## Jpeg2000 Tags

The tags below are extracted from JPEG 2000 images and the JUMBF metadata in JPEG images. Note that ExifTool currently writes only EXIF, IPTC and XMP tags in Jpeg2000 images.

> Tag ID | Tag Name | Writable | Values / Notes
> --- | --- | --- | ---
> 'Exif' | EXIF | - | --> EXIF Tags
> 'asoc' | Association | - | --> Jpeg2000 Tags
> 'bfil' | BinaryFilter | no |
> 'bpcc' | BitsPerComponent | no |
> 'cdef' | ComponentDefinition | no |
> 'cgrp' | ColorGroup | no |
> 'chck' | DigitalSignature | no |
> 'cmap' | ComponentMapping | no |
> 'colr' | ColorSpecification | - | --> Jpeg2000 ColorSpec Tags
> 'comp' | Composition | no |
> 'copt' | CompositionOptions | no |
> 'cref' | Cross-Reference | no |
> 'creg' | CodestreamRegistration | no |
> 'drep' | DesiredReproductions | no |
> 'dtbl' | DataReference | no |
> 'flst' | FragmentList | no |
> 'free' | Free | no |
> 'ftbl' | FragmentTable | no |
> 'ftyp' | FileType | - | --> Jpeg2000 FileType Tags
> 'gtso' | GraphicsTechnologyStandardOutput | no |
> 'ihdr' | ImageHeader | - | --> Jpeg2000 ImageHeader Tags
> 'inst' | InstructionSet | no |
> 'jP ' | JP2Signature | no |
> 'jp2c' | ContiguousCodestream PreviewImage | no no |
> 'jp2h' | JP2Header | - | --> Jpeg2000 Tags
> 'jp2i' | IntellectualProperty | - | --> XMP Tags
> 'jpch' | CodestreamHeader | - | --> Jpeg2000 Tags
> 'jplh' | CompositingLayerHeader | - | --> Jpeg2000 Tags
> 'json' | JSONData | - | --> JSON Tags (by default, data in this tag is parsed using the ExifTool JSON module to to allow individual tags to be accessed when reading, but it may also be extracted as a block via the "JSONData" tag or by setting the API BlockExtract option)
> 'jumb' | JUMBFBox | - | --> Jpeg2000 Tags
> 'jumd' | JUMBFDescr | - | --> Jpeg2000 JUMD Tags
> 'jxlc' | JXLCodestream | no | (Codestream in JPEG XL image. Currently processed only to determine ImageSize)
> 'lbl ' | Label | no |
> 'mdat' | MediaData | no |
> 'mp7b' | MPEG7Binary | no |
> 'nlst' | NumberList | no |
> 'opct' | Opacity | no |
> 'pclr' | Palette | no |
> 'prfl' | Profile | no |
> 'res ' | Resolution | - | --> Jpeg2000 Tags
> 'resc' | CaptureResolution | - | --> Jpeg2000 CaptureResolution Tags
> 'resd' | DisplayResolution | - | --> Jpeg2000 DisplayResolution Tags
> 'roid' | ROIDescription | no |
> 'rreq' | ReaderRequirements | no |
> 'uinf' | UUIDInfo | - | --> Jpeg2000 Tags
> 'ulst' | UUIDList | no |
> 'url ' | URL | no |
> 'uuid' | UUID-EXIF UUID-EXIF2 UUID-EXIF_bad UUID-IPTC UUID-IPTC2 UUID-XMP UUID-GeoJP2 UUID-Photoshop UUID-Signature UUID-Unknown | - - - - - - - - no no | --> EXIF Tags --> EXIF Tags --> EXIF Tags --> IPTC Tags --> IPTC Tags --> XMP Tags --> EXIF Tags --> Photoshop Tags
> 'xml ' | XML XMP | undef!+ - | (by default, the XML data in this tag is parsed using the ExifTool XMP module to to allow individual tags to be accessed when reading, but it may also be extracted as a block via the "XML" tag, which is also how this tag is written and copied. It may also be extracted as a block by setting the API BlockExtract option. This is a List-type tag because multiple XML blocks may exist) --> XMP XML Tags (used for XMP in JPEG XL files) --> XMP Tags

