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RasterCommentMetadataType Enumeration

Summary

List of available metadata comments.

Syntax

Java

Objective-C

WinRT C#

C++

public enum RasterCommentMetadataType

Public Enum RasterCommentMetadataType

public enum RasterCommentMetadataType

typedef NS_ENUM(NSInteger, LTRasterCommentMetadataType)

public enum RasterCommentMetadataType

Leadtools.RasterCommentMetadataType = function() { }; 
Leadtools.RasterCommentMetadataType.prototype = {<br/> 
  Artist = 0, 
    Copyright = 1, 
    DateTime = 2, 
    Description = 3, 
    HostComputer = 4, 
    Make = 5, 
    Model = 6, 
    NameOfDocument = 7, 
    NameOfPage = 8, 
    Software = 9, 
    PatientName = 10, 
    PatientId = 11, 
    PatientBirthdate = 12, 
    PatientSex = 13, 
    StudyInstance = 14, 
    StudyDate = 15, 
    StudyTime = 16, 
    StudyReferringPhysician = 17, 
    SeriesModality = 18, 
    SeriesId = 19, 
    SeriesNumber = 20, 
    ExifVersion = 21, 
    DateTimeOriginal = 22, 
    DateTimeDigitized = 23, 
    ShutterSpeedValue = 24, 
    Aperture = 25, 
    Brightness = 26, 
    ExposureBias = 27, 
    MaxAperture = 28, 
    SubjectDistance = 29, 
    MeteringMode = 30, 
    LightSource = 31, 
    Flash = 32, 
    FocalLength = 33, 
    ExposureTime = 34, 
    FNumber = 35, 
    MakerNote = 36, 
    UserComment = 37, 
    SubSecTime = 38, 
    SubSecTimeOriginal = 39, 
    SubSecTimeDigitized = 40, 
    GpsVersionId = 41, 
    GpsLatitudeRef = 42, 
    GpsLatitude = 43, 
    GpsLongitudeRef = 44, 
    GpsLongitude = 45, 
    GpsAltitudeRef = 46, 
    GpsAltitude = 47, 
    GpsTimestamp = 48, 
    GpsSatellites = 49, 
    GpsStatus = 50, 
    GpsMeasureMode = 51, 
    GpsDop = 52, 
    GpsSpeedRef = 53, 
    GpsSpeed = 54, 
    GpsTrackRef = 55, 
    GpsTrack = 56, 
    GpsImageDirectionRef = 57, 
    GpsImageDirection = 58, 
    GpsMapDatum = 59, 
    GpsDestinationLatitudeRef = 60, 
    GpsDestinationLatitude = 61, 
    GpsDestinationLongitudeRef = 62, 
    GpsDestinationLongitude = 63, 
    GpsDestinationBearingRef = 64, 
    GpsDestinationBearing = 65, 
    GpsDestinationDistanceRef = 66, 
    GpsDestinationDistance = 67, 
    SupportedFlashPixVersion = 158, 
    ColorSpace = 159, 
    ExposureProgram = 160, 
    SpectralSensitivity = 161, 
    IsoSpeedRatings = 162, 
    OptoElectricCoefficient = 163, 
    RelatedSoundFile = 164, 
    FlashEnergy = 165, 
    SpatialFrequencyResponse = 166, 
    FocalPlaneXResolution = 167, 
    FocalPlaneYResolution = 168, 
    SubjectLocation = 169, 
    ExposureIndex = 170, 
    SensingMethod = 171, 
    FileSource = 172, 
    SceneType = 173, 
    CfaPattern = 174, 
    Title = 175, 
    Disclaimer = 176, 
    Warning = 177, 
    Misc = 178, 
    Jpeg2000Binary = 179, 
    Jpeg2000Latin = 180, 
    IptcFirst = 181, 
    IptcVersion = 181, 
    IptcObjectTypeReference = 182, 
    IptcObjectAttributeReference = 183, 
    IptcObjectName = 184, 
    IptcEditStatus = 185, 
    IptcEditorialUpdate = 186, 
    IptcUrgency = 187, 
    IptcSubjectReference = 188, 
    IptcCategory = 189, 
    IptcSupplementalCategory = 190, 
    IptcFixtureIdentifier = 191, 
    IptcKeywords = 192, 
    IptcContentLocationCode = 193, 
    IptcContentLocationName = 194, 
    IptcReleaseDate = 195, 
    IptcReleaseTime = 196, 
    IptcExpirationDate = 197, 
    IptcExpirationTime = 198, 
    IptcSpecialInstructions = 199, 
    IptcActionAdvised = 200, 
    IptcReferenceService = 201, 
    IptcReferenceDate = 202, 
    IptcReferenceNumber = 203, 
    IptcDateCreated = 204, 
    IptcTimeCreated = 205, 
    IptcDigitalCreationDate = 206, 
    IptcDigitalCreationTime = 207, 
    IptcOriginatingProgram = 208, 
    IptcProgramVersion = 209, 
    IptcObjectCycle = 210, 
    IptcByline = 211, 
    IptcBylineTitle = 212, 
    IptcCity = 213, 
    IptcSubLocation = 214, 
    IptcProvinceState = 215, 
    IptcPrimaryLocationCode = 216, 
    IptcPrimaryLocationName = 217, 
    IptcOriginalTransmissionReference = 218, 
    IptcHeadline = 219, 
    IptcCredit = 220, 
    IptcSource = 221, 
    IptcCopyright = 222, 
    IptcContact = 223, 
    IptcCaption = 224, 
    IptcAuthor = 225, 
    IptcLanguageIdentifier = 226, 
    IptcLast = 226, 
    SubjectArea = 227, 
    CustomRendered = 228, 
    ExposureMode = 229, 
    WhiteBalance = 230, 
    DigitalZoomRatio = 231, 
    FocalLengthIn35MMFilm = 232, 
    SceneCaptureType = 233, 
    GainControl = 234, 
    Contrast = 235, 
    Saturation = 236, 
    Sharpness = 237, 
    DeviceSettingDescription = 238, 
    SubjectDistanceRange = 239, 
    ImageUniqueId = 240, 
    GpsProcessingMethod = 241, 
    GpsAreaInformation = 242, 
    GpsDateStamp = 243, 
    GpsDifferential = 244, 
    FocalPlaneResolutionUnit = 245, 
    Gamma = 246, 
     
