NEPOMUK EXIF Ontology

Task-Force Ontologies 02.09.2008

Latest Version:
http://www.semanticdesktop.org/ontologies/2007/05/10/nexif
This Version:
This file refers to the Revision 1.0 of NEXIF. Minor changes may be implemented in future revisions. With each new revision, the documentation and all serializations of the ontology will be updated. The URI identifying this version (but not the namespace) is http://www.semanticdesktop.org/ontologies/2007/05/10/nexif/v1.0/
Authors:
Antoni Mylka, DFKI, antoni.mylka@dfki.de
Leo Sauermann, DFKI, leo.sauermann@dfki.de
Michael Sintek, DFKI, michael.sintek@dfki.de
Ludger van Elst, DFKI, elst@dfki.uni-kl.de
Editor:
Antoni Mylka, DFKI, antoni.mylka@dfki.de
Contributors:
Evgeny 'phreedom' Egorochkin, KDE Strigi Developer, stexx@mail.ru
Christiaan Fluit, Aduna, christiaan.fluit@aduna-software.com
Ontology:
XML/RDFS Serialization: NEXIF (Data Graph Only)
XML/RDFS Serialization: NEXIF (Metadata Graph Only)
TriG Serialization: NEXIF (Graph Set)

Abstract

EXIF is a common standard of basic image metadata used in digital cameras and in image management software. Masahide Kanzaki created an ontology that allows the EXIF metadata to be expressed in RDF. NEXIF is a simple adaptation of the Kanzaki's ontology to fit it into the NEPOMUK Information Element Framework. This document gives an overview of NEXIF, its classes and properties.

Status of this document

This document arose from the work of the Task-Force ontologies within the NEPOMUK project. This document is a DRAFT made available by the Nepomuk Consortium for discussion only. This document is a work in progress and may be updated, replaced, or rendered obsolete by other documents at any time.

This document is a part in a set of seven documents, which together comprise the complete specification of the Nepomuk Information Element Ontology Framework. These are: NIE, NFO, NCO, NMO, NCAL, NEXIF, NID3.

Ontology description

Exchangeable Image Format (EXIF) is a specification of image metadata vocabulary published by the Japan Electronics and Information Technology Industries Association [EXIFSPEC]. It has gained wide acceptance within the digital photography community. Most of today's digital cameras annotate the pictures with EXIF annotations.

An Exif description is to a large extent a set of name/value pairs. Exif descriptions have little structural information, apart from simple part-of relationships. Therefore adapting it to RDF is quite straightforward. This has been expertly done by Masahide Kanzaki [EXIFRDF]. His ontology meticulously recreates all properties defined in the specification document as rdf properties. They don't have their domains and ranges specified though. Therefore, during the adaptation of Kanzaki ontology to the Nepomuk Representational Language the domains and ranges have been added.

The Nepomuk Exif Ontology (NEXIF) has been linked with two other ontologies. The first link allows for easy annotation of image files with exif properties. It has been realized with the nexif:Photo class, which is a subclass of nfo:Image.

Examples

Example files that show how to use the expressive power of the ontology will be published here in near future.

References

[EXIFSPEC]
Exchangeable Image Format for digital still cameras: Exif Version 2.2., JEITA Technical Standardization Committee on AV & IT Storage Systems and Equipment. Standard of Japan Electronics and Information Technology Industries Association: JEITA CP-3451. Japan, April 2002. http://exif.org/Exif2-2.PDF
[EXIFRDF]
Exif data description vocabulary, Masahide Kanzaki http://www.kanzaki.com/ns/exif

Ontology Classes Description

Photo

Superclasses exif:IFD, nfo:Image, nie:InformationElement, nfo:Media, nfo:RasterImage, rdfs:Resource, nfo:Visual
Subclasses --
In domain of: nexif:apertureValue, nexif:artist, nexif:bitsPerSample, nexif:brightnessValue, nexif:cfaPattern, nexif:colorSpace, nexif:componentsConfiguration, nexif:compressedBitsPerPixel, nexif:compression, nexif:contrast, nexif:copyright, nexif:customRendered, nexif:datatype, nexif:date, nexif:dateAndOrTime, nexif:dateTime, nexif:dateTimeDigitized, nexif:dateTimeOriginal, nexif:deviceSettingDescription, nexif:digitalZoomRatio, nexif:exifAttribute, nexif:exifIFDPointer, nexif:exifVersion, nexif:exifdata, nexif:exposureBiasValue, nexif:exposureIndex, nexif:exposureMode, nexif:exposureProgram, nexif:exposureTime, nexif:fNumber, nexif:fileSource, nexif:flash, nexif:flashEnergy, nexif:flashpixVersion, nexif:focalLength, nexif:focalLengthIn35mmFilm, nexif:focalPlaneResolutionUnit, nexif:focalPlaneXResolution, nexif:focalPlaneYResolution, nexif:gainControl, nexif:geo, nexif:gps, nexif:gpsAltitudeRef, nexif:gpsAreaInformation, nexif:gpsDOP, nexif:gpsDateStamp, nexif:gpsDestBearing, nexif:gpsDestBearingRef, nexif:gpsDestDistance, nexif:gpsDestDistanceRef, nexif:gpsDestLatitudeRef, nexif:gpsDestLongitudeRef, nexif:gpsDifferential, nexif:gpsImgDirection, nexif:gpsImgDirectionRef, nexif:gpsInfo, nexif:gpsInfoIFDPointer, nexif:gpsLatitudeRef, nexif:gpsLongitudeRef, nexif:gpsMapDatum, nexif:gpsMeasureMode, nexif:gpsProcessingMethod, nexif:gpsSatellites, nexif:gpsSpeed, nexif:gpsSpeedRef, nexif:gpsStatus, nexif:gpsTimeStamp, nexif:gpsTrack, nexif:gpsTrackRef, nexif:gpsVersionID, nexif:height, nexif:ifdPointer, nexif:imageConfig, nexif:imageDataCharacter, nexif:imageDataStruct, nexif:imageDescription, nexif:imageLength, nexif:imageUniqueID, nexif:imageWidth, nexif:interopInfo, nexif:interoperabilityIFDPointer, nexif:interoperabilityIndex, nexif:interoperabilityVersion, nexif:isoSpeedRatings, nexif:jpegInterchangeFormat, nexif:jpegInterchangeFormatLength, nexif:length, nexif:lightSource, nexif:make, nexif:makerNote, nexif:maxApertureValue, nexif:meter, nexif:meteringMode, nexif:mm, nexif:model, nexif:oecf, nexif:orientation, nexif:photometricInterpretation, nexif:pictTaking, nexif:pimBrightness, nexif:pimColorBalance, nexif:pimContrast, nexif:pimInfo, nexif:pimSaturation, nexif:pimSharpness, nexif:pixelXDimension, nexif:pixelYDimension, nexif:planarConfiguration, nexif:primaryChromaticities, nexif:printImageMatchingIFDPointer, nexif:recOffset, nexif:referenceBlackWhite, nexif:relatedFile, nexif:relatedImageFileFormat, nexif:relatedImageLength, nexif:relatedImageWidth, nexif:relatedSoundFile, nexif:resolution, nexif:resolutionUnit, nexif:rowsPerStrip, nexif:samplesPerPixel, nexif:saturation, nexif:sceneCaptureType, nexif:sceneType, nexif:seconds, nexif:sensingMethod, nexif:sharpness, nexif:shutterSpeedValue, nexif:software, nexif:spatialFrequencyResponse, nexif:spectralSensitivity, nexif:stripByteCounts, nexif:stripOffsets, nexif:subSecTime, nexif:subSecTimeDigitized, nexif:subSecTimeOriginal, nexif:subjectArea, nexif:subjectDistance, nexif:subjectDistanceRange, nexif:subjectLocation, nexif:subseconds, nexif:tagNumber, nexif:tagid, nexif:transferFunction, nexif:unknown, nexif:userComment, nexif:userInfo, nexif:versionInfo, nexif:whiteBalance, nexif:whitePoint, nexif:width, nexif:xResolution, nexif:yCbCrCoefficients, nexif:yCbCrPositioning, nexif:yCbCrSubSampling, nexif:yResolution
In range of: nexif:exifIFDPointer, nexif:gpsInfoIFDPointer, nexif:ifdPointer, nexif:interoperabilityIFDPointer, nexif:printImageMatchingIFDPointer
Description An Image File Directory

