• <GetStart>
  • CSPro User's Guide
    • The CSPro System
    • Data Dictionary Module
    • The CSPro Language
    • Data Entry Module
    • Batch Editing Applications
    • Tabulation Applications
    • Data Sources
    • CSPro Statements and Functions
      • Statement Format Symbols
      • Alphabetical List of Functions and Statements
      • List of Reserved Words
      • Deprecated Features
      • Declaration Statements
      • Numeric Values
      • String Values
      • Symbol Functions
      • Item Functions
      • Array Object
      • Audio Object
      • Barcode and QR Codes
      • Case Object
      • Document Object
      • File Object
      • Freq Object
      • Geometry Object
      • HashMap Object
      • Image Object
        • Image Statement
        • Image.load Function
        • Image.save Function
        • Image.width Function
        • Image.height Function
        • Image.getExif Function
        • EXIF Tags
        • Image.resample Function
        • Image.createQRCode Function
        • Image.takePhoto Function
        • Image.captureSignature Function
        • Image.view Function
        • Image.clear Function
        • JSON Representation
      • List Object
      • Map Object
      • Path
      • Pff Object
      • StringWriter Object
      • SystemApp Object
      • ValueSet Object
      • Program Control Statements
      • Assignment Statements
      • Data Entry Statements and Functions
      • Batch Edit Statements
      • Numeric Functions
      • String Functions
      • Multiple Occurrence Functions
      • General Functions
      • Date and Time Functions
      • External File Functions
      • Synchronization Functions
    • Text Templates
    • Templated Reporting System
    • HTML, Markdown, and JavaScript Integration
    • Action Invoker
    • Appendix
  • <CSEntry>
  • <CSBatch>
  • <CSTab>
  • <DataManager>
  • <TextView>
  • <TblView>
  • <CSFreq>
  • <CSDeploy>
  • <CSPack>
  • <CSDiff>
  • <CSConcat>
  • <Excel2CSPro>
  • <CSExport>
  • <CSIndex>
  • <CSReFmt>
  • <CSSort>
  • <ParadataConcat>
  • <ParadataViewer>
  • <CSCode>
  • <CSDocument>
  • <CSView>
  • <CSWeb>

EXIF Tags

The following table lists the names of EXIF tags that are supported by the Image.getExif function. The description comes from libexif, the library that CSPro uses to parse EXIF data. Following the description is a list of the Image File Directory (IFD) sets that may contain a value corresponding to the tag name.
Tag NameDescription
ApertureValueThe lens aperture. The unit is the APEX value.
IFDs: EXIF
 
ArtistThis tag records the name of the camera owner, photographer or image creator. The detailed format is not specified, but it is recommended that the information be written as in the example below for ease of Interoperability. When the field is left blank, it is treated as unknown.
IFDs: 0, 1
 
BatteryLevelIFDs: 0, 1, EXIF, GPS, Interoperability
 
BitsPerSampleThe 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.
IFDs: 0, 1
 
BodySerialNumberThis tag indicates the serial number of the body of the camera
IFDs: EXIF
 
BrightnessValueThe value of brightness. The unit is the APEX value. Ordinarily it is given in the range of -99.99 to 99.99.
IFDs: EXIF
 
CFAPatternIndicates 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.
IFDs: EXIF
 
CFAPatternIndicates 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.
IFDs: 0, 1, EXIF, GPS, Interoperability
 
CFARepeatPatternDimIFDs: 0, 1, EXIF, GPS, Interoperability
 
CameraOwnerNameThis tag indicates the name of the camera owner, photographer or image creator.
IFDs: EXIF
 
ColorSpaceThe color space information tag 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. If a color space other than sRGB is used, Uncalibrated (=FFFF.H) is set. Image data recorded as Uncalibrated can be treated as sRGB when it is converted to FlashPix.
IFDs: EXIF
 
ComponentsConfigurationInformation 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.
IFDs: EXIF
 
CompositeImageThis tag indicates whether this image was composed from multiple images
IFDs: EXIF
 
CompressedBitsPerPixelInformation specific to compressed data. The compression mode used for a compressed image is indicated in unit bits per pixel.
IFDs: EXIF
 
