The following list gives descriptions of the property items supported by Microsoft Windows GDI+. The descriptions are brief and general so that they apply to a variety of image file formats. For a detailed description of how a property item is used by a particular file format, see the specification for that file format. For links to several file specifications and other documents that describe metadata in detail, see Image File Format Specifications.

The Exchangeable Image File (EXIF) format is a Japan Electronic Industry Development Association (JEIDA) standard, revised June 1998 as version 2.1. Portions of the EXIF specification are used with permission of JEIDA.

PropertyTagGpsVer

Version of the Global Positioning Systems (GPS) IFD, given as 2.0.0.0. This tag is mandatory when the PropertyTagGpsIFD tag is present. When the version is 2.0.0.0, the tag value is 0x02000000.

PropertyTagGpsLatitudeRef

Null-terminated character string that specifies whether the latitude is north or south. N specifies north latitude, and S specifies south latitude.

PropertyTagGpsLatitude

Latitude. 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.

PropertyTagGpsLongitudeRef

Null-terminated character string that specifies whether the longitude is east or west longitude. E specifies east longitude, and W specifies west longitude.

PropertyTagGpsLongitude

Longitude. 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.

PropertyTagGpsAltitudeRef

Reference altitude, in meters.

PropertyTagGpsAltitude

Altitude, in meters, based on the reference altitude specified by PropertyTagGpsAltitudeRef.

PropertyTagGpsGpsTime

Time as coordinated universal time (UTC). The value is expressed as three rational numbers that give the hour, minute, and second.

PropertyTagGpsGpsSatellites

Null-terminated character string that specifies the GPS satellites used for measurements. This tag can be used to specify the ID number, angle of elevation, azimuth, SNR, and other information about each satellite. The format is not specified. If the GPS receiver is incapable of taking measurements, the value of the tag must be set to NULL.

PropertyTagGpsGpsStatus

Null-terminated character string that specifies the status of the GPS receiver when the image is recorded. A means measurement is in progress, and V means the measurement is Interoperability.

PropertyTagGpsGpsMeasureMode

Null-terminated character string that specifies the GPS measurement mode. 2 specifies 2-D measurement, and 3 specifies 3-D measurement.

PropertyTagGpsGpsDop

GPS DOP (data degree of precision). An HDOP value is written during 2-D measurement, and a PDOP value is written during 3-D measurement.

PropertyTagGpsSpeedRef

Null-terminated character string that specifies the unit used to express the GPS receiver speed of movement. K, M, and N represent kilometers per hour, miles per hour, and knots respectively.

PropertyTagGpsSpeed

Speed of the GPS receiver movement.

PropertyTagGpsTrackRef

Null-terminated character string that specifies the reference for giving the direction of GPS receiver movement. T specifies true direction, and M specifies magnetic direction.

PropertyTagGpsTrack

Direction of GPS receiver movement. The range of values is from 0.00 to 359.99.

PropertyTagGpsImgDirRef

Null-terminated character string that specifies the reference for the direction of the image when it is captured. T specifies true direction, and M specifies magnetic direction.

PropertyTagGpsImgDir

Direction of the image when it was captured. The range of values is from 0.00 to 359.99.

PropertyTagGpsMapDatum

Null-terminated character string that specifies 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.

PropertyTagGpsDestLatRef

Null-terminated character string that specifies whether the latitude of the destination point is north or south latitude. N specifies north latitude, and S specifies south latitude.

PropertyTagGpsDestLat

Latitude of the destination point. 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.

PropertyTagGpsDestLongRef

Null-terminated character string that specifies whether the longitude of the destination point is east or west longitude. E specifies east longitude, and W specifies west longitude.

PropertyTagGpsDestLong

Longitude of the destination point. 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.

PropertyTagGpsDestBearRef

Null-terminated character string that specifies the reference used for giving the bearing to the destination point. T specifies true direction, and M specifies magnetic direction.

PropertyTagGpsDestBear

Bearing to the destination point. The range of values is from 0.00 to 359.99.

PropertyTagGpsDestDistRef

Null-terminated character string that specifies the unit used to express the distance to the destination point. K, M, and N represent kilometers, miles, and knots respectively.

PropertyTagGpsDestDist

Distance to the destination point.

PropertyTagNewSubfileType

Type of data in a subfile.

PropertyTagSubfileType

Type of data in a subfile.

PropertyTagImageWidth

Number of pixels per row.

PropertyTagImageHeight

Number of pixel rows.