Ontology Properties Description

apertureValue

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties exif:apertureValue, nexif:exifAttribute, exif:exifAttribute, exif:pictTaking, nexif:pictTaking
Subproperties --
Description tagNumber: 37378 The lens aperture. The unit is the APEX value.

artist

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range nco:Contact
Superproperties exif:artist, dc:contributor, nco:contributor, nco:creator, dc:creator, nexif:exifAttribute, exif:exifAttribute
Subproperties --
Description tagNumber: 315 Person who created the image

bitsPerSample

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties exif:bitsPerSample, nexif:exifAttribute, exif:exifAttribute, exif:imageDataStruct, nexif:imageDataStruct, nexif:resolution, exif:resolution
Subproperties --
Description tagNumber: 258 The number of bits per image component. In this standard each component of the image is 8 bits, so the value for this tag is 8. See also SamplesPerPixel. In JPEG compressed data a JPEG marker is used instead of this tag.

brightnessValue

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties exif:brightnessValue, nexif:exifAttribute, exif:exifAttribute, exif:pictTaking, nexif:pictTaking
Subproperties --
Description tagNumber: 37379 The value of brightness. The unit is the APEX value. Ordinarily it is given in the range of -99.99 to 99.99. Note that if the numerator of the recorded value is FFFFFFFF.H, Unknown shall be indicated.

cfaPattern

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties exif:cfaPattern, nexif:exifAttribute, exif:exifAttribute, exif:pictTaking, nexif:pictTaking
Subproperties --
Description tagNumber: 41730 The color filter array (CFA) geometric pattern of the image sensor when a one-chip color area sensor is used. It does not apply to all sensing methods.

colorSpace

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties exif:colorSpace, nexif:exifAttribute, exif:exifAttribute, nexif:imageDataCharacter, exif:imageDataCharacter
Subproperties --
Description tagNumber: 40961 The color space information tag (ColorSpace) is always recorded as the color space specifier. Normally sRGB (=1) is used to define the color space based on the PC monitor conditions and environment.

componentsConfiguration

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties exif:componentsConfiguration, nexif:exifAttribute, exif:exifAttribute, nexif:imageConfig, exif:imageConfig
Subproperties --
Description Information specific to compressed data. The channels of each component are arranged in order from the 1st component to the 4th. For uncompressed data the data arrangement is given in the PhotometricInterpretation tag. However, since PhotometricInterpretation can only express the order of Y,Cb and Cr, this tag is provided for cases when compressed data uses components other than Y, Cb, and Cr and to enable support of other sequences. tagNumber: 37121

compressedBitsPerPixel

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties exif:compressedBitsPerPixel, nexif:exifAttribute, exif:exifAttribute, nexif:imageConfig, exif:imageConfig
Subproperties --
Description tagNumber: 37122 Information specific to compressed data. The compression mode used for a compressed image is indicated in unit bits per pixel.

compression

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties exif:compression, nexif:exifAttribute, exif:exifAttribute, exif:imageDataStruct, nexif:imageDataStruct
Subproperties --
Description The compression scheme used for the image data. When a primary image is JPEG compressed, this designation is not necessary and is omitted. When thumbnails use JPEG compression, this tag value is set to 6. tagNumber: 259

contrast

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties exif:contrast, nexif:exifAttribute, exif:exifAttribute, exif:pictTaking, nexif:pictTaking
Subproperties --
Description tagNumber: 41992 The direction of contrast processing applied by the camera when the image was shot.

copyright

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties exif:copyright, nexif:exifAttribute, exif:exifAttribute, dc:rights
Subproperties --
Description tagNumber: 33432 Copyright information. In this standard the tag is used to indicate both the photographer and editor copyrights. It is the copyright notice of the person or organization claiming rights to the image.

customRendered

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties exif:customRendered, nexif:exifAttribute, exif:exifAttribute, exif:pictTaking, nexif:pictTaking
Subproperties --
Description The use of special processing on image data, such as rendering geared to output. When special processing is performed, the reader is expected to disable or minimize any further processing. tagNumber: 41985

datatype

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties exif:datatype, dc:type
Subproperties --
Description The Exif field data type, such as ascii, byte, short etc.

date

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:dateTime
Superproperties exif:date, dc:date
Subproperties nexif:dateTime, nexif:dateTimeDigitized, nexif:dateTimeOriginal, nexif:gpsDateStamp
Description a date information. Usually saved as YYYY:MM:DD (HH:MM:SS) format in Exif data, but represented here as W3C-DTF format

dateAndOrTime

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties exif:dateAndOrTime, nexif:exifAttribute, exif:exifAttribute
Subproperties nexif:dateTimeDigitized, nexif:dateTimeOriginal, nexif:subSecTime, nexif:subSecTimeDigitized, nexif:subSecTimeOriginal
Description An attribute relating to Date and/or Time

dateTime

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:dateTime
Superproperties nexif:date, exif:date, dc:date, exif:dateTime, nexif:exifAttribute, exif:exifAttribute
Subproperties --
Description The date and time of image creation. In this standard it is the date and time the file was changed. tagNumber: 306

dateTimeDigitized

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:dateTime
Superproperties nexif:date, exif:date, dc:date, exif:dateAndOrTime, nexif:dateAndOrTime, exif:dateTimeDigitized, nexif:exifAttribute, exif:exifAttribute
Subproperties --
Description The date and time when the image was stored as digital data. If, for example, an image was captured by DSC and at the same time the file was recorded, then the DateTimeOriginal and DateTimeDigitized will have the same contents. tagNumber: 36868

dateTimeOriginal

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:dateTime
Superproperties nexif:date, exif:date, dc:date, exif:dateAndOrTime, nexif:dateAndOrTime, exif:dateTimeOriginal, nexif:exifAttribute, exif:exifAttribute
Subproperties --
Description tagNumber: 36867 The date and time when the original image data was generated. For a DSC the date and time the picture was taken are recorded.

