Aspose::Pdf::Engine::Presentation::Graphics::Exif Namespace Reference

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Enumerations

enum  ExifProperties : uint16_t {
  ExifProperties::ImageWidth = 0x100, ExifProperties::ImageLength = 0x101, ExifProperties::BitsPerSample = 0x102, ExifProperties::Compression = 0x103,
  ExifProperties::PhotometricInterpretation = 0x106, ExifProperties::ImageDescription = 0x10E, ExifProperties::Make = 0x10F, ExifProperties::Model = 0x110,
  ExifProperties::Orientation = 0x112, ExifProperties::SamplesPerPixel = 0x115, ExifProperties::XResolution = 0x11A, ExifProperties::YResolution = 0x11B,
  ExifProperties::PlanarConfiguration = 0x11C, ExifProperties::ResolutionUnit = 0x128, ExifProperties::TransferFunction = 0x12D, ExifProperties::Software = 0x131,
  ExifProperties::DateTime = 0x132, ExifProperties::Artist = 0x13B, ExifProperties::WhitePoint = 0x13E, ExifProperties::PrimaryChromaticities = 0x13F,
  ExifProperties::YCbCrCoefficients = 0x211, ExifProperties::YCbCrSubSampling = 0x212, ExifProperties::YCbCrPositioning = 0x213, ExifProperties::ReferenceBlackWhite = 0x214,
  ExifProperties::Copyright = 0x8298, ExifProperties::ExposureTime = 0x829A, ExifProperties::FNumber = 0x829D, ExifProperties::ExposureProgram = 0x8822,
  ExifProperties::SpectralSensitivity = 0x8824, ExifProperties::PhotographicSensitivity = 0x8827, ExifProperties::OECF = 0x8828, ExifProperties::ExifVersion = 0x9000,
  ExifProperties::DateTimeOriginal = 0x9003, ExifProperties::DateTimeDigitized = 0x9004, ExifProperties::ComponentsConfiguration = 0x9101, ExifProperties::CompressedBitsPerPixel = 0x9102,
  ExifProperties::ShutterSpeedValue = 0x9201, ExifProperties::ApertureValue = 0x9202, ExifProperties::BrightnessValue = 0x9203, ExifProperties::ExposureBiasValue = 0x9204,
  ExifProperties::MaxApertureValue = 0x9205, ExifProperties::SubjectDistance = 0x9206, ExifProperties::MeteringMode = 0x9207, ExifProperties::LightSource = 0x9208,
  ExifProperties::Flash = 0x9209, ExifProperties::FocalLength = 0x920A, ExifProperties::SubjectArea = 0x9214, ExifProperties::MakerNote = 0x927C,
  ExifProperties::UserComment = 0x9286, ExifProperties::SubsecTime = 0x9290, ExifProperties::SubsecTimeOriginal = 0x9291, ExifProperties::SubsecTimeDigitized = 0x9292,
  ExifProperties::FlashpixVersion = 0xA000, ExifProperties::ColorSpace = 0xA001, ExifProperties::RelatedSoundFile = 0xA004, ExifProperties::FlashEnergy = 0xA20B,
  ExifProperties::SpatialFrequencyResponse = 0xA20C, ExifProperties::FocalPlaneXResolution = 0xA20E, ExifProperties::FocalPlaneYResolution = 0xA20F, ExifProperties::FocalPlaneResolutionUnit = 0xA210,
  ExifProperties::SubjectLocation = 0xA214, ExifProperties::ExposureIndex = 0xA215, ExifProperties::SensingMethod = 0xA217, ExifProperties::FileSource = 0xA300,
  ExifProperties::SceneType = 0xA301, ExifProperties::CFAPattern = 0xA302, ExifProperties::CustomRendered = 0xA401, ExifProperties::ExposureMode = 0xA402,
  ExifProperties::WhiteBalance = 0xA403, ExifProperties::DigitalZoomRatio = 0xA404, ExifProperties::FocalLengthIn35MmFilm = 0xA405, ExifProperties::SceneCaptureType = 0xA406,
  ExifProperties::GainControl = 0xA407, ExifProperties::Contrast = 0xA408, ExifProperties::Saturation = 0xA409, ExifProperties::Sharpness = 0xA40A,
  ExifProperties::DeviceSettingDescription = 0xA40B, ExifProperties::SubjectDistanceRange = 0xA40C, ExifProperties::ImageUniqueID = 0xA420, ExifProperties::GPSVersionID = 0x0,
  ExifProperties::GPSLatitudeRef = 0x1, ExifProperties::GPSLatitude = 0x2, ExifProperties::GPSLongitudeRef = 0x3, ExifProperties::GPSLongitude = 0x4,
  ExifProperties::GPSAltitudeRef = 0x5, ExifProperties::GPSAltitude = 0x6, ExifProperties::GPSTimestamp = 0x7, ExifProperties::GPSSatellites = 0x8,
  ExifProperties::GPSStatus = 0x9, ExifProperties::GPSMeasureMode = 0xA, ExifProperties::GPSDOP = 0xB, ExifProperties::GPSSpeedRef = 0xC,
  ExifProperties::GPSSpeed = 0xD, ExifProperties::GPSTrackRef = 0xE, ExifProperties::GPSTrack = 0xF, ExifProperties::GPSImgDirectionRef = 0x10,
  ExifProperties::GPSImgDirection = 0x11, ExifProperties::GPSMapDatum = 0x12, ExifProperties::GPSDestLatitudeRef = 0x13, ExifProperties::GPSDestLatitude = 0x14,
  ExifProperties::GPSDestLongitudeRef = 0x15, ExifProperties::GPSDestLongitude = 0x16, ExifProperties::GPSDestBearingRef = 0x17, ExifProperties::GPSDestBearing = 0x18,
  ExifProperties::GPSDestDistanceRef = 0x19, ExifProperties::GPSDestDistance = 0x1A, ExifProperties::GPSProcessingMethod = 0x1B, ExifProperties::GPSAreaInformation = 0x1C,
  ExifProperties::GPSDateStamp = 0x1D, ExifProperties::GPSDifferential = 0x1E, ExifProperties::StripOffsets = 0x111, ExifProperties::JPEGInterchangeFormat = 0x201,
  ExifProperties::JPEGInterchangeFormatLength = 0x202, ExifProperties::ExifIfdPointer = 0x8769, ExifProperties::GPSIfdPointer = 0x8825, ExifProperties::RowsPerStrip = 0x116,
  ExifProperties::StripByteCounts = 0x117, ExifProperties::PixelXDimension = 0xA002, ExifProperties::PixelYDimension = 0xA003, ExifProperties::Gamma = 0xA500,
  ExifProperties::SensitivityType = 0x8830, ExifProperties::StandardOutputSensitivity = 0x8831, ExifProperties::RecommendedExposureIndex = 0x8832, ExifProperties::ISOSpeed = 0x8833,
  ExifProperties::ISOSpeedLatitudeYYY = 0x8834, ExifProperties::ISOSpeedLatitudeZZZ = 0x8835, ExifProperties::CameraOwnerName = 0xA430, ExifProperties::BodySerialNumber = 0xA431,
  ExifProperties::LensMake = 0xA433, ExifProperties::LensModel = 0xA434, ExifProperties::LensSerialNumber = 0xA435, ExifProperties::LensSpecification = 0xA432
}
 Exif tags list More...
 