PropertyTagBitsPerSample

Number of bits per color component. See also PropertyTagSamplesPerPixel.

PropertyTagCompression

Compression scheme used for the image data.

PropertyTagPhotometricInterp

How pixel data will be interpreted.

PropertyTagThreshHolding

Technique used to convert from gray pixels to black and white pixels.

PropertyTagCellWidth

Width of the dithering or halftoning matrix.

PropertyTagCellHeight

Height of the dithering or halftoning matrix.

PropertyTagFillOrder

Logical order of bits in a byte.

PropertyTagDocumentName

Null-terminated character string that specifies the name of the document from which the image was scanned.

PropertyTagImageDescription

Null-terminated character string that specifies the title of the image.

PropertyTagEquipMake

Null-terminated character string that specifies the manufacturer of the equipment used to record the image.

PropertyTagEquipModel

Null-terminated character string that specifies the model name or model number of the equipment used to record the image.

PropertyTagStripOffsets

For each strip, the byte offset of that strip. See also PropertyTagRowsPerStrip> and PropertyTagStripBytesCount.

PropertyTagOrientation

Image orientation viewed in terms of rows and columns.

PropertyTagSamplesPerPixel

Number of color components per pixel.

PropertyTagRowsPerStrip

Number of rows per strip. See also PropertyTagStripBytesCount and PropertyTagStripOffsets.

PropertyTagStripBytesCount

For each strip, the total number of bytes in that strip.

PropertyTagMinSampleValue

For each color component, the minimum value assigned to that component. See also PropertyTagSamplesPerPixel.

PropertyTagMaxSampleValue

For each color component, the maximum value assigned to that component. See also PropertyTagSamplesPerPixel.

PropertyTagXResolution

Number of pixels per unit in the image width (x) direction. The unit is specified by PropertyTagResolutionUnit

PropertyTagYResolution

Number of pixels per unit in the image height (y) direction. The unit is specified by PropertyTagResolutionUnit.

PropertyTagPlanarConfig

Whether pixel components are recorded in chunky or planar format.

PropertyTagPageName

Null-terminated character string that specifies the name of the page from which the image was scanned.

PropertyTagXPosition

Offset from the left side of the page to the left side of the image. The unit of measure is specified by PropertyTagResolutionUnit.

PropertyTagYPosition

Offset from the top of the page to the top of the image. The unit of measure is specified by PropertyTagResolutionUnit.

PropertyTagFreeOffset

For each string of contiguous unused bytes, the byte offset of that string.

PropertyTagFreeByteCounts

For each string of contiguous unused bytes, the number of bytes in that string.

PropertyTagGrayResponseUnit

Precision of the number specified by PropertyTagGrayResponseCurve. 1 specifies tenths, 2 specifies hundredths, 3 specifies thousandths, and so on.

PropertyTagGrayResponseCurve

For each possible pixel value in a grayscale image, the optical density of that pixel value.

PropertyTagT4Option

Set of flags that relate to T4 encoding.

PropertyTagT6Option

Set of flags that relate to T6 encoding.

PropertyTagResolutionUnit

Unit of measure for the horizontal resolution and the vertical resolution.

PropertyTagPageNumber

Page number of the page from which the image was scanned.

PropertyTagTransferFunction

Tables that specify transfer functions for the image.

PropertyTagSoftwareUsed

Null-terminated character string that specifies the name and version of the software or firmware of the device used to generate the image.

PropertyTagDateTime

Date and time the image was created.

PropertyTagArtist

Null-terminated character string that specifies the name of the person who created the image.

PropertyTagHostComputer

Null-terminated character string that specifies the computer and/or operating system used to create the image.

PropertyTagPredictor

Type of prediction scheme that was applied to the image data before the encoding scheme was applied.

PropertyTagWhitePoint

Chromaticity of the white point of the image.

PropertyTagPrimaryChromaticities

For each of the three primary colors in the image, the chromaticity of that color.

PropertyTagColorMap

Color palette (lookup table) for a palette-indexed image.

PropertyTagHalftoneHints

Information used by the halftone function

PropertyTagTileWidth

Number of pixel columns in each tile.

PropertyTagTileLength

Number of pixel rows in each tile.

PropertyTagTileOffset

For each tile, the byte offset of that tile.

PropertyTagTileByteCounts

For each tile, the number of bytes in that tile.

PropertyTagInkSet

Set of inks used in a separated image.

PropertyTagInkNames

Sequence of concatenated, null-terminated, character strings that specify the names of the inks used in a separated image.