deviceSettingDescription

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties exif:deviceSettingDescription, nexif:exifAttribute, exif:exifAttribute, exif:pictTaking, nexif:pictTaking
Subproperties --
Description tagNumber: 41995 Information on the picture-taking conditions of a particular camera model. The tag is used only to indicate the picture-taking conditions in the reader.

digitalZoomRatio

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties exif:digitalZoomRatio, nexif:exifAttribute, exif:exifAttribute, exif:pictTaking, nexif:pictTaking
Subproperties --
Description tagNumber: 41988 The digital zoom ratio when the image was shot. If the numerator of the recorded value is 0, this indicates that digital zoom was not used.

exifAttribute

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties exif:exifAttribute
Subproperties nexif:apertureValue, nexif:artist, nexif:bitsPerSample, nexif:brightnessValue, nexif:cfaPattern, nexif:colorSpace, nexif:componentsConfiguration, nexif:compressedBitsPerPixel, nexif:compression, nexif:contrast, nexif:copyright, nexif:customRendered, nexif:dateAndOrTime, nexif:dateTime, nexif:dateTimeDigitized, nexif:dateTimeOriginal, nexif:deviceSettingDescription, nexif:digitalZoomRatio, nexif:exifIFDPointer, nexif:exifVersion, nexif:exposureBiasValue, nexif:exposureIndex, nexif:exposureMode, nexif:exposureProgram, nexif:exposureTime, nexif:fNumber, nexif:fileSource, nexif:flash, nexif:flashEnergy, nexif:flashpixVersion, nexif:focalLength, nexif:focalLengthIn35mmFilm, nexif:focalPlaneResolutionUnit, nexif:focalPlaneXResolution, nexif:focalPlaneYResolution, nexif:gainControl, nexif:gpsAltitudeRef, nexif:gpsAreaInformation, nexif:gpsDOP, nexif:gpsDateStamp, nexif:gpsDestBearing, nexif:gpsDestBearingRef, nexif:gpsDestDistance, nexif:gpsDestDistanceRef, nexif:gpsDestLatitudeRef, nexif:gpsDestLongitudeRef, nexif:gpsDifferential, nexif:gpsImgDirection, nexif:gpsImgDirectionRef, nexif:gpsInfo, nexif:gpsInfoIFDPointer, nexif:gpsLatitudeRef, nexif:gpsLongitudeRef, nexif:gpsMapDatum, nexif:gpsMeasureMode, nexif:gpsProcessingMethod, nexif:gpsSatellites, nexif:gpsSpeed, nexif:gpsSpeedRef, nexif:gpsStatus, nexif:gpsTimeStamp, nexif:gpsTrack, nexif:gpsTrackRef, nexif:gpsVersionID, nexif:ifdPointer, nexif:imageConfig, nexif:imageDataCharacter, nexif:imageDataStruct, nexif:imageDescription, nexif:imageLength, nexif:imageUniqueID, nexif:imageWidth, nexif:interopInfo, nexif:interoperabilityIFDPointer, nexif:interoperabilityIndex, nexif:interoperabilityVersion, nexif:isoSpeedRatings, nexif:jpegInterchangeFormat, nexif:jpegInterchangeFormatLength, nexif:lightSource, nexif:make, nexif:makerNote, nexif:maxApertureValue, nexif:meteringMode, nexif:model, nexif:oecf, nexif:orientation, nexif:photometricInterpretation, nexif:pictTaking, nexif:pimBrightness, nexif:pimColorBalance, nexif:pimContrast, nexif:pimInfo, nexif:pimSaturation, nexif:pimSharpness, nexif:pixelXDimension, nexif:pixelYDimension, nexif:planarConfiguration, nexif:primaryChromaticities, nexif:printImageMatchingIFDPointer, nexif:recOffset, nexif:referenceBlackWhite, nexif:relatedFile, nexif:relatedImageFileFormat, nexif:relatedImageLength, nexif:relatedImageWidth, nexif:relatedSoundFile, nexif:resolutionUnit, nexif:rowsPerStrip, nexif:samplesPerPixel, nexif:saturation, nexif:sceneCaptureType, nexif:sceneType, nexif:sensingMethod, nexif:sharpness, nexif:shutterSpeedValue, nexif:software, nexif:spatialFrequencyResponse, nexif:spectralSensitivity, nexif:stripByteCounts, nexif:stripOffsets, nexif:subSecTime, nexif:subSecTimeDigitized, nexif:subSecTimeOriginal, nexif:subjectArea, nexif:subjectDistance, nexif:subjectDistanceRange, nexif:subjectLocation, nexif:transferFunction, nexif:userComment, nexif:userInfo, nexif:versionInfo, nexif:whiteBalance, nexif:whitePoint, nexif:xResolution, nexif:yCbCrCoefficients, nexif:yCbCrPositioning, nexif:yCbCrSubSampling, nexif:yResolution
Description A property that connects an IFD (or other resource) to one of its entries (Exif attribute). Super property which integrates all Exif tags. Domain definition dropped so that this vocabulary can be used to describe not only Exif IFD, but also general image.

exifIFDPointer

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range nexif:Photo
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:exif\_IFD\_Pointer, nexif:ifdPointer, exif:ifdPointer
Subproperties --
Description tagNumber: 34665 A pointer to the Exif IFD, which is a set of tags for recording Exif-specific attribute information.

exifVersion

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:exifVersion, nexif:versionInfo, exif:versionInfo
Subproperties --
Description tagNumber: 36864 Exif Version

exifdata

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties exif:exifdata
Subproperties --
Description An Exif IFD data entry

exposureBiasValue

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:exposureBiasValue, exif:pictTaking, nexif:pictTaking
Subproperties --
Description tagNumber: 37380 The exposure bias. The unit is the APEX value. Ordinarily it is given in the range of -99.99 to 99.99.

exposureIndex

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:exposureIndex, exif:pictTaking, nexif:pictTaking
Subproperties --
Description The exposure index selected on the camera or input device at the time the image is captured. tagNumber: 41493

exposureMode

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:exposureMode, exif:pictTaking, nexif:pictTaking
Subproperties --
Description tagNumber: 41986 the exposure mode set when the image was shot. In auto-bracketing mode, the camera shoots a series of frames of the same scene at different exposure settings.

