microsystems. Corporate Communications, 1778 McCarthy Blvd., Milpitas, CA 95035
[JFIF]JPEG文件交换格式，版本1.02。由C-Cube Microsystems出版并免费提供。公司通信，加利福尼亚州米尔皮塔斯麦卡锡大道1778号，邮编95035
[RFC-TIFF] Parsons, G. and J. Rafferty, "Tag Image File Format (TIFF) - image/tiff MIME Sub-type Registration", RFC 3302, September 2002.
[RFC-TIFF]Parsons，G.和J.Rafferty，“标签图像文件格式（TIFF）-图像/TIFF MIME子类型注册”，RFC 33022002年9月。
[ISO-MPEG4] ISO/IEC 14496, Information technology - Coding of Audio-Visual Objects.
[ISO-MPEG4]ISO/IEC 14496，信息技术-视听对象的编码。
David Singer Apple Computer, Inc. One Infinite Loop, MS:302-3MT Cupertino CA 95014 USA
David Singer苹果电脑有限公司One Infinite Loop，MS:302-3MT Cupertino CA 95014美国
Phone: +1 408 974 3162
EMail: singer@apple.com
Phone: +1 408 974 3162
EMail: singer@apple.com
Richard Clark (Current JPEG Webmaster) Elysium Ltd Milton House Whitehill Road Crowborough East Sussex TN6 1LB UK
Richard Clark（现任JPEG网站管理员）Elysium有限公司米尔顿大厦怀特希尔路克劳伯勒东苏塞克斯TN6 1LB英国
Phone: +44 1892 667411
Fax: +44 1892 667433
EMail: richard@elysium.ltd.uk
Phone: +44 1892 667411
Fax: +44 1892 667433
EMail: richard@elysium.ltd.uk
Dr. Daniel T Lee (Current JPEG Convenor) Yahoo!, Inc. 701, First Avenue Sunnyvale, California 94089, USA
Daniel T Lee博士（当前JPEG召集人）Yahoo！，美国加利福尼亚州桑尼维尔第一大道701号，邮编94089
Phone: +1 408 349 7051
Fax: +1 253 830 0372
EMail: dlee@yahoo-inc.com
Phone: +1 408 349 7051
Fax: +1 253 830 0372
EMail: dlee@yahoo-inc.com
Copyright (C) The Internet Society (2004). This document is subject to the rights, licenses and restrictions contained in BCP 78 and except as set forth therein, the authors retain all their rights.
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知识产权
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Acknowledgement
确认
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