 };

public enum class RasterCommentMetadataType

Members

Value

Member

Description

Artist

Person who created the image. (TIFF Comment)

Copyright

DateTime

Date and time (YYYY:MM:DD HH:MM:SS). The field length is 20, counting the NULL terminator. (TIFF Comment)

Description

Description of the image. (TIFF Comment)

HostComputer

Computer and operating system in use. (TIFF Comment)

Make

Manufacturer of the equipment used to create the image. (TIFF Comment)

Model

Model name and number of the equipment. (TIFF Comment)

NameOfDocument

Name of the document from which the image was scanned. (TIFF Comment)

NameOfPage

Page name from which the image was scanned. (TIFF Comment)

Software

Name and version of the software package used to create the image. (TIFF Comment)

PatientName

Patient name (DICOM)

PatientId

Patient ID (DICOM)

PatientBirthdate

Patient birth date (DICOM)

PatientSex

Patient sex (DICOM)

StudyInstance

Study instance ID (DICOM)

StudyDate

Study date (DICOM)

StudyTime

Study time (DICOM)

StudyReferringPhysician

Referring physician (DICOM)

SeriesModality

Series modality (DICOM)

SeriesId

Series ID (DICOM)

SeriesNumber

Series number (DICOM)

ExifVersion

Exif version. LEADTOOLS always writes this value as 0110, meaning version 1.1. Data type: RasterCommentMetadataDataType.Ascii. Length: 4.

DateTimeOriginal

Date and time the original image is captured. The format is YYYY:MM:DD HH:MM:SS. The time is in a 24-hour format, and a blank space is left between the date and the time. Data type: RasterCommentMetadataDataType.Ascii. Length: 20.

DateTimeDigitized

Date and time the file is generated. If the file is generated directly, as with a digital camera, this is the same as the time the original image is captured. Data type: RasterCommentMetadataDataType.Ascii. Length: 20.

ShutterSpeedValue

Shutter speed. The unit of measure is APEX. Data type: RasterCommentMetadataDataType.Rational. Length: 1.

Aperture

Aperture value. This is the ratio of lens aperture for the focal length. The unit of measure is APEX. Data type: RasterCommentMetadataDataType.URational. Length: 1.

Brightness

Brightness value. Data type: RasterCommentMetadataDataType.Rational. Length: 1.