exposureProgram

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:exposureProgram, exif:pictTaking, nexif:pictTaking
Subproperties --
Description tagNumber: 34850 The class of the program used by the camera to set exposure when the picture is taken.

exposureTime

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:exposureTime, exif:pictTaking, nexif:pictTaking, exif:seconds, nexif:seconds
Subproperties --
Description tagNumber: 33434 Exposure time, given in seconds (sec).

fNumber

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:fNumber, exif:pictTaking, nexif:pictTaking
Subproperties --
Description tagNumber: 33437 F number

fileSource

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:fileSource, exif:pictTaking, nexif:pictTaking
Subproperties --
Description The image source. If a DSC recorded the image, this tag value of this tag always be set to 3, indicating that the image was recorded on a DSC. tagNumber: 41728

flash

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:flash, exif:pictTaking, nexif:pictTaking
Subproperties --
Description tagNumber: 37385 The status of flash when the image was shot.

flashEnergy

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:flashEnergy, exif:pictTaking, nexif:pictTaking
Subproperties --
Description tagNumber: 41483 The strobe energy at the time the image is captured, as measured in Beam Candle Power Seconds (BCPS).

flashpixVersion

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:flashpixVersion, nexif:versionInfo, exif:versionInfo
Subproperties --
Description tagNumber: 40960 The Flashpix format version supported by a FPXR file. If the FPXR function supports Flashpix format Ver. 1.0, this is indicated similarly to ExifVersion by recording "0100" as 4-byte ASCII.

focalLength

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:focalLength, exif:length, nexif:length, exif:mm, nexif:mm, exif:pictTaking, nexif:pictTaking
Subproperties --
Description The actual focal length of the lens, in mm. Conversion is not made to the focal length of a 35 mm film camera. tagNumber: 37386

focalLengthIn35mmFilm

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:focalLengthIn35mmFilm, exif:length, nexif:length, exif:pictTaking, nexif:pictTaking
Subproperties --
Description The equivalent focal length assuming a 35mm film camera, in mm. A value of 0 means the focal length is unknown. Note that this tag differs from the FocalLength tag. tagNumber: 41989

focalPlaneResolutionUnit

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:focalPlaneResolutionUnit, exif:pictTaking, nexif:pictTaking
Subproperties --
Description The unit for measuring FocalPlaneXResolution and FocalPlaneYResolution. This value is the same as the ResolutionUnit. tagNumber: 41488

focalPlaneXResolution

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:focalPlaneXResolution, exif:pictTaking, nexif:pictTaking, nexif:resolution, exif:resolution
Subproperties --
Description The number of pixels in the image width (X) direction per FocalPlaneResolutionUnit on the camera focal plane. tagNumber: 41486

focalPlaneYResolution

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:focalPlaneYResolution, exif:pictTaking, nexif:pictTaking, nexif:resolution, exif:resolution
Subproperties --
Description tagNumber: 41487 The number of pixels in the image height (Y) direction per FocalPlaneResolutionUnit on the camera focal plane.

gainControl

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:gainControl, exif:pictTaking, nexif:pictTaking
Subproperties --
Description tagNumber: 41991 The degree of overall image gain adjustment.

geo

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range --
Superproperties exif:geo
Subproperties nexif:gps, nexif:gpsDest
Description Geometric data such as latitude, longitude and altitude. Usually saved as rational number.

gps

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range geo:Point
Superproperties exif:geo, nexif:geo
Subproperties --
Description The location where the picture has been made. This property aggregates values of two properties from the original EXIF specification: gpsLatitute (tag number 2) and gpsLongitude (tag number 4), and gpsAltitude (tag number 6).

gpsAltitudeRef

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:gpsAltitudeRef, nexif:gpsInfo, exif:gpsInfo
Subproperties --
Description Indicates the altitude used as the reference altitude. If the reference is sea level and the altitude is above sea level, 0 is given. If the altitude is below sea level, a value of 1 is given and the altitude is indicated as an absolute value in the GPSAltitude tag. The reference unit is meters. tagNumber: 5

gpsAreaInformation

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:gpsAreaInformation, nexif:gpsInfo, exif:gpsInfo
Subproperties --
Description A character string recording the name of the GPS area. The first byte indicates the character code used, and this is followed by the name of the GPS area. tagNumber: 28

gpsDOP

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:gpsDOP, nexif:gpsInfo, exif:gpsInfo
Subproperties --
Description The GPS DOP (data degree of precision). An HDOP value is written during two-dimensional measurement, and PDOP during three-dimensional measurement. tagNumber: 11

gpsDateStamp

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:dateTime
Superproperties nexif:date, exif:date, dc:date, nexif:exifAttribute, exif:exifAttribute, exif:gpsDateStamp, nexif:gpsInfo, exif:gpsInfo
Subproperties --
Description tagNumber: 29 date and time information relative to UTC (Coordinated Universal Time). The record format is "YYYY:MM:DD" while converted to W3C-DTF to use in RDF

gpsDest

Type rdf:Property, rdfs:Resource
Domain --
Range geo:Point
Superproperties exif:geo, nexif:geo
Subproperties --
Description Location of the destination. This property aggregates values of two other properties from the original exif specification. gpsDestLatitude (tag number 20) and gpsDestLongitude (tag number 22)

gpsDestBearing

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:gpsDestBearing, nexif:gpsInfo, exif:gpsInfo
Subproperties --
Description The bearing to the destination point. The range of values is from 0.00 to 359.99. tagNumber: 24

gpsDestBearingRef

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:gpsDestBearingRef, nexif:gpsInfo, exif:gpsInfo
Subproperties --
Description Indicates the reference used for giving the bearing to the destination point. 'T' denotes true direction and 'M' is magnetic direction. tagNumber: 23

gpsDestDistance

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:gpsDestDistance, nexif:gpsInfo, exif:gpsInfo
Subproperties --
Description The distance to the destination point. tagNumber: 26

gpsDestDistanceRef

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:gpsDestDistanceRef, nexif:gpsInfo, exif:gpsInfo
Subproperties --
Description Indicates the unit used to express the distance to the destination point. 'K', 'M' and 'N' represent kilometers, miles and knots. tagNumber: 25

gpsDestLatitudeRef

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:gpsDestLatitudeRef, nexif:gpsInfo, exif:gpsInfo
Subproperties --
Description tagNumber: 19 Reference for latitude of destination

gpsDestLongitudeRef

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:gpsDestLongitudeRef, nexif:gpsInfo, exif:gpsInfo
Subproperties --
Description Reference for longitude of destination tagNumber: 21

gpsDifferential

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:gpsDifferential, nexif:gpsInfo, exif:gpsInfo
Subproperties --
Description tagNumber: 30 Indicates whether differential correction is applied to the GPS receiver.