PropertyTagNumberOfInks

Number of inks.

PropertyTagDotRange

Color component values that correspond to a 0 percent dot and a 100 percent dot.

PropertyTagTargetPrinter

Null-terminated character string that describes the intended printing environment.

PropertyTagExtraSamples

Number of extra color components. For example, one extra component might hold an alpha value.

PropertyTagSampleFormat

For each color component, the numerical format (unsigned, signed, floating point) of that component. See also PropertyTagSamplesPerPixel.

PropertyTagSMinSampleValue

For each color component, the minimum value of that component. See also PropertyTagSamplesPerPixel.

PropertyTagSMaxSampleValue

For each color component, the maximum value of that component. See also PropertyTagSamplesPerPixel.

PropertyTagTransferRange

Table of values that extends the range of the transfer function.

PropertyTagJPEGProc

JPEG compression process.

PropertyTagJPEGInterFormat

Offset to the start of a JPEG bitstream.

PropertyTagJPEGInterLength

Length, in bytes, of the JPEG bitstream.

PropertyTagJPEGRestartInterval

Length of the restart interval.

PropertyTagJPEGLosslessPredictors

For each color component, a lossless predictor-selection value for that component. See also PropertyTagSamplesPerPixel.

PropertyTagJPEGPointTransforms

For each color component, a point transformation value for that component. See also PropertyTagSamplesPerPixel.

PropertyTagJPEGQTables

For each color component, the offset to the quantization table for that component. See also PropertyTagSamplesPerPixel.

PropertyTagJPEGDCTables

For each color component, the offset to the DC Huffman table (or lossless Huffman table) for that component. See also PropertyTagSamplesPerPixel.

PropertyTagJPEGACTables

For each color component, the offset to the AC Huffman table for that component. See also PropertyTagSamplesPerPixel.

PropertyTagYCbCrCoefficients

Coefficients for transformation from RGB to YCbCr image data.

PropertyTagYCbCrSubsampling

Sampling ratio of chrominance components in relation to the luminance component.

PropertyTagYCbCrPositioning

Position of chrominance components in relation to the luminance component.

PropertyTagREFBlackWhite

Reference black point value and reference white point value.

PropertyTagGamma

Gamma value attached to the image. The gamma value is stored as a rational number (pair of long) with a numerator of 100000. For example, a gamma value of 2.2 is stored as the pair (100000, 45455).

PropertyTagICCProfileDescriptor

Null-terminated character string that identifies an ICC profile.

PropertyTagSRGBRenderingIntent

How the image should be displayed as defined by the International Color Consortium (ICC). If a GDI+ Image object is constructed with the useEmbeddedColorManagement parameter set to TRUE, then GDI+ renders the image according to the specified rendering intent. The intent can be set to perceptual, relative colorimetric, saturation, or absolute colorimetric.

• Perceptual intent, which is suitable for photographs, gives good adaptation to the display device gamut at the expense of colorimetric accuracy.
• Relative colorimetric intent is suitable for images (for example, logos) that require color appearance matching that is relative to the display device white point.
• Saturation intent, which is suitable for charts and graphs, preserves saturation at the expense of hue and lightness.
• Absolute colorimetric intent is suitable for proofs (previews of images destined for a different display device) that require preservation of absolute colorimetry.

PropertyTagImageTitle

Null-terminated character string that specifies the title of the image.

PropertyTagResolutionXUnit

Units in which to display horizontal resolution.

PropertyTagResolutionYUnit

Units in which to display vertical resolution.

PropertyTagResolutionXLengthUnit

Units in which to display the image width.

PropertyTagResolutionYLengthUnit

Units in which to display the image height.

PropertyTagPrintFlags

Sequence of one-byte Boolean values that specify printing options.

PropertyTagPrintFlagsVersion

Print flags version.

PropertyTagPrintFlagsCrop

Print flags center crop marks.

PropertyTagPrintFlagsBleedWidth

Print flags bleed width.

PropertyTagPrintFlagsBleedWidthScale

Print flags bleed width scale.

PropertyTagHalftoneLPI

Ink's screen frequency, in lines per inch.

PropertyTagHalftoneLPIUnit

Units for the screen frequency.

PropertyTagHalftoneDegree

Angle for screen.

PropertyTagHalftoneShape

Shape of the halftone dots.

PropertyTagHalftoneMisc

Miscellaneous halftone information.

PropertyTagHalftoneScreen

Boolean value that specifies whether to use the printer's default screens.