CompressionThe 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.
IFDs: 0, 1
 
ContrastThis tag indicates the direction of contrast processing applied by the camera when the image was shot.
IFDs: EXIF
 
CopyrightCopyright 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. The Interoperability copyright statement including date and rights should be written in this field; e.g., "Copyright, John Smith, 19xx. All rights reserved.". In this standard the field records both the photographer and editor copyrights, with each recorded in a separate part of the statement. When there is a clear distinction between the photographer and editor copyrights, these are to be written in the order of photographer followed by editor copyright, separated by NULL (in this case, since the statement also ends with a NULL, there are two NULL codes) (see example 1). When only the photographer is given, it is terminated by one NULL code (see example 2). When only the editor copyright is given, the photographer copyright part consists of one space followed by a terminating NULL code, then the editor copyright is given (see example 3). When the field is left blank, it is treated as unknown.
IFDs: 0, 1
 
CustomRenderedThis tag indicates 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.
IFDs: EXIF
 
DateTimeThe date and time of image creation. In this standard (EXIF-2.1) it is the date and time the file was changed.
IFDs: 0, 1
 
DateTimeDigitizedThe date and time when the image was stored as digital data.
IFDs: EXIF
 
DateTimeOriginalThe date and time when the original image data was generated. For a digital still camera the date and time the picture was taken are recorded.
IFDs: EXIF
 
DeviceSettingDescriptionThis tag indicates 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.
IFDs: EXIF
 
DigitalZoomRatioThis tag indicates 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.
IFDs: EXIF
 
DocumentNameIFDs: 0, 1, EXIF, GPS, Interoperability
 
ExifVersionThe version of this standard supported. Nonexistence of this field is taken to mean nonconformance to the standard.
IFDs: EXIF
 
ExposureBiasValueThe exposure bias. The units is the APEX value. Ordinarily it is given in the range of -99.99 to 99.99.
IFDs: EXIF
 
ExposureIndexIndicates the exposure index selected on the camera or input device at the time the image is captured.
IFDs: EXIF
 
ExposureModeThis tag indicates 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.
IFDs: EXIF
 
ExposureProgramThe class of the program used by the camera to set exposure when the picture is taken.
IFDs: EXIF
 
ExposureTimeExposure time, given in seconds (sec).
IFDs: EXIF
 
FNumberThe F number.
IFDs: EXIF
 
FileSourceIndicates the image source. If a DSC recorded the image, the tag value of this tag always be set to 3, indicating that the image was recorded on a DSC.
IFDs: EXIF
 
FillOrderIFDs: 0, 1, EXIF, GPS, Interoperability
 
FlashThis tag is recorded when an image is taken using a strobe light (flash).
IFDs: EXIF
 
FlashEnergyIndicates the strobe energy at the time the image is captured, as measured in Beam Candle Power Seconds (BCPS).
IFDs: EXIF
 
FlashpixVersionThe FlashPix format version supported by a FPXR file.
IFDs: EXIF
 
FocalLengthThe actual focal length of the lens, in mm. Conversion is not made to the focal length of a 35 mm film camera.
IFDs: EXIF
 
FocalLengthIn35mmFilmThis tag indicates 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.
IFDs: EXIF
 
FocalPlaneResolutionUnitIndicates the unit for measuring <FocalPlaneXResolution> and <FocalPlaneYResolution>. This value is the same as the <ResolutionUnit>.
IFDs: EXIF
 
FocalPlaneXResolutionIndicates the number of pixels in the image width (X) direction per <FocalPlaneResolutionUnit> on the camera focal plane.
IFDs: EXIF
 
FocalPlaneYResolutionIndicates the number of pixels in the image height (V) direction per <FocalPlaneResolutionUnit> on the camera focal plane.
IFDs: EXIF
 
GPSAltitudeIndicates the altitude based on the reference in GPSAltitudeRef. Altitude is expressed as one RATIONAL value. The reference unit is meters.
IFDs: GPS
 
GPSAltitudeRefIndicates 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. Note that this tag is BYTE type, unlike other reference tags.
IFDs: GPS
 
GPSAreaInformationA 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. Since the Type is not ASCII, NULL termination is not necessary.
IFDs: GPS
 