gpsImgDirection

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:gpsImgDirection, nexif:gpsInfo, exif:gpsInfo
Subproperties --
Description tagNumber: 17 The direction of the image when it was captured. The range of values is from 0.00 to 359.99.

gpsImgDirectionRef

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:gpsImgDirectionRef, nexif:gpsInfo, exif:gpsInfo
Subproperties --
Description tagNumber: 16 The reference for giving the direction of the image when it is captured. 'T' denotes true direction and 'M' is magnetic direction.

gpsInfo

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:gpsInfo
Subproperties nexif:gpsAltitudeRef, nexif:gpsAreaInformation, nexif:gpsDOP, nexif:gpsDateStamp, nexif:gpsDestBearing, nexif:gpsDestBearingRef, nexif:gpsDestDistance, nexif:gpsDestDistanceRef, nexif:gpsDestLatitudeRef, nexif:gpsDestLongitudeRef, nexif:gpsDifferential, nexif:gpsImgDirection, nexif:gpsImgDirectionRef, nexif:gpsLatitudeRef, nexif:gpsLongitudeRef, nexif:gpsMapDatum, nexif:gpsMeasureMode, nexif:gpsProcessingMethod, nexif:gpsSatellites, nexif:gpsSpeed, nexif:gpsSpeedRef, nexif:gpsStatus, nexif:gpsTimeStamp, nexif:gpsTrack, nexif:gpsTrackRef, nexif:gpsVersionID
Description An attribute relating to GPS information

gpsInfoIFDPointer

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range nexif:Photo
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:gpsInfo\_IFD\_Pointer, nexif:ifdPointer, exif:ifdPointer
Subproperties --
Description A pointer to the GPS IFD, which is a set of tags for recording GPS information. tagNumber: 34853

gpsLatitudeRef

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, nexif:gpsInfo, exif:gpsInfo, exif:gpsLatitudeRef
Subproperties --
Description tagNumber: 1 Indicates whether the latitude is north or south latitude. The ASCII value 'N' indicates north latitude, and 'S' is south latitude.

gpsLongitudeRef

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, nexif:gpsInfo, exif:gpsInfo, exif:gpsLongitudeRef
Subproperties --
Description tagNumber: 3 Indicates whether the longitude is east or west longitude. ASCII 'E' indicates east longitude, and 'W' is west longitude.

gpsMapDatum

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, nexif:gpsInfo, exif:gpsInfo, exif:gpsMapDatum
Subproperties --
Description The geodetic survey data used by the GPS receiver. If the survey data is restricted to Japan, the value of this tag is 'TOKYO' or 'WGS-84'. If a GPS Info tag is recorded, it is strongly recommended that this tag be recorded. tagNumber: 18

gpsMeasureMode

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, nexif:gpsInfo, exif:gpsInfo, exif:gpsMeasureMode
Subproperties --
Description The GPS measurement mode. '2' means two-dimensional measurement and '3' means three-dimensional measurement is in progress. tagNumber: 10

gpsProcessingMethod

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, nexif:gpsInfo, exif:gpsInfo, exif:gpsProcessingMethod
Subproperties --
Description tagNumber: 27 A character string recording the name of the method used for location finding. The first byte indicates the character code used, and this is followed by the name of the method.

gpsSatellites

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, nexif:gpsInfo, exif:gpsInfo, exif:gpsSatellites
Subproperties --
Description tagNumber: 8 The GPS satellites used for measurements. This tag can be used to describe the number of satellites, their ID number, angle of elevation, azimuth, SNR and other information in ASCII notation. The format is not specified. If the GPS receiver is incapable of taking measurements, value of the tag shall be set to NULL.

gpsSpeed

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, nexif:gpsInfo, exif:gpsInfo, exif:gpsSpeed
Subproperties --
Description The speed of GPS receiver movement. tagNumber: 13

gpsSpeedRef

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, nexif:gpsInfo, exif:gpsInfo, exif:gpsSpeedRef
Subproperties --
Description tagNumber: 12 The unit used to express the GPS receiver speed of movement. 'K' 'M' and 'N' represents kilometers per hour, miles per hour, and knots.

gpsStatus

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, nexif:gpsInfo, exif:gpsInfo, exif:gpsStatus
Subproperties --
Description tagNumber: 9 The status of the GPS receiver when the image is recorded. 'A' means measurement is in progress, and 'V' means the measurement is Interoperability.

gpsTimeStamp

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, nexif:gpsInfo, exif:gpsInfo, exif:gpsTimeStamp
Subproperties --
Description tagNumber: 7 The time as UTC (Coordinated Universal Time). TimeStamp is expressed as three RATIONAL values giving the hour, minute, and second.

gpsTrack

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, nexif:gpsInfo, exif:gpsInfo, exif:gpsTrack
Subproperties --
Description The direction of GPS receiver movement. The range of values is from 0.00 to 359.99. tagNumber: 15

gpsTrackRef

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, nexif:gpsInfo, exif:gpsInfo, exif:gpsTrackRef
Subproperties --
Description tagNumber: 14 The reference for giving the direction of GPS receiver movement. 'T' denotes true direction and 'M' is magnetic direction.

gpsVersionID

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, nexif:gpsInfo, exif:gpsInfo, exif:gpsVersionID, nexif:versionInfo, exif:versionInfo
Subproperties --
Description The version of GPSInfoIFD. The version is given as 2.2.0.0. This tag is mandatory when GPSInfo tag is present. tagNumber: 0

height

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties exif:height, exif:length, nexif:length
Subproperties nexif:imageLength, nexif:pixelYDimension, nexif:relatedImageLength
Description Height of an object

ifdPointer

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range nexif:Photo
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:ifdPointer
Subproperties nexif:exifIFDPointer, nexif:gpsInfoIFDPointer, nexif:interoperabilityIFDPointer, nexif:printImageMatchingIFDPointer
Description A tag that refers a child IFD

imageConfig

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:imageConfig
Subproperties nexif:componentsConfiguration, nexif:compressedBitsPerPixel, nexif:pixelXDimension, nexif:pixelYDimension
Description An attribute relating to Image Configuration

imageDataCharacter

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:imageDataCharacter
Subproperties nexif:colorSpace, nexif:primaryChromaticities, nexif:referenceBlackWhite, nexif:transferFunction, nexif:whitePoint, nexif:yCbCrCoefficients
Description An attribute relating to image data characteristics

imageDataStruct

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:imageDataStruct
Subproperties nexif:bitsPerSample, nexif:compression, nexif:imageLength, nexif:imageWidth, nexif:orientation, nexif:photometricInterpretation, nexif:planarConfiguration, nexif:resolutionUnit, nexif:samplesPerPixel, nexif:xResolution, nexif:yCbCrPositioning, nexif:yCbCrSubSampling, nexif:yResolution
Description An attribute relating to image data structure

imageDescription

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:imageDescription, nie:title, dc:title
Subproperties --
Description tagNumber: 270 A character string giving the title of the image. It may be a comment such as "1988 company picnic" or the like. Two-byte character codes cannot be used. When a 2-byte code is necessary, the Exif Private tag UserComment is to be used.