Enumeration Type Documentation

◆ ExifProperties

Exif tags list

Enumerator
ImageWidth 

The number of columns of image data, equal to the number of pixels per row.

ImageLength 

The number of rows of image data.

BitsPerSample 

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.

Compression 

The compression scheme used for the image data. When a primary image is JPEG compressed, this designation is not necessary and is omitted.

PhotometricInterpretation 

The pixel composition.

ImageDescription 

A character string giving the title of the image. It may be a comment such as "1988 company picnic" or the like.

Make 

The 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.

Model 

The 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.

Orientation 

The image orientation viewed in terms of rows and columns.

SamplesPerPixel 

The number of components per pixel. Since this standard applies to RGB and YCbCr images, the value set for this tag is 3.

XResolution 

The number of pixels per ResolutionUnit in the ImageWidth direction. When the image resolution is unknown, 72 [dpi] is designated.

YResolution 

The number of pixels per ResolutionUnit in the ImageLength direction. The same value as XResolution is designated.

PlanarConfiguration 

Indicates whether pixel components are recorded in a chunky or planar format. If this field does not exist, the TIFF default of 1 (chunky) is assumed.

ResolutionUnit 

The 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.

TransferFunction 

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 ColorSpace tag.

Software 

This 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.

DateTime 

The date and time of image creation. In Exif standard, it is the date and time the file was changed.

Artist 

This 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. Ex.) "Camera owner, John Smith; Photographer, Michael Brown; Image creator, Ken James"

WhitePoint 

The chromaticity of the white point of the image. Normally this tag is not necessary, since color space is specified in the colorspace information ColorSpace tag.