GPSDOPIndicates the GPS DOP (data degree of precision). An HDOP value is written during two-dimensional measurement, and PDOP during three-dimensional measurement.
IFDs: GPS
 
GPSDateStampA character string recording date and time information relative to UTC (Coordinated Universal Time). The format is "YYYY:MM:DD". The length of the string is 11 bytes including NULL.
IFDs: GPS
 
GPSDestBearingIndicates the bearing to the destination point. The range of values is from 0.00 to 359.99.
IFDs: GPS
 
GPSDestBearingRefIndicates the reference used for giving the bearing to the destination point. 'T' denotes true direction and 'M' is magnetic direction.
IFDs: GPS
 
GPSDestDistanceIndicates the distance to the destination point.
IFDs: GPS
 
GPSDestDistanceRefIndicates the unit used to express the distance to the destination point. 'K', 'M' and 'N' represent kilometers, miles and nautical miles.
IFDs: GPS
 
GPSDestLatitudeIndicates the latitude of the destination point. The latitude is expressed as three RATIONAL values giving the degrees, minutes, and seconds, respectively. If latitude is expressed as degrees, minutes and seconds, a typical format would be dd/1,mm/1,ss/1. When degrees and minutes are used and, for example, fractions of minutes are given up to two decimal places, the format would be dd/1,mmmm/100,0/1.
IFDs: GPS
 
GPSDestLatitudeRefIndicates whether the latitude of the destination point is north or south latitude. The ASCII value 'N' indicates north latitude, and 'S' is south latitude.
IFDs: GPS
 
GPSDestLongitudeIndicates the longitude of the destination point. The longitude is expressed as three RATIONAL values giving the degrees, minutes, and seconds, respectively. If longitude is expressed as degrees, minutes and seconds, a typical format would be ddd/1,mm/1,ss/1. When degrees and minutes are used and, for example, fractions of minutes are given up to two decimal places, the format would be ddd/1,mmmm/100,0/1.
IFDs: GPS
 
GPSDestLongitudeRefIndicates whether the longitude of the destination point is east or west longitude. ASCII 'E' indicates east longitude, and 'W' is west longitude.
IFDs: GPS
 
GPSDifferentialIndicates whether differential correction is applied to the GPS receiver.
IFDs: GPS
 
GPSHPositioningErrorIndicates the horizontal positioning errors in meters. This is expressed as one RATIONAL value.
IFDs: GPS
 
GPSImgDirectionIndicates the direction of the image when it was captured. The range of values is from 0.00 to 359.99.
IFDs: GPS
 
GPSImgDirectionRefIndicates the reference for giving the direction of the image when it is captured. 'T' denotes true direction and 'M' is magnetic direction.
IFDs: GPS
 
GPSLatitudeIndicates the latitude. The latitude is expressed as three RATIONAL values giving the degrees, minutes, and seconds, respectively. When degrees, minutes and seconds are expressed, the format is dd/1,mm/1,ss/1. When degrees and minutes are used and, for example, fractions of minutes are given up to two decimal places, the format is dd/1,mmmm/100,0/1.
IFDs: GPS
 
GPSLatitudeRefIndicates whether the latitude is north or south latitude. The ASCII value 'N' indicates north latitude, and 'S' is south latitude.
IFDs: GPS
 
GPSLongitudeIndicates the longitude. The longitude is expressed as three RATIONAL values giving the degrees, minutes, and seconds, respectively. When degrees, minutes and seconds are expressed, the format is ddd/1,mm/1,ss/1. When degrees and minutes are used and, for example, fractions of minutes are given up to two decimal places, the format is ddd/1,mmmm/100,0/1.
IFDs: GPS
 
GPSLongitudeRefIndicates whether the longitude is east or west longitude. ASCII 'E' indicates east longitude, and 'W' is west longitude.
IFDs: GPS
 
GPSMapDatumIndicates 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.
IFDs: GPS
 
GPSMeasureModeIndicates the GPS measurement mode. '2' means two-dimensional measurement and '3' means three-dimensional measurement is in progress.
IFDs: GPS
 
GPSProcessingMethodA 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. Since the Type is not ASCII, NULL termination is not necessary.
IFDs: GPS
 
GPSSatellitesIndicates 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.
IFDs: GPS
 