imageLength

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, nexif:height, exif:height, exif:imageDataStruct, nexif:imageDataStruct, exif:imageLength, exif:length, nexif:length
Subproperties --
Description tagNumber: 257 Image height. The number of rows of image data. In JPEG compressed data a JPEG marker is used.

imageUniqueID

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, nie:identifier, nao:identifier, dc:identifier, exif:imageUniqueID
Subproperties --
Description An identifier assigned uniquely to each image. It is recorded as an ASCII string equivalent to hexadecimal notation and 128-bit fixed length. tagNumber: 42016

imageWidth

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:imageDataStruct, nexif:imageDataStruct, exif:imageWidth, exif:length, nexif:length, exif:width, nexif:width
Subproperties --
Description tagNumber: 256 Image width. The number of columns of image data, equal to the number of pixels per row. In JPEG compressed data a JPEG marker is used instead of this tag.

interopInfo

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:interopInfo
Subproperties nexif:interoperabilityIndex, nexif:interoperabilityVersion, nexif:relatedImageFileFormat, nexif:relatedImageLength, nexif:relatedImageWidth
Description An attribute relating to Interoperability. Tags stored in Interoperability IFD may be defined dependently to each Interoperability rule.

interoperabilityIFDPointer

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range nexif:Photo
Superproperties nexif:exifAttribute, exif:exifAttribute, nexif:ifdPointer, exif:ifdPointer, exif:interoperability\_IFD\_Pointer
Subproperties --
Description A pointer to the Interoperability IFD, which is composed of tags storing the information to ensure the Interoperability tagNumber: 40965

interoperabilityIndex

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:interopInfo, nexif:interopInfo, exif:interoperabilityIndex
Subproperties --
Description Indicates the identification of the Interoperability rule. 'R98' = conforming to R98 file specification of Recommended Exif Interoperability Rules (ExifR98) or to DCF basic file stipulated by Design Rule for Camera File System. 'THM' = conforming to DCF thumbnail file stipulated by Design rule for Camera File System. tagNumber: 1

interoperabilityVersion

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:interopInfo, nexif:interopInfo, exif:interoperabilityVersion
Subproperties --
Description tagNumber: 2 Interoperability Version

isoSpeedRatings

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:isoSpeedRatings, exif:pictTaking, nexif:pictTaking
Subproperties --
Description Indicates the ISO Speed and ISO Latitude of the camera or input device as specified in ISO 12232. tagNumber: 34855

jpegInterchangeFormat

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:jpegInterchangeFormat, exif:recOffset, nexif:recOffset
Subproperties --
Description tagNumber: 513 The offset to the start byte (SOI) of JPEG compressed thumbnail data. This is not used for primary image JPEG data.

jpegInterchangeFormatLength

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:jpegInterchangeFormatLength, exif:recOffset, nexif:recOffset
Subproperties --
Description The number of bytes of JPEG compressed thumbnail data. This is not used for primary image JPEG data. tagNumber: 514

length

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties exif:length
Subproperties nexif:focalLength, nexif:focalLengthIn35mmFilm, nexif:height, nexif:imageLength, nexif:imageWidth, nexif:meter, nexif:mm, nexif:pixelXDimension, nexif:pixelYDimension, nexif:relatedImageLength, nexif:relatedImageWidth, nexif:subjectDistance, nexif:width
Description Length of an object. Could be a subProperty of other general schema.

lightSource

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:lightSource, exif:pictTaking, nexif:pictTaking
Subproperties --
Description tagNumber: 37384 Light source such as Daylight, Tungsten, Flash etc.

make

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:make
Subproperties --
Description Manufacturer of image input equipment tagNumber: 271

makerNote

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:makerNote, nexif:userInfo, exif:userInfo
Subproperties --
Description Manufacturer notes tagNumber: 37500

maxApertureValue

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:maxApertureValue, exif:pictTaking, nexif:pictTaking
Subproperties --
Description tagNumber: 37381 The smallest F number of the lens. The unit is the APEX value. Ordinarily it is given in the range of 00.00 to 99.99, but it is not limited to this range.

meter

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties exif:length, nexif:length, exif:meter
Subproperties nexif:subjectDistance
Description A length with unit of meter

meteringMode

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:meteringMode, exif:pictTaking, nexif:pictTaking
Subproperties --
Description Metering mode, such as CenterWeightedAverage, Spot, MultiSpot,Pattern, Partial etc. tagNumber: 37383

mm

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties exif:length, nexif:length, exif:mm
Subproperties nexif:focalLength
Description A length with unit of mm

model

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:model
Subproperties --
Description tagNumber: 272 Model of image input equipment

oecf

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:oecf, exif:pictTaking, nexif:pictTaking
Subproperties --
Description tagNumber: 34856 Indicates the Opto-Electric Conversion Function (OECF) specified in ISO 14524. OECF is the relationship between the camera optical input and the image values.

orientation

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:imageDataStruct, nexif:imageDataStruct, exif:orientation
Subproperties --
Description tagNumber: 274 The image orientation viewed in terms of rows and columns.

photometricInterpretation

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:imageDataStruct, nexif:imageDataStruct, exif:photometricInterpretation
Subproperties --
Description Pixel composition. In JPEG compressed data a JPEG marker is used instead of this tag. tagNumber: 262

pictTaking

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:pictTaking
Subproperties nexif:apertureValue, nexif:brightnessValue, nexif:cfaPattern, nexif:contrast, nexif:customRendered, nexif:deviceSettingDescription, nexif:digitalZoomRatio, nexif:exposureBiasValue, nexif:exposureIndex, nexif:exposureMode, nexif:exposureProgram, nexif:exposureTime, nexif:fNumber, nexif:fileSource, nexif:flash, nexif:flashEnergy, nexif:focalLength, nexif:focalLengthIn35mmFilm, nexif:focalPlaneResolutionUnit, nexif:focalPlaneXResolution, nexif:focalPlaneYResolution, nexif:gainControl, nexif:isoSpeedRatings, nexif:lightSource, nexif:maxApertureValue, nexif:meteringMode, nexif:oecf, nexif:saturation, nexif:sceneCaptureType, nexif:sceneType, nexif:sensingMethod, nexif:sharpness, nexif:shutterSpeedValue, nexif:spatialFrequencyResponse, nexif:spectralSensitivity, nexif:subjectArea, nexif:subjectDistance, nexif:subjectDistanceRange, nexif:subjectLocation, nexif:whiteBalance
Description An attribute relating to Picture-Taking Conditions

pimBrightness

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:pimBrightness, exif:pimInfo, nexif:pimInfo
Subproperties --
Description Brightness info for print image matching tagNumber: 10