PropertyTagJPEGQuality

Private tag used by the Adobe Photoshop format. Not for public use.

PropertyTagGridSize

Block of information about grids and guides.

PropertyTagThumbnailFormat

Format of the thumbnail image.

PropertyTagThumbnailWidth

Width, in pixels, of the thumbnail image.

PropertyTagThumbnailHeight

Height, in pixels, of the thumbnail image.

PropertyTagThumbnailColorDepth

bits per pixel (BPP) for the thumbnail image.

PropertyTagThumbnailPlanes

Number of color planes for the thumbnail image.

PropertyTagThumbnailRawBytes

Byte offset between rows of pixel data.

PropertyTagThumbnailSize

Total size, in bytes, of the thumbnail image.

PropertyTagThumbnailCompressedSize

Compressed size, in bytes, of the thumbnail image.

PropertyTagColorTransferFunction

Table of values that specify color transfer functions.

PropertyTagThumbnailData

Raw thumbnail bits in JPEG or RGB format. Depends on PropertyTagThumbnailFormat.

PropertyTagThumbnailImageWidth

Number of pixels per row in the thumbnail image.

PropertyTagThumbnailImageHeight

Number of pixel rows in the thumbnail image.

PropertyTagThumbnailBitsPerSample

Number of bits per color component in the thumbnail image. See also PropertyTagThumbnailSamplesPerPixel.

PropertyTagThumbnailCompression

Compression scheme used for thumbnail image data.

PropertyTagThumbnailPhotometricInterp

How thumbnail pixel data will be interpreted.

PropertyTagThumbnailImageDescription

Null-terminated character string that specifies the title of the image.

PropertyTagThumbnailEquipMake

Null-terminated character string that specifies the manufacturer of the equipment used to record the thumbnail image.

PropertyTagThumbnailEquipModel

Null-terminated character string that specifies the model name or model number of the equipment used to record the thumbnail image.

PropertyTagThumbnailStripOffsets

For each strip in the thumbnail image, the byte offset of that strip. See also PropertyTagThumbnailRowsPerStrip and PropertyTagThumbnailStripBytesCount.

PropertyTagThumbnailOrientation

Thumbnail image orientation in terms of rows and columns. See also PropertyTagOrientation.

PropertyTagThumbnailSamplesPerPixel

Number of color components per pixel in the thumbnail image.

PropertyTagThumbnailRowsPerStrip

Number of rows per strip in the thumbnail image. See also PropertyTagThumbnailStripBytesCount and PropertyTagThumbnailStripOffsets.

PropertyTagThumbnailStripBytesCount

For each thumbnail image strip, the total number of bytes in that strip.

PropertyTagThumbnailResolutionX

Thumbnail resolution in the width direction. The resolution unit is given in PropertyTagThumbnailResolutionUnit

PropertyTagThumbnailResolutionY

Thumbnail resolution in the height direction. The resolution unit is given in PropertyTagThumbnailResolutionUnit

PropertyTagThumbnailPlanarConfig

Whether pixel components in the thumbnail image are recorded in chunky or planar format. See also PropertyTagPlanarConfig.

PropertyTagThumbnailResolutionUnit

Unit of measure for the horizontal resolution and the vertical resolution of the thumbnail image. See also PropertyTagResolutionUnit.

PropertyTagThumbnailTransferFunction

Tables that specify transfer functions for the thumbnail image. See also PropertyTagTransferFunction.

PropertyTagThumbnailSoftwareUsed

Null-terminated character string that specifies the name and version of the software or firmware of the device used to generate the thumbnail image.

PropertyTagThumbnailDateTime

Date and time the thumbnail image was created. See also PropertyTagDateTime.

PropertyTagThumbnailArtist

Null-terminated character string that specifies the name of the person who created the thumbnail image.

PropertyTagThumbnailWhitePoint

Chromaticity of the white point of the thumbnail image. See also PropertyTagWhitePoint.

PropertyTagThumbnailPrimaryChromaticities

For each of the three primary colors in the thumbnail image, the chromaticity of that color. See also PropertyTagPrimaryChromaticities.

PropertyTagThumbnailYCbCrCoefficients

Coefficients for transformation from RGB to YCbCr data for the thumbnail image. See also PropertyTagYCbCrCoefficients.

PropertyTagThumbnailYCbCrSubsampling

Sampling ratio of chrominance components in relation to the luminance component for the thumbnail image. See also PropertyTagYCbCrSubsampling.