GPSSpeedIndicates the speed of GPS receiver movement.
IFDs: GPS
 
GPSSpeedRefIndicates the unit used to express the GPS receiver speed of movement. 'K', 'M' and 'N' represent kilometers per hour, miles per hour, and knots.
IFDs: GPS
 
GPSStatusIndicates the status of the GPS receiver when the image is recorded. 'A' means measurement is in progress, and 'V' means the measurement is Interoperability.
IFDs: GPS
 
GPSTimeStampIndicates the time as UTC (Coordinated Universal Time). TimeStamp is expressed as three RATIONAL values giving the hour, minute, and second.
IFDs: GPS
 
GPSTrackIndicates the direction of GPS receiver movement. The range of values is from 0.00 to 359.99.
IFDs: GPS
 
GPSTrackRefIndicates the reference for giving the direction of GPS receiver movement. 'T' denotes true direction and 'M' is magnetic direction.
IFDs: GPS
 
GPSVersionIDIndicates the version of <GPSInfoIFD>. The version is given as 2.0.0.0. This tag is mandatory when <GPSInfo> tag is present. (Note: The <GPSVersionID> tag is given in bytes, unlike the <ExifVersion> tag. When the version is 2.0.0.0, the tag value is 02000000.H).
IFDs: GPS
 
GainControlThis tag indicates the degree of overall image gain adjustment.
IFDs: EXIF
 
GammaIndicates the value of coefficient gamma.
IFDs: EXIF
 
IPTC/NAAIFDs: 0, 1, EXIF, GPS, Interoperability
 
ISOSpeedIFDs: EXIF
 
ISOSpeedLatitudeyyyIFDs: EXIF
 
ISOSpeedLatitudezzzIFDs: EXIF
 
ISOSpeedRatingsIndicates the ISO Speed and ISO Latitude of the camera or input device as specified in ISO 12232.
IFDs: EXIF
 
ImageDescriptionA character string giving the title of the image. It may be a comment such as "1988 company picnic" or the like. Two-bytes character codes cannot be used. When a 2-bytes code is necessary, the Exif Private tag <UserComment> is to be used.
IFDs: 0, 1
 
ImageLengthThe number of rows of image data. In JPEG compressed data a JPEG marker is used instead of this tag.
IFDs: 0, 1
 
ImageResourcesIFDs: 0, 1, EXIF, GPS, Interoperability
 
ImageUniqueIDThis tag indicates an identifier assigned uniquely to each image. It is recorded as an ASCII string equivalent to hexadecimal notation and 128-bit fixed length.
IFDs: EXIF
 
ImageWidthThe 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.
IFDs: 0, 1
 
InterColorProfileIFDs: 0, 1, EXIF, GPS, Interoperability
 
InteroperabilityIndexIndicates the identification of the Interoperability rule. Use "R98" for stating ExifR98 Rules. Four bytes used including the termination code (NULL). see the separate volume of Recommended Exif Interoperability Rules (ExifR98) for other tags used for ExifR98.
IFDs: Interoperability
 
InteroperabilityVersionIFDs: Interoperability
 
JPEGInterchangeFormatThe offset to the start byte (SOI) of JPEG compressed thumbnail data. This is not used for primary image JPEG data.
IFDs: 1
 
JPEGInterchangeFormatLengthThe number of bytes of JPEG compressed thumbnail data. This is not used for primary image JPEG data. JPEG thumbnails are not divided but are recorded as a continuous JPEG bitstream from SOI to EOI. Appn and COM markers should not be recorded. Compressed thumbnails must be recorded in no more than 64 Kbytes, including all other data to be recorded in APP1.
IFDs: 1
 
JPEGProcIFDs: 0, 1, EXIF, GPS, Interoperability
 
LensMakeThis tag indicates the lens manufacturer.
IFDs: EXIF
 
LensModelThis tag indicates the lens' model name and model number.
IFDs: EXIF
 
LensSerialNumberThis tag indicates the serial number of the interchangeable lens.
IFDs: EXIF
 
LensSpecificationThis tag indicates minimum focal length, maximum focal length, minimum F number in the minimum focal length, and minimum F number in the maximum focal length.
IFDs: EXIF
 