pimColorBalance

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:pimColorBalance, exif:pimInfo, nexif:pimInfo
Subproperties --
Description tagNumber: 11 ColorBalance info for print image matching

pimContrast

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:pimContrast, exif:pimInfo, nexif:pimInfo
Subproperties --
Description tagNumber: 9 Contrast info for print image matching

pimInfo

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:pimInfo
Subproperties nexif:pimBrightness, nexif:pimColorBalance, nexif:pimContrast, nexif:pimSaturation, nexif:pimSharpness
Description An attribute relating to print image matching

pimSaturation

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:pimInfo, nexif:pimInfo, exif:pimSaturation
Subproperties --
Description tagNumber: 12 Saturation info for print image matching

pimSharpness

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:pimInfo, nexif:pimInfo, exif:pimSharpness
Subproperties --
Description Sharpness info for print image matching tagNumber: 13

pixelXDimension

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, nexif:imageConfig, exif:imageConfig, exif:length, nexif:length, exif:pixelXDimension, exif:width, nexif:width
Subproperties --
Description Information specific to compressed data. When a compressed file is recorded, the valid width of the meaningful image shall be recorded in this tag, whether or not there is padding data or a restart marker. This tag should not exist in an uncompressed file. tagNumber: 40962

pixelYDimension

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, nexif:height, exif:height, nexif:imageConfig, exif:imageConfig, exif:length, nexif:length, exif:pixelYDimension
Subproperties --
Description Information specific to compressed data. When a compressed file is recorded, the valid height of the meaningful image shall be recorded in this tag, whether or not there is padding data or a restart marker. This tag should not exist in an uncompressed file. Since data padding is unnecessary in the vertical direction, the number of lines recorded in this valid image height tag will in fact be the same as that recorded in the SOF. tagNumber: 40963

planarConfiguration

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:imageDataStruct, nexif:imageDataStruct, exif:planarConfiguration
Subproperties --
Description Indicates whether pixel components are recorded in chunky or planar format. In JPEG compressed files a JPEG marker is used instead of this tag. If this field does not exist, the TIFF default of 1 (chunky) is assumed. tagNumber: 284

primaryChromaticities

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, nexif:imageDataCharacter, exif:imageDataCharacter, exif:primaryChromaticities
Subproperties --
Description The chromaticity of the three primary colors of the image. Normally this tag is not necessary, since color space is specified in the color space information tag (ColorSpace). tagNumber: 319

printImageMatchingIFDPointer

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range nexif:Photo
Superproperties nexif:exifAttribute, exif:exifAttribute, nexif:ifdPointer, exif:ifdPointer, exif:printImageMatching\_IFD\_Pointer
Subproperties --
Description tagNumber: 50341 A pointer to the print image matching IFD

recOffset

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:recOffset
Subproperties nexif:jpegInterchangeFormat, nexif:jpegInterchangeFormatLength, nexif:rowsPerStrip, nexif:stripByteCounts, nexif:stripOffsets
Description An attribute relating to recording offset

referenceBlackWhite

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, nexif:imageDataCharacter, exif:imageDataCharacter, exif:referenceBlackWhite
Subproperties --
Description tagNumber: 532 The reference black point value and reference white point value. The color space is declared in a color space information tag, with the default being the value that gives the optimal image characteristics Interoperability these conditions.

relatedFile

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:relatedFile
Subproperties nexif:relatedSoundFile
Description Tag Relating to Related File Information

relatedImageFileFormat

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:interopInfo, nexif:interopInfo, exif:relatedImageFileFormat
Subproperties --
Description Related image file format tagNumber: 4096

relatedImageLength

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, nexif:height, exif:height, exif:interopInfo, nexif:interopInfo, exif:length, nexif:length, exif:relatedImageLength
Subproperties --
Description Related image length tagNumber: 4098

relatedImageWidth

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:interopInfo, nexif:interopInfo, exif:length, nexif:length, exif:relatedImageWidth, exif:width, nexif:width
Subproperties --
Description tagNumber: 4097 Related image width

relatedSoundFile

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:relatedFile, nexif:relatedFile, exif:relatedSoundFile
Subproperties --
Description Related audio file tagNumber: 40964

resolution

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties exif:resolution
Subproperties nexif:bitsPerSample, nexif:focalPlaneXResolution, nexif:focalPlaneYResolution, nexif:xResolution, nexif:yResolution
Description a rational number representing a resolution. Could be a subProperty of other general schema.

resolutionUnit

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:imageDataStruct, nexif:imageDataStruct, exif:resolutionUnit
Subproperties --
Description tagNumber: 296 The unit for measuring XResolution and YResolution. The same unit is used for both XResolution and YResolution. If the image resolution in unknown, 2 (inches) is designated.

rowsPerStrip

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:recOffset, nexif:recOffset, exif:rowsPerStrip
Subproperties --
Description tagNumber: 278 The number of rows per strip. This is the number of rows in the image of one strip when an image is divided into strips. With JPEG compressed data this designation is not needed and is omitted.

samplesPerPixel

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:imageDataStruct, nexif:imageDataStruct, exif:samplesPerPixel
Subproperties --
Description The number of components per pixel. Since this standard applies to RGB and YCbCr images, the value set for this tag is 3. In JPEG compressed data a JPEG marker is used instead of this tag. tagNumber: 277

saturation

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:pictTaking, nexif:pictTaking, exif:saturation
Subproperties --
Description The direction of saturation processing applied by the camera when the image was shot. tagNumber: 41993

sceneCaptureType

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:pictTaking, nexif:pictTaking, exif:sceneCaptureType
Subproperties --
Description tagNumber: 41990 The type of scene that was shot. It can also be used to record the mode in which the image was shot, such as Landscape, Portrait etc. Note that this differs from the scene type (SceneType) tag.

sceneType

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:pictTaking, nexif:pictTaking, exif:sceneType
Subproperties --
Description tagNumber: 41729 The type of scene. If a DSC recorded the image, this tag value shall always be set to 1, indicating that the image was directly photographed.

seconds

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties exif:seconds
Subproperties nexif:exposureTime
Description a mesurement of time length with unit of second

sensingMethod

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:pictTaking, nexif:pictTaking, exif:sensingMethod
Subproperties --
Description tagNumber: 41495 The image sensor type on the camera or input device, such as One-chip color area sensor etc.

sharpness

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:pictTaking, nexif:pictTaking, exif:sharpness
Subproperties --
Description tagNumber: 41994 The direction of sharpness processing applied by the camera when the image was shot.

shutterSpeedValue

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:pictTaking, nexif:pictTaking, exif:shutterSpeedValue
Subproperties --
Description tagNumber: 37377 Shutter speed. The unit is the APEX (Additive System of Photographic Exposure) setting

software

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:software
Subproperties --
Description tagNumber: 305 The name and version of the software or firmware of the camera or image input device used to generate the image.