ExposureBias

Exposure bias. This is the value for correcting a biased exposure. The unit of measure is APEX. Data type: RasterCommentMetadataDataType.Rational. Length: 1.

MaxAperture

Minimum lens f-number. Data type: RasterCommentMetadataDataType.URational. Length: 1.

SubjectDistance

Distance from lens to subject (in meters). Data type: RasterCommentMetadataDataType.URational. Length: 1.

MeteringMode

Photometry mode. Possible values are:

0	Unidentified
1	Average
2	Center Weighted Average
3	Spot
4	MultiSpot
5	Pattern
6	Partial
255	Others

Data type: SHORT. Length: 1.

LightSource

Light source. Possible values are:

0	Unidentified
1	Daylight
2	Florescence light
3	Tungsten Lamp
17	Standard light source A
18	Standard light source B
19	Standard light source C
20	D55
21	D65
22	D75
255	Others

Data type: SHORT. Length: 1.

Flash

Flash On/Off. Possible values are 1 for on or 0 for off. Data type: SHORT. Length: 1.

Please refer to the EXIF specification for all possible values for EXIF comments.

FocalLength

Focal length, measured in millimeters. Data type: RasterCommentMetadataDataType.URational. Length: 1.

ExposureTime

Exposure time, expressed as a fraction of a second. Data type: RasterCommentMetadataDataType.URational. Length: 1.

FNumber

The actual lens F stop (ratio of lens aperture to focal length). Data type: RasterCommentMetadataDataType.URational. Length: 1.

MakerNote

Maker note. Data type: RasterCommentMetadataDataType.Ascii. The creator of the file determines the data format.

UserComment

User comment. Data type: RasterCommentMetadataDataType.Ascii. Length: variable. The first eight bytes specify the data format, and the remainder of the comment is in the specified format. The first eight bytes can be any of the following:

41 53 43 49 49 00 00 00	ASCII
4A 49 53 00 00 00 00 00	JIS (Japanese)
00 00 00 00 00 00 00 00	Undefined

SubSecTime

Decimal extension for seconds that are specified in the RasterCommentMetadataType.DateTime field. Data type: RasterCommentMetadataDataType.Ascii. Length: variable.

SubSecTimeOriginal

Decimal extension for seconds that are specified in the RasterCommentMetadataType.DateTimeOriginal field. Data type: RasterCommentMetadataDataType.Ascii. Length: variable.

SubSecTimeDigitized

Decimal extension for seconds that are specified in the RasterCommentMetadataType. DateTimeDigitized field. Data type: RasterCommentMetadataDataType.Ascii. Length: variable.

GpsVersionId

Version number of the GPS image file directory (IFD). The current version is 2.0.0.0. This comment must be included when any GPS comments are used. Unlike the RasterCommentMetadataType.ExifVersion comment, this comment is written in bytes. A version written as 2.0.0.0 is actually 0x02000000 when coded. Data type: BYTE. Length: 4.

GpsLatitudeRef

North or south latitude. Possible values are "N" for north and "S" for south. Data type: RasterCommentMetadataDataType.Ascii. Length: 2.

GpsLatitude

Latitude, expressed as three RasterCommentMetadataDataType.URational values. When expressed in degrees, minutes, and seconds, latitude is written as dd/1,mm/1,ss/1. If degrees and minutes are used as the units, and minutes are written with fractions to two decimal places, then latitude is expressed as dd/1,mmmm/100,0/1. Data type: RasterCommentMetadataDataType.URational. Length: 3.

GpsLongitudeRef

East or west longitude. Possible values are "E" for east and "W" for west. Data type: RasterCommentMetadataDataType.Ascii. Length: 2.

GpsLongitude

The longitude, expressed as three RasterCommentMetadataDataType.URational values. When expressed in degrees, minutes and seconds, longitude is written as ddd/1,mm/1,ss/1. If degrees and minutes are used as the units, and minutes are written with fractions to two decimal places, then longitude is expressed as dd/1,mmmm/100,0/1. Data type: RasterCommentMetadataDataType.URational. Length: 3.

GpsAltitudeRef

Reference altitude. In the current version, sea level is used as the reference, which must be zero. The reference unit is meters. Data type: BYTE. Length: 1.

GpsAltitude

Altitude, in meters, relative to the reference altitude. Data type: RasterCommentMetadataDataType.URational. Length: 1.