LightSourceThe kind of light source.
IFDs: EXIF
 
MakeThe manufacturer of the recording equipment. This is the manufacturer of the DSC, scanner, video digitizer or other equipment that generated the image. When the field is left blank, it is treated as unknown.
IFDs: 0, 1
 
MakerNoteA tag for manufacturers of Exif writers to record any desired information. The contents are up to the manufacturer.
IFDs: EXIF
 
MaxApertureValueThe 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.
IFDs: EXIF
 
MeteringModeThe metering mode.
IFDs: EXIF
 
ModelThe model name or model number of the equipment. This is the model name or number of the DSC, scanner, video digitizer or other equipment that generated the image. When the field is left blank, it is treated as unknown.
IFDs: 0, 1
 
NewSubfileTypeA general indication of the kind of data contained in this subfile.
IFDs: 0, 1, EXIF, GPS, Interoperability
 
OECFIndicates the Opto-Electronic Conversion Function (OECF) specified in ISO 14524. <OECF> is the relationship between the camera optical input and the image values.
IFDs: EXIF
 
OffsetTimeA tag used to record the offset from UTC (the time difference from Universal Time Coordinated including daylight saving time) of the time of DateTime tag. The format when recording the offset is "+|-HH:MM". The part of "+|-" shall be recorded as "+" or "-". When the offset are unknown, all the character spaces except colons (":")should be filled with blank characters, or else the Interoperability field should be filled with blank characters. The character string length is 7 Bytes including NULL for termination. When the field is left blank, it is treated as unknown.
IFDs: EXIF
 
OffsetTimeDigitizedA tag used to record the offset from UTC (the time difference from Universal Time Coordinated including daylight saving time) of the time of DateTimeDigitized tag. The format when recording the offset is "+|-HH:MM". The part of "+|-" shall be recorded as "+" or "-". When the offset are unknown, all the character spaces except colons (":")should be filled with blank characters, or else the Interoperability field should be filled with blank characters. The character string length is 7 Bytes including NULL for termination. When the field is left blank, it is treated as unknown.
IFDs: EXIF
 
OffsetTimeOriginalA tag used to record the offset from UTC (the time difference from Universal Time Coordinated including daylight saving time) of the time of DateTimeOriginal tag. The format when recording the offset is "+|-HH:MM". The part of "+|-" shall be recorded as "+" or "-". When the offset are unknown, all the character spaces except colons (":")should be filled with blank characters, or else the Interoperability field should be filled with blank characters. The character string length is 7 Bytes including NULL for termination. When the field is left blank, it is treated as unknown.
IFDs: EXIF
 
OrientationThe image orientation viewed in terms of rows and columns.
IFDs: 0, 1
 
PaddingThis tag reserves space that can be reclaimed later when additional metadata are added. New metadata can be written in place by replacing this tag with a smaller data element and using the reclaimed space to store the new or expanded metadata tags.
IFDs: 0, EXIF
 
PhotometricInterpretationThe pixel composition. In JPEG compressed data a JPEG marker is used instead of this tag.
IFDs: 0, 1
 
PixelXDimensionInformation specific to compressed data. When a compressed file is recorded, the valid width of the meaningful image must 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.
IFDs: EXIF
 
PixelYDimensionInformation specific to compressed data. When a compressed file is recorded, the valid height of the meaningful image must 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.
IFDs: EXIF
 
PlanarConfigurationIndicates whether pixel components are recorded in a 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.
IFDs: 0, 1
 
PrimaryChromaticitiesThe 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>).
IFDs: 0, 1
 
PrintImageMatchingRelated to Epson's PRINT Image Matching technology
IFDs: 0, 1, EXIF, GPS, Interoperability
 
RecommendedExposureIndexIFDs: EXIF
 
ReferenceBlackWhiteThe reference black point value and reference white point value. No defaults are given in TIFF, but the values below are given as defaults here. 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.
IFDs: 0, 1
 