PropertyTagThumbnailYCbCrPositioning

Position of chrominance components in relation to the luminance component for the thumbnail image. See also PropertyTagYCbCrPositioning.

PropertyTagThumbnailRefBlackWhite

Reference black point value and reference white point value for the thumbnail image. See also PropertyTagREFBlackWhite.

PropertyTagThumbnailCopyRight

Null-terminated character string that contains copyright information for the thumbnail image.

PropertyTagLuminanceTable

Luminance table. The luminance table and the chrominance table are used to control JPEG quality. A valid luminance or chrominance table has 64 entries of type PropertyTagTypeShort. If an image has either a luminance table or a chrominance table, then it must have both tables.

PropertyTagChrominanceTable

Chrominance table. The luminance table and the chrominance table are used to control JPEG quality. A valid luminance or chrominance table has 64 entries of type PropertyTagTypeShort. If an image has either a luminance table or a chrominance table, then it must have both tables.

PropertyTagFrameDelay

Time delay, in hundredths of a second, between two frames in an animated GIF image.

PropertyTagLoopCount

For an animated GIF image, the number of times to display the animation. A value of 0 specifies that the animation should be displayed infinitely.

PropertyTagGlobalPalette

Color palette for an indexed bitmap in a GIF image.

PropertyTagIndexBackground

Index of the background color in the palette of a GIF image.

PropertyTagIndexTransparent

Index of the transparent color in the palette of a GIF image.

PropertyTagPixelUnit

Unit for PropertyTagPixelPerUnitX and PropertyTagPixelPerUnitY.

PropertyTagPixelPerUnitX

Pixels per unit in the x direction.

PropertyTagPixelPerUnitY

Pixels per unit in the y direction.

PropertyTagPaletteHistogram

Palette histogram.

PropertyTagCopyright

Null-terminated character string that contains copyright information.

PropertyTagExifExposureTime

Exposure time, measured in seconds.

PropertyTagExifFNumber

F number.

PropertyTagExifIFD

Private tag used by GDI+. Not for public use. GDI+ uses this tag to locate Exif-specific information.

PropertyTagICCProfile

ICC profile embedded in the image.

PropertyTagExifExposureProg

Class of the program used by the camera to set exposure when the picture is taken.

PropertyTagExifSpectralSense

Null-terminated character string that specifies the spectral sensitivity of each channel of the camera used. The string is compatible with the standard developed by the ASTM Technical Committee.

PropertyTagGpsIFD

Offset to a block of GPS property items. Property items whose tags have the prefix PropertyTagGps are stored in the GPS block. The GPS property items are defined in the EXIF specification. GDI+ uses this tag to locate GPS information, but GDI+ does not expose this tag for public use.

PropertyTagExifISOSpeed

ISO speed and ISO latitude of the camera or input device as specified in ISO 12232.

PropertyTagExifOECF

Optoelectronic conversion function (OECF) specified in ISO 14524. The OECF is the relationship between the camera optical input and the image values.

PropertyTagExifVer

Version of the EXIF standard supported. Nonexistence of this field is taken to mean nonconformance to the standard. Conformance to the standard is indicated by recording 0210 as a 4-byte ASCII string. Because the type is PropertyTagTypeUndefined, there is no NULL terminator.

PropertyTagExifDTOrig

Date and time when the original image data was generated. For a DSC, the date and time when the picture was taken. The format is YYYY:MM:DD HH:MM:SS with time shown in 24-hour format and the date and time separated by one blank character (0x2000). The character string length is 20 bytes including the NULL terminator. When the field is empty, it is treated as unknown.

PropertyTagExifDTDigitized

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 DateTimeOriginal and DateTimeDigitized will have the same contents.

The format is YYYY:MM:DD HH:MM:SS with time shown in 24-hour format and the date and time separated by one blank character (0x2000). The character string length is 20 bytes including the NULL terminator. When the field is empty, it is treated as unknown.

PropertyTagExifCompConfig

Information specific to compressed data. The channels of each component are arranged in order from the first component to the fourth. For uncompressed data, the data arrangement is given in the PropertyTagPhotometricInterp tag.

However, because PropertyTagPhotometricInterp 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 support other sequences.

PropertyTagExifCompBPP

Information specific to compressed data. The compression mode used for a compressed image is indicated in unit BPP.

PropertyTagExifShutterSpeed

Shutter speed. The unit is the Additive System of Photographic Exposure (APEX) value.