GpsTimestamp

Time stamp in UTC (Coordinated Universal Time) time. The time is expressed as three RasterCommentMetadataDataType.URational values, for hours, minutes, and seconds. Data type: RasterCommentMetadataDataType.URational. Length: 3.

GpsSatellites

GPS satellites used for measurement. The coding format is not stipulated. This comment can be used to code information such as the number of satellites, the satellite number, the satellite angle of elevation, its azimuth, and its SNR. If the GPS receiver cannot make a measurement, this comment is NULL. Data type: RasterCommentMetadataDataType.Ascii. Length: variable.

GpsStatus

Status of the GPS receiver at when the image is recorded. Possible values are "A" when measurement in progress and "V" when measurement is interrupted. Data type: RasterCommentMetadataDataType.Ascii. Length: 2.

GpsMeasureMode

GPS measurement mode. A value of "2" denotes two-dimensional measurement, and "3" denotes three-dimensional measurement. Data type: RasterCommentMetadataDataType.Ascii. Length: 2.

GpsDop

DOP (data precision) value. This comment is an HDOP value during two-dimensional measurement and a PDOP value during three-dimensional measurement. Data type: RasterCommentMetadataDataType.URational. Length: 1.

GpsSpeedRef

Unit for measuring speed. Possible values are "K" for kilometers, "M" for miles, and "N" for knots. Data type: RasterCommentMetadataDataType.Ascii. Length: 2.

GpsSpeed

Speed of the GPS receiver. Data type: RasterCommentMetadataDataType.URational. Length: 1.

GpsTrackRef

Reference for direction of movement. Possible values are "T" for a true direction and "M" for a magnetic. Data type: RasterCommentMetadataDataType.Ascii. Length: 2

GpsTrack

Direction of GPS receiver movement. The range of values is 0.00 to 359.00. Data type: RasterCommentMetadataDataType.URational. Length: 1.

GpsImageDirectionRef

Reference for the direction of photography in the recorded image. Possible values are "T" for a true direction and "M" for a magnetic. Data type: RasterCommentMetadataDataType.Ascii. Length: 2.

GpsImageDirection

Direction of photography in the recorded image. The range of values is 0.00 to 359.00. Data type: RasterCommentMetadataDataType.URational. Length: 1.

GpsMapDatum

Geodetic survey data used by the receiver. If the geodetic survey data is restricted to Japan, this tag value is " TOKYO " or "WGS-84". Data type: RasterCommentMetadataDataType.Ascii. Length: variable.

GpsDestinationLatitudeRef

North or south latitude for the destination point. Possible values are "N" for north and "S" for south. Data type: RasterCommentMetadataDataType.Ascii. Length: 2.

GpsDestinationLatitude

Latitude of the destination point. The latitude is expressed as three RasterCommentMetadataDataType.URationalvalues, indicating degrees, minutes and seconds. Data type: RasterCommentMetadataDataType.URational. Length: 3.

GpsDestinationLongitudeRef

East or west longitude for the destination point. Possible values are "E" for east and "W" for west. Data type: RasterCommentMetadataDataType.Ascii. Length: 2.

GpsDestinationLongitude

Longitude of the destination point. The longitude is expressed as three RasterCommentMetadataDataType.URationalvalues, indicating degrees, minutes and seconds. Data type: RasterCommentMetadataDataType.URational. Length: 3.

GpsDestinationBearingRef

Reference for the bearing to the destination point. Possible values are "T" for a true direction and "M" for a magnetic. Data type: RasterCommentMetadataDataType.Ascii. Length: 2.

GpsDestinationBearing

Bearing to the destination point. The range of values is 0.00 to 359.00. Data type: RasterCommentMetadataDataType.URational. Length: 1.

GpsDestinationDistanceRef

Unit for measuring distance to the destination point. Possible values are "K" for kilometers, "M" for miles, and "N" for nautical miles. Data type: RasterCommentMetadataDataType.Ascii. Length: 2.

GpsDestinationDistance

Distance to the destination point. Data type: RasterCommentMetadataDataType.URational. Length: 1.