spatialFrequencyResponse

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:pictTaking, nexif:pictTaking, exif:spatialFrequencyResponse
Subproperties --
Description This tag records the camera or input device spatial frequency table and SFR values in the direction of image width, image height, and diagonal direction, as specified in ISO 12233. tagNumber: 41484

spectralSensitivity

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:pictTaking, nexif:pictTaking, exif:spectralSensitivity
Subproperties --
Description Indicates the spectral sensitivity of each channel of the camera used. The tag value is an ASCII string compatible with the standard developed by the ASTM Technical committee. tagNumber: 34852

stripByteCounts

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:recOffset, nexif:recOffset, exif:stripByteCounts
Subproperties --
Description tagNumber: 279 The total number of bytes in each strip. With JPEG compressed data this designation is not needed and is omitted.

stripOffsets

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:recOffset, nexif:recOffset, exif:stripOffsets
Subproperties --
Description For each strip, the byte offset of that strip. With JPEG compressed data this designation is not needed and is omitted. tagNumber: 273

subSecTime

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties exif:dateAndOrTime, nexif:dateAndOrTime, nexif:exifAttribute, exif:exifAttribute, exif:subSecTime, nexif:subsecond, exif:subsecond
Subproperties --
Description tagNumber: 37520 DateTime subseconds

subSecTimeDigitized

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties exif:dateAndOrTime, nexif:dateAndOrTime, nexif:exifAttribute, exif:exifAttribute, exif:subSecTimeDigitized, nexif:subsecond, exif:subsecond
Subproperties --
Description tagNumber: 37522 DateTimeDigitized subseconds

subSecTimeOriginal

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties exif:dateAndOrTime, nexif:dateAndOrTime, nexif:exifAttribute, exif:exifAttribute, exif:subSecTimeOriginal, nexif:subsecond, exif:subsecond
Subproperties --
Description tagNumber: 37521 DateTimeOriginal subseconds

subjectArea

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:pictTaking, nexif:pictTaking, exif:subjectArea
Subproperties --
Description tagNumber: 37396 The location and area of the main subject in the overall scene.

subjectDistance

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:length, nexif:length, exif:meter, nexif:meter, exif:pictTaking, nexif:pictTaking, exif:subjectDistance
Subproperties --
Description tagNumber: 37382 The distance to the subject, given in meters. Note that if the numerator of the recorded value is FFFFFFFF.H, Infinity shall be indicated; and if the numerator is 0, Distance unknown shall be indicated.

subjectDistanceRange

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:pictTaking, nexif:pictTaking, exif:subjectDistanceRange
Subproperties --
Description The distance to the subject, such as Macro, Close View or Distant View. tagNumber: 41996

subjectLocation

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:pictTaking, nexif:pictTaking, exif:subjectLocation
Subproperties --
Description The location of the main subject in the scene. The value of this tag represents the pixel at the center of the main subject relative to the left edge, prior to rotation processing as per the Rotation tag. The first value indicates the X column number and second indicates the Y row number. tagNumber: 41492

subsecond

Type rdf:Property, rdfs:Resource
Domain --
Range --
Superproperties --
Subproperties nexif:subSecTime, nexif:subSecTimeDigitized, nexif:subSecTimeOriginal
Description

subseconds

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties exif:subseconds
Subproperties --
Description A tag used to record fractions of seconds for a date property

tagNumber

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties dc:identifier, exif:tag\_number
Subproperties nexif:tagid
Description The Exif tag number (for this schema definition)

tagid

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties dc:identifier, nexif:tagNumber, exif:tag\_number, exif:tagid
Subproperties --
Description The Exif tag number with context prefix, such as IFD type or maker name (for this schema definition)

transferFunction

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, nexif:imageDataCharacter, exif:imageDataCharacter, exif:transferFunction
Subproperties --
Description tagNumber: 301 A transfer function for the image, described in tabular style. Normally this tag is not necessary, since color space is specified in the color space information tag (ColorSpace).

unknown

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties exif:\_unknown
Subproperties --
Description An Exif tag whose meaning is not known

userComment

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:userComment, nexif:userInfo, exif:userInfo
Subproperties --
Description tagNumber: 37510 A tag for Exif users to write keywords or comments on the image besides those in ImageDescription, and without the character code limitations of the ImageDescription tag. The character code used in the UserComment tag is identified based on an ID code in a fixed 8-byte area at the start of the tag data area.

userInfo

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:userInfo
Subproperties nexif:makerNote, nexif:userComment
Description An attribute relating to User Information

versionInfo

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:versionInfo
Subproperties nexif:exifVersion, nexif:flashpixVersion, nexif:gpsVersionID
Description An attribute relating to Version

whiteBalance

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:pictTaking, nexif:pictTaking, exif:whiteBalance
Subproperties --
Description tagNumber: 41987 The white balance mode set when the image was shot.

whitePoint

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, nexif:imageDataCharacter, exif:imageDataCharacter, exif:whitePoint
Subproperties --
Description The chromaticity of the white point of the image. Normally this tag is not necessary, since color space is specified in the color space information tag (ColorSpace). tagNumber: 318

width

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties exif:length, nexif:length, exif:width
Subproperties nexif:imageWidth, nexif:pixelXDimension, nexif:relatedImageWidth
Description Width of an object

xResolution

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:imageDataStruct, nexif:imageDataStruct, nexif:resolution, exif:resolution, exif:xResolution
Subproperties --
Description The number of pixels per ResolutionUnit in the ImageWidth direction. When the image resolution is unknown, 72 [dpi] is designated. tagNumber: 282

yCbCrCoefficients

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, nexif:imageDataCharacter, exif:imageDataCharacter, exif:yCbCrCoefficients
Subproperties --
Description tagNumber: 529 The matrix coefficients for transformation from RGB to YCbCr image data.

yCbCrPositioning

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:imageDataStruct, nexif:imageDataStruct, exif:yCbCrPositioning
Subproperties --
Description The position of chrominance components in relation to the luminance component. This field is designated only for JPEG compressed data or uncompressed YCbCr data. tagNumber: 531

yCbCrSubSampling

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:imageDataStruct, nexif:imageDataStruct, exif:yCbCrSubSampling
Subproperties --
Description The sampling ratio of chrominance components in relation to the luminance component. In JPEG compressed data a JPEG marker is used instead of this tag. tagNumber: 530

yResolution

Type rdf:Property, rdfs:Resource
Domain nexif:Photo
Range xsd:string
Superproperties nexif:exifAttribute, exif:exifAttribute, exif:imageDataStruct, nexif:imageDataStruct, nexif:resolution, exif:resolution, exif:yResolution
Subproperties --
Description tagNumber: 283 The number of pixels per ResolutionUnit in the ImageLength direction. The same value as XResolution is designated.