RelatedImageFileFormatIFDs: 0, 1, EXIF, GPS, Interoperability
 
RelatedImageLengthIFDs: 0, 1, EXIF, GPS, Interoperability
 
RelatedImageWidthIFDs: 0, 1, EXIF, GPS, Interoperability
 
RelatedSoundFileThis tag is used to record the name of an audio file related to the image data. The only relational information recorded here is the Exif audio file name and extension (an ASCII string consisting of 8 characters + '.' + 3 characters). The path is not recorded. Stipulations on audio and file naming conventions are defined in the specification. When using this tag, audio files must be recorded in conformance to the Exif audio format. Writers are also allowed to store the data such as Audio within APP2 as FlashPix extension stream data. The mapping of Exif image files and audio files is done in any of three ways, [1], [2] and [3]. If multiple files are mapped to one file as in [2] or [3], the above format is used to record just one audio file name. If there are multiple audio files, the first recorded file is given. In the case of [3], for example, for the Exif image file "DSC00001.JPG" only "SND00001.WAV" is given as the related Exif audio file. When there are three Exif audio files "SND00001.WAV", "SND00002.WAV" and "SND00003.WAV", the Exif image file name for each of them, "DSC00001.JPG", is indicated. By combining multiple relational information, a variety of playback possibilities can be supported. The method of using relational information is left to the implementation on the playback side. Since this information is an ASCII character string, it is terminated by NULL. When this tag is used to map audio files, the relation of the audio file to image data must also be indicated on the audio file end.
IFDs: EXIF
 
ResolutionUnitThe unit for measuring <XResolution> and <YResolution>. The same unit is used for both <XResolution> and <YResolution>. If the image resolution is unknown, 2 (inches) is designated.
IFDs: 0, 1
 
RowsPerStripThe 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. See also <StripOffsets> and <StripByteCounts>.
IFDs: 0, 1
 
SamplesPerPixelThe 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.
IFDs: 0, 1
 
SaturationThis tag indicates the direction of saturation processing applied by the camera when the image was shot.
IFDs: EXIF
 
SceneCaptureTypeThis tag indicates the type of scene that was shot. It can also be used to record the mode in which the image was shot. Note that this differs from the scene type <SceneType> tag.
IFDs: EXIF
 
SceneTypeIndicates the type of scene. If a DSC recorded the image, this tag value must always be set to 1, indicating that the image was directly photographed.
IFDs: EXIF
 
SensingMethodIndicates the image sensor type on the camera or input device.
IFDs: EXIF
 
SensitivityTypeThe SensitivityType tag indicates which one of the parameters of ISO12232 is the PhotographicSensitivity tag. Although it is an optional tag, it should be recorded when a PhotographicSensitivity tag is recorded. Value = 4, 5, 6, or 7 may be used in case that the values of plural parameters are the same.
IFDs: EXIF
 
SharpnessThis tag indicates the direction of sharpness processing applied by the camera when the image was shot.
IFDs: EXIF
 
ShutterSpeedValueShutter speed. The unit is the APEX (Additive System of Photographic Exposure) setting.
IFDs: EXIF
 
SoftwareThis tag records the name and version of the software or firmware of the camera or image input device used to generate the image. The detailed format is not specified, but it is recommended that the example shown below be followed. When the field is left blank, it is treated as unknown.
IFDs: 0, 1
 
SourceExposureTimesOfCompositeImageThis tag indicates the exposure times of the source images of this image
IFDs: EXIF
 
SourceImageNumberOfCompositeImageThis tag indicates how many images are included and used in the composition of this image
IFDs: EXIF
 
SpatialFrequencyResponseThis 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.
IFDs: EXIF
 
SpectralSensitivityIndicates 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.
IFDs: EXIF
 
StandardOutputSensitivityIFDs: EXIF
 
StripByteCountsThe total number of bytes in each strip. With JPEG compressed data this designation is not needed and is omitted.
IFDs: 0, 1
 
StripOffsetsFor each strip, the byte offset of that strip. It is recommended that this be selected so the number of strip bytes does not exceed 64 Kbytes. With JPEG compressed data this designation is not needed and is omitted. See also <RowsPerStrip> and <StripByteCounts>.
IFDs: 0, 1
 
SubIFDsDefined by Adobe Corporation to enable TIFF Trees within a TIFF file.
IFDs: 0, 1, EXIF, GPS, Interoperability
 
SubSecTimeDigitizedA tag used to record fractions of seconds for the <DateTimeDigitized> tag.
IFDs: EXIF
 