PropertyTagExifAperture

Lens aperture. The unit is the APEX value.

PropertyTagExifBrightness

Brightness value. The unit is the APEX value. Ordinarily it is given in the range of -99.99 to 99.99.

PropertyTagExifExposureBias

Exposure bias. The unit is the APEX value. Ordinarily it is given in the range -99.99 to 99.99.

PropertyTagExifMaxAperture

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.

PropertyTagExifSubjectDist

Distance to the subject, measured in meters.

PropertyTagExifMeteringMode

Metering mode.

PropertyTagExifLightSource

Type of light source.

PropertyTagExifFlash

Flash status. This tag is recorded when an image is taken using a strobe light (flash). Bit 0 indicates the flash firing status, and bits 1 and 2 indicate the flash return status.

PropertyTagExifFocalLength

Actual focal length, in millimeters, of the lens. Conversion is not made to the focal length of a 35 millimeter film camera.

PropertyTagExifMakerNote

Note tag. A tag used by manufacturers of EXIF writers to record information. The contents are up to the manufacturer.

PropertyTagExifUserComment

Comment tag. A tag used by EXIF users to write keywords or comments about the image besides those in PropertyTagImageDescription and without the character-code limitations of the PropertyTagImageDescription tag.

The character code used in the PropertyTagExifUserComment 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 (0). ID codes are assigned by means of registration. Because the type is not ASCII, it is not necessary to use a NULL terminator.

PropertyTagExifDTSubsec

Null-terminated character string that specifies a fraction of a second for the PropertyTagDateTime tag.

PropertyTagExifDTOrigSS

Null-terminated character string that specifies a fraction of a second for the PropertyTagExifDTOrig tag.

PropertyTagExifDTDigSS

Null-terminated character string that specifies a fraction of a second for the PropertyTagExifDTDigitized tag.

PropertyTagExifFPXVer

FlashPix format version supported by an FPXR file. If the FPXR function supports FlashPix format version 1.0, this is indicated similarly to PropertyTagExifVer by recording 0100 as a 4-byte ASCII string. Because the type is PropertyTagTypeUndefined, there is no NULL terminator.

PropertyTagExifColorSpace

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 (=0xFFFF) is set. Image data recorded as Uncalibrated can be treated as sRGB when it is converted to FlashPix.

PropertyTagExifPixXDim

Information 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.

PropertyTagExifPixYDim

Information 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. Because data padding is unnecessary in the vertical direction, the number of lines recorded in this valid image height tag will be the same as that recorded in the SOF.

PropertyTagExifRelatedWav

The name of an audio file related to the image data. The only relational information recorded is the EXIF audio file name and extension (an ASCII string that consists of 8 characters plus a period (.), plus 3 characters). The path is not recorded. When you use this tag, audio files must be recorded in conformance with the EXIF audio format. Writers can also store audio data within APP2 as FlashPix extension stream data.

PropertyTagExifInterop

Offset to a block of property items that contain interoperability information.

PropertyTagExifFlashEnergy

Strobe energy, in Beam Candle Power Seconds (BCPS), at the time the image was captured.

PropertyTagExifSpatialFR

Camera or input device spatial frequency table and SFR values in the image width, image height, and diagonal direction, as specified in ISO 12233.

PropertyTagExifFocalXRes

Number of pixels in the image width (x) direction per unit on the camera focal plane. The unit is specified in PropertyTagExifFocalResUnit.

PropertyTagExifFocalYRes

Number of pixels in the image height (y) direction per unit on the camera focal plane. The unit is specified in PropertyTagExifFocalResUnit.

PropertyTagExifFocalResUnit

Unit of measure for PropertyTagExifFocalXRes and PropertyTagExifFocalYRes.

PropertyTagExifSubjectLoc

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. The first value indicates the column number, and the second value indicates the row number.

PropertyTagExifExposureIndex

Exposure index selected on the camera or input device at the time the image was captured.

PropertyTagExifSensingMethod

Image sensor type on the camera or input device.

PropertyTagExifFileSource

The image source. If a DSC recorded the image, the value of this tag is 3.

PropertyTagExifSceneType

The type of scene. If a DSC recorded the image, the value of this tag must be set to 1, indicating that the image was directly photographed.

PropertyTagExifCfaPattern

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.

Related Topics

• Image File Format Specifications
• Image Property Tag Constants
• Image Property Tag Type Constants
• Property Tags in Alphabetical Order
• Property Tags in Numerical Order
• Reading and Writing Metadata