PrimaryChromaticities 

The chromaticity of the three primary colors of the image. Normally this tag is not necessary, since colorspace is specified in the colorspace information ColorSpace tag.

YCbCrCoefficients 

The matrix coefficients for transformation from RGB to YCbCr image data.

YCbCrSubSampling 

The sampling ratio of chrominance components in relation to the luminance component.

YCbCrPositioning 

The 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.

ReferenceBlackWhite 

The 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

Copyright 

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. 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). When only the photographer copyright is given, it is terminated by one NULL code . 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. When the field is left blank, it is treated as unknown.

ExposureTime 

Exposure time, given in seconds.

FNumber 

The F number.

ExposureProgram 

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

SpectralSensitivity 

Indicates the spectral sensitivity of each channel of the camera used.

PhotographicSensitivity 

Indicates the ISO Speed and ISO Latitude of the camera or input device as specified in ISO 12232.

OECF 

Indicates the Opto-Electric Conversion Function (OECF) specified in ISO 14524.

ExifVersion 

The exif version.

DateTimeOriginal 

The date and time when the original image data was generated.

DateTimeDigitized 

The date time digitized.

ComponentsConfiguration 

The components configuration.

CompressedBitsPerPixel 

Specific to compressed data; states the compressed bits per pixel.

ShutterSpeedValue 

The shutter speed value.

ApertureValue 

The lens aperture value.

BrightnessValue 

The brightness value.

ExposureBiasValue 

The exposure bias value.

MaxApertureValue 

The max aperture value.

SubjectDistance 

The distance to the subject, given in meters.

MeteringMode 

The metering mode.

LightSource 

The kind light source.

Flash 

Indicates the status of flash when the image was shot.

FocalLength 

The actual focal length of the lens, in mm.

SubjectArea 

This tag indicates the location and area of the main subject in the overall scene.

MakerNote 

A tag for manufacturers of Exif writers to record any desired information. The contents are up to the manufacturer, but this tag should not be used for any other than its intended purpose.

UserComment 

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.

SubsecTime 

A tag used to record fractions of seconds for the DateTime tag.

SubsecTimeOriginal 

A tag used to record fractions of seconds for the DateTimeOriginal tag.

SubsecTimeDigitized 

A tag used to record fractions of seconds for the DateTimeDigitized tag.

FlashpixVersion 

The Flashpix format version supported by a FPXR file.

ColorSpace 

The color space information tag (ColorSpace) is always recorded as the color space specifier.

RelatedSoundFile 

The related sound file.

FlashEnergy 

Indicates the strobe energy at the time the image is captured, as measured in Beam Candle Power Seconds(BCPS).

SpatialFrequencyResponse 

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.

FocalPlaneXResolution 

Indicates the number of pixels in the image width (X) direction per FocalPlaneResolutionUnit on the camera focal plane.

FocalPlaneYResolution 

Indicates the number of pixels in the image height (Y) direction per FocalPlaneResolutionUnit on the camera focal plane.

FocalPlaneResolutionUnit 

Indicates the unit for measuring FocalPlaneXResolution and FocalPlaneYResolution. This value is the same as the ResolutionUnit.

SubjectLocation 

Indicates 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.

ExposureIndex 

Indicates the exposure index selected on the camera or input device at the time the image is captured.

SensingMethod 

Indicates the image sensor type on the camera or input device.

FileSource 

The file source.

SceneType 

Indicates 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.

CFAPattern 

Indicates 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.

CustomRendered 

This 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.

ExposureMode 

This 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.

WhiteBalance 

This tag indicates the white balance mode set when the image was shot.

DigitalZoomRatio 

This 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.

FocalLengthIn35MmFilm 

This 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.

SceneCaptureType 

This tag indicates the type of scene that was shot. It can also be used to record the mode in which the image was shot.

GainControl 

This tag indicates the degree of overall image gain adjustment.

Contrast 

This tag indicates the direction of contrast processing applied by the camera when the image was shot.

Saturation 

This tag indicates the direction of saturation processing applied by the camera when the image was shot.

Sharpness 

This tag indicates the direction of sharpness processing applied by the camera when the image was shot

DeviceSettingDescription 

This 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.

SubjectDistanceRange 

This tag indicates the distance to the subject.

ImageUniqueID 

The image unique id.

GPSVersionID 

Indicates the version of GPSInfoIFD.