## Jpeg2000 ColorSpec Tags

> Index1 | Tag Name | Writable | Values / Notes
> --- | --- | --- | ---
> 0 | ColorSpecMethod | no | 1 = Enumerated 2 = Restricted ICC 3 = Any ICC 4 = Vendor Color
> 1 | ColorSpecPrecedence | no |
> 2 | ColorSpecApproximation | no | 0 = Not Specified 1 = Accurate 2 = Exceptional Quality 3 = Reasonable Quality 4 = Poor Quality
> 3 | ICC_Profile ColorSpace ColorSpecData | - no no | --> ICC_Profile Tags
> 0 = Bi-level 1 = YCbCr(1) 3 = YCbCr(2) 4 = YCbCr(3) 9 = PhotoYCC 11 = CMY 12 = CMYK 13 = YCCK 14 = CIELab 15 = Bi-level(2) |  | 16 = sRGB 17 = Grayscale 18 = sYCC 19 = CIEJab 20 = e-sRGB 21 = ROMM-RGB 22 = YPbPr(1125/60) 23 = YPbPr(1250/50) 24 = e-sYCC

## Jpeg2000 FileType Tags

> Index4 | Tag Name | Writable | Values / Notes
> --- | --- | --- | ---
> 0 | MajorBrand | no | 'jp2 ' = JPEG 2000 Image (.JP2) 'jpm ' = JPEG 2000 Compound Image (.JPM) 'jpx ' = JPEG 2000 with extensions (.JPX) 'jxl ' = JPEG XL Image (.JXL)
> 1 | MinorVersion | no |
> 2 | CompatibleBrands | no |

## Jpeg2000 ImageHeader Tags

> Index1 | Tag Name | Writable | Values / Notes
> --- | --- | --- | ---
> 0 | ImageHeight | no |
> 4 | ImageWidth | no |
> 8 | NumberOfComponents | no |
> 10 | BitsPerComponent | no |
> 11 | Compression | no |
> 0 = Uncompressed 1 = Modified Huffman 2 = Modified READ 3 = Modified Modified READ 4 = JBIG 5 = JPEG 6 = JPEG-LS 7 = JPEG 2000 8 = JBIG2

## Jpeg2000 JUMD Tags

Information extracted from the JUMBF description box.

> Tag ID | Tag Name | Writable | Values / Notes
> --- | --- | --- | ---
> 'jumd-flags' | JUMDFlags | no | Bit 0 = Requestable Bit 1 = Label Bit 2 = ID Bit 3 = Signature
> 'jumd-id' | JUMDID | no |
> 'jumd-label' | JUMDLabel | no |
> 'jumd-sig' | JUMDSignature | no |
> 'jumd-type' | JUMDType | no |

## Jpeg2000 CaptureResolution Tags

> Index1 | Tag Name | Writable | Values / Notes
> --- | --- | --- | ---
> 0 | CaptureYResolution | no |
> 4 | CaptureXResolution | no |
> 8 | CaptureYResolutionUnit | no | --> Jpeg2000 ResolutionUnit Values
> 9 | CaptureXResolutionUnit | no | --> Jpeg2000 ResolutionUnit Values

## Jpeg2000 ResolutionUnit Values

> Value | ResolutionUnit | Value | ResolutionUnit | Value | ResolutionUnit
> --- | --- | --- | --- | --- | ---
> -3 | = km | 1 | = 10 cm | 5 | = 0.01 mm
> -2 | = 100 m | 2 | = cm | 6 | = um
> -1 | = 10 m | 3 | = mm |  |
> 0 | = m | 4 | = 0.1 mm |  |

## Jpeg2000 DisplayResolution Tags

> Index1 | Tag Name | Writable | Values / Notes
> --- | --- | --- | ---
> 0 | DisplayYResolution | no |
> 4 | DisplayXResolution | no |
> 8 | DisplayYResolutionUnit | no | --> Jpeg2000 ResolutionUnit Values
> 9 | DisplayXResolutionUnit | no | --> Jpeg2000 ResolutionUnit Values

(This document generated automatically by Image::ExifTool::BuildTagLookup)
Last revised Apr 13, 2021

<-- ExifTool Tag Names