SubSecTimeOriginalA tag used to record fractions of seconds for the <DateTimeOriginal> tag.
IFDs: EXIF
 
SubjectAreaThis tag indicates the location and area of the main subject in the overall scene.
IFDs: EXIF
 
SubjectDistanceThe distance to the subject, given in meters.
IFDs: EXIF
 
SubjectDistanceRangeThis tag indicates the distance to the subject.
IFDs: EXIF
 
SubjectLocationIndicates 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 the second indicates the Y row number.
IFDs: EXIF
 
SubsecTimeA tag used to record fractions of seconds for the <DateTime> tag.
IFDs: EXIF
 
TIFF/EPStandardIDIFDs: 0, 1, EXIF, GPS, Interoperability
 
TimeZoneOffsetEncodes time zone of camera clock relative to GMT.
IFDs: 0, 1, EXIF, GPS, Interoperability
 
TransferFunctionA 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>).
IFDs: 0, 1
 
TransferRangeIFDs: 0, 1, EXIF, GPS, Interoperability
 
UserCommentA 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. The unused portion of the area is padded with NULL ("00.h"). ID codes are assigned by means of registration. The designation method and references for each character code are defined in the specification. The value of CountN is determined based on the 8 bytes in the character code area and the number of bytes in the user comment part. Since the TYPE is not ASCII, NULL termination is not necessary. The ID code for the <UserComment> area may be a Defined code such as JIS or ASCII, or may be Undefined. The Undefined name is UndefinedText, and the ID code is filled with 8 bytes of all "NULL" ("00.H"). An Exif reader that reads the <UserComment> tag must have a function for determining the ID code. This function is not required in Exif readers that do not use the <UserComment> tag. When a <UserComment> area is set aside, it is recommended that the ID code be ASCII and that the following user comment part be filled with blank characters [20.H].
IFDs: EXIF
 
WhiteBalanceThis tag indicates the white balance mode set when the image was shot.
IFDs: EXIF
 
WhitePointThe 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>).
IFDs: 0, 1
 
XMLPacketXMP Metadata
IFDs: 0, 1, EXIF, GPS, Interoperability
 
XPAuthorA character string containing the name of the image creator, encoded in UTF-16LE.
IFDs: 0
 
XPCommentA character string containing a comment about the image, encoded in UTF-16LE.
IFDs: 0
 
XPKeywordsA character string containing key words describing the image, encoded in UTF-16LE.
IFDs: 0
 
XPSubjectA character string giving the image subject, encoded in UTF-16LE.
IFDs: 0
 
XPTitleA character string giving the title of the image, encoded in UTF-16LE.
IFDs: 0
 
XResolutionThe number of pixels per <ResolutionUnit> in the <ImageWidth> direction. When the image resolution is unknown, 72 [dpi] is designated.
IFDs: 0, 1
 
YCbCrCoefficientsThe matrix coefficients for transformation from RGB to YCbCr image data. No default is given in TIFF; but here the value given in "Color Space Guidelines", is used as the default. The color space is declared in a color space information tag, with the default being the value that gives the optimal image characteristics Interoperability this condition.
IFDs: 0, 1
 
YCbCrPositioningThe position of chrominance components in relation to the luminance component. This field is designated only for JPEG compressed data or uncompressed YCbCr data. The TIFF default is 1 (centered); but when Y:Cb:Cr = 4:2:2 it is recommended in this standard that 2 (co-sited) be used to record data, in order to improve the image quality when viewed on TV systems. When this field does not exist, the reader shall assume the TIFF default. In the case of Y:Cb:Cr = 4:2:0, the TIFF default (centered) is recommended. If the reader does not have the capability of supporting both kinds of <YCbCrPositioning>, it shall follow the TIFF default regardless of the value in this field. It is preferable that readers be able to support both centered and co-sited positioning.
IFDs: 0, 1
 
YCbCrSubSamplingThe sampling ratio of chrominance components in relation to the luminance component. In JPEG compressed data a JPEG marker is used instead of this tag.
IFDs: 0, 1
 
YResolutionThe number of pixels per <ResolutionUnit> in the <ImageLength> direction. The same value as <XResolution> is designated.
IFDs: 0, 1
See also: Image.getExif Function