GPSLatitudeRef 

Indicates whether the latitude is north or south latitude.

GPSLatitude 

Indicates the latitude. 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.

GPSLongitudeRef 

Indicates whether the longitude is east or west longitude.

GPSLongitude 

Indicates the longitude. 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.

GPSAltitudeRef 

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.

GPSAltitude 

Indicates the altitude based on the reference in GPSAltitudeRef. Altitude is expressed as one RATIONAL value. The reference unit is meters.

GPSTimestamp 

Indicates the time as UTC (Coordinated Universal Time). TimeStamp is expressed as three RATIONAL values giving the hour, minute, and second.

GPSSatellites 

Indicates 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.

GPSStatus 

Indicates the status of the GPS receiver when the image is recorded.

GPSMeasureMode 

Indicates the GPS measurement mode. - 2- or 3- dimensional.

GPSDOP 

Indicates the GPS DOP (data degree of precision). An HDOP value is written during two-dimensional measurement, and PDOP during three-dimensional measurement.

GPSSpeedRef 

Indicates the unit used to express the GPS receiver speed of movement. 'K' 'M' and 'N' represents kilometers per hour, miles per hour, and knots.

GPSSpeed 

Indicates the speed of GPS receiver movement.

GPSTrackRef 

Indicates the reference for giving the direction of GPS receiver movement. 'T' denotes true direction and 'M' is magnetic direction.

GPSTrack 

Indicates the direction of GPS receiver movement. The range of values is from 0.00 to 359.99.

GPSImgDirectionRef 

Indicates the reference for giving the direction of the image when it is captured. 'T' denotes true direction and 'M' is magnetic direction.

GPSImgDirection 

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

GPSMapDatum 

Indicates the geodetic survey data used by the GPS receiver.

GPSDestLatitudeRef 

Indicates whether the latitude of the destination point is north or south latitude. The ASCII value 'N' indicates north latitude, and 'S' is south latitude.

GPSDestLatitude 

Indicates 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.

GPSDestLongitudeRef 

Indicates whether the longitude of the destination point is east or west longitude. ASCII 'E' indicates east longitude, and 'W' is west longitude.

GPSDestLongitude 

Indicates 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.

GPSDestBearingRef 

Indicates the reference used for giving the bearing to the destination point. 'T' denotes true direction and 'M' is magnetic direction.

GPSDestBearing 

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

GPSDestDistanceRef 

Indicates the unit used to express the distance to the destination point. 'K', 'M' and 'N' represent kilometers, miles and knots.

GPSDestDistance 

Indicates the distance to the destination point.

GPSProcessingMethod 

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.

GPSAreaInformation 

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.

GPSDateStamp 

A character string recording date and time information relative to UTC (Coordinated Universal Time). The format is YYYY:MM:DD.

GPSDifferential 

Indicates whether differential correction is applied to the GPS receiver.

StripOffsets 

For 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. Aux tag.

JPEGInterchangeFormat 

The offset to the start byte (SOI) of JPEG compressed thumbnail data. This is not used for primary image JPEG data.

JPEGInterchangeFormatLength 

The 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.

ExifIfdPointer 

A pointer to the Exif IFD. Interoperability, Exif IFD has the same structure as that of the IFD specified in TIFF. ordinarily, however, it does not contain image data as in the case of TIFF.

GPSIfdPointer 

The gps ifd pointer.

RowsPerStrip 

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.

StripByteCounts 

The total number of bytes in each strip.

PixelXDimension 

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.

PixelYDimension 

Information specific to compressed data. When a compressed file is recorded, the valid height of the meaningful image shall be recorded in this tag

Gamma 

Gamma value

SensitivityType 

Type of photographic sensitivity

StandardOutputSensitivity 

Indicates standard output sensitivity of camera

RecommendedExposureIndex 

Indicates recommended exposure index

ISOSpeed 

Information about iso speed value as defined in ISO 12232

ISOSpeedLatitudeYYY 

This tag indicates ISO speed latitude yyy value as defined in ISO 12232

ISOSpeedLatitudeZZZ 

This tag indicates ISO speed latitude zzz value as defined in ISO 12232

CameraOwnerName 

Contains camera owner name

BodySerialNumber 

Contains camera body serial number

LensMake 

This tag records lens manufacturer

LensModel 

This tag records lens`s model name and model number

LensSerialNumber 

This tag records the serial number of interchangable lens

LensSpecification 

This tag notes minimum focal length, maximum focal length, minimum F number in the minimum focal length and minimum F number in maximum focal length