JPEG XT
From Just Solve the File Format Problem
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** [https://webstore.iec.ch/preview/info_isoiec18477-1%7Bed1.0%7Den.pdf ISO/IEC 18477-1 preview] | ** [https://webstore.iec.ch/preview/info_isoiec18477-1%7Bed1.0%7Den.pdf ISO/IEC 18477-1 preview] | ||
* [http://www.iso.org/iso/catalogue_detail.htm?csnumber=66070 ISO/IEC PRF 18477-2] - Part 2: Extensions for high dynamic range images | * [http://www.iso.org/iso/catalogue_detail.htm?csnumber=66070 ISO/IEC PRF 18477-2] - Part 2: Extensions for high dynamic range images | ||
− | * [http://www.iso.org/iso/catalogue_detail.htm?csnumber=66071 ISO/IEC 18477-3] - Part 3: Box file format | + | * [http://www.iso.org/iso/catalogue_detail.htm?csnumber=66071 ISO/IEC 18477-3:2015] - Part 3: Box file format |
* [http://www.iso.org/iso/catalogue_detail.htm?csnumber=66072 ISO/IEC CD 18477-4] - Part 4: Conformance testing | * [http://www.iso.org/iso/catalogue_detail.htm?csnumber=66072 ISO/IEC CD 18477-4] - Part 4: Conformance testing | ||
* [http://www.iso.org/iso/catalogue_detail.htm?csnumber=66073 ISO/IEC CD 18477-5] - Part 5: Reference software | * [http://www.iso.org/iso/catalogue_detail.htm?csnumber=66073 ISO/IEC CD 18477-5] - Part 5: Reference software |
Revision as of 20:42, 11 January 2016
JPEG XT is an extension of the JPEG and JPEG-HDR graphics formats. It offers higher bit depths, high dynamic range, lossless and near-lossless compression, and transparency.As of 2015-11, it is apparently still in development, though Part 1 of the standard has been published.
Contents |
Format details
Like JPEG-HDR, it uses APP11 segments. Unlike JPEG-HDR, the data in those segments apparently uses boxes/atoms format, with the brand "jpxt
".
Specifications
The documents listed here are not necessarily available yet, and if they are, they're probably not free to download.
- ISO/IEC 18477-1:2015 - Part 1: Scalable compression and coding of continuous-tone still images
- ISO/IEC PRF 18477-2 - Part 2: Extensions for high dynamic range images
- ISO/IEC 18477-3:2015 - Part 3: Box file format
- ISO/IEC CD 18477-4 - Part 4: Conformance testing
- ISO/IEC CD 18477-5 - Part 5: Reference software
- ISO/IEC FDIS 18477-6 - Part 6: IDR Integer Coding
- ISO/IEC FDIS 18477-7 - Part 7: HDR Floating-Point Coding
- ISO/IEC DIS 18477-8 - Part 8: Lossless and Near-lossless Coding
- ISO/IEC DIS 18477-9 - Part 9: Alpha Channel Coding