158

SupportedFlashPixVersion

Supported FlashPix version (Exif 2.0). LEADTOOLS always writes 0100 here. Data type: RasterCommentMetadataDataType. Undefined. Length: 4

159

ColorSpace

Color space (Exif 2.0). Specifies whether the color is calibrated or not. LEADTOOLS always writes this value as 1. Data type: SHORT. Length: 1 Possible values are:

1	sRGB (PC monitor conditions)
0xFFFF	Uncalibrated
Other	reserved

160

ExposureProgram

Exposure program (Exif 2.0) The class of the program used by the camera to set exposure when the picture is taken. Data type: SHORT. Length = 1. Possible values are:

0	Not defined
1	Manual
2	Aperture priority
4	Shutter priority
5	Creative program (biased toward depth of field)
6	Action program (biased toward fast shutter speed)
7	Portrait mode (for closeup photos with the background out of focus)
Other	Reserved

161

SpectralSensitivity

Spectral sensitivity (Exif) - The spectral sensitivity of each channel of the camera used. It is an ASCII string compatible with the standard developed by the ASTM technical committee. Data type: RasterCommentMetadataDataType.Ascii. Length: any

162

IsoSpeedRatings

ISO speed ratings (Exif) - the ISO speed and the ISO Latitude of the camera or input device as specified in ISO 12232 Data type: SHORT. Length: any

163

OptoElectricCoefficient

Optoelectric coefficient (Exif) - Opto-Electric Conversion function specified in ISO 14524. OECF is the relationship between the camera optical input and the image values. Data type: RasterCommentMetadataDataType. Undefined. Length: ANY. This is an array of m rows and n columns.

164

RelatedSoundFile

Related audio file (Exif) - the name of an audio file related to the image data. The name should be 8 ASCII chars + '.' + 3 chars for extension + NULL. Data type: RasterCommentMetadataDataType.Ascii. Length: 13.

165

FlashEnergy

Flash energy (Exif) - the strobe energy at the time the image is captured, as measured in Beam Candle Power Seconds (BPCS) Data type: RasterCommentMetadataDataType.URational. Length: 1

166

SpatialFrequencyResponse

Spatial frequency response (Exif) - 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. Data type: RasterCommentMetadataDataType.Ascii. Length: ANY This is an array of m rows and n columns.

167

FocalPlaneXResolution

Focal plane X Resolution (Exif) - the number of dots per resolution unit on the camera focal plane in the image width (X) direction

168

FocalPlaneYResolution

Focal plane Y Resolution (Exif) - the number of dots per inch on the camera focal plane in the image height (Y) direction

169

SubjectLocation

Subject location (Exif) - the location of the main subject in the scene. The first value is the X column number and the second is the Y row number. Data type: SHORT. Length: 2

170

ExposureIndex

Exposure index (Exif) - the image sensor type on the camera or input device. Data type: SHORT. Length: 1

171

SensingMethod

Sensing method (Exif) - the image sensor type on the camera or input device. Data type: SHORT. Length: 1 Possible values are:

1	Not defined
2	One-chip color area sensor
3	Two-chip color area sensor
4	Three-chip color area sensor
5	Color sequential area sensor
7	Trilinear sensor
8	Color sequential sensor
other	Reserved

172

FileSource

File source (Exif) - the image source. If a digital camera recorded the image, the value will always be 3, to indicate that the image was recorded on a digital camera. Data type: SHORT. Length: 1 Possible values are:

3	Image recorded on a DSC (Digital Still Camera)
Other	Reserved

173

SceneType

Scene type (Exif) - the type of scene. If a DSC recorded the image, this value will always be 1, indicating that the image was directly photographed. Data type: RasterCommentMetadataDataType.Ascii. Length: 1 Possible values are:

1	A directly photographed image
Other	Reserved

174

CfaPattern

CFA Pattern (Exif) - the color filter array (CFA) geometric pattern of the image sensor when a one-chip color sensor was applied. It does not apply to any other sensing methods. Data type: RasterCommentMetadataDataType. Undefined. Length: ANY This is an array m x n (horz x vertical), where the pattern is repeated every m pixels on the horizontal and n pixels on the vertical.

175

Title

Title of the image.

176

Disclaimer

String containing the disclaimer of the software used to create the image.

177

Warning

Warning statement associated with the software that created the image.

178

Misc

Miscellaneous information.

179

Jpeg2000Binary

JPEG 2000 binary comment.

180

Jpeg2000Latin

JPEG 2000 Latin comment.

181

IptcFirst

The first IPTC comment To get all IPTC comments, use the comment type constant as a loop counter. The first constant is RasterCommentMetadataType.IptcFirst and the last is RasterCommentMetadataType.IptcLast.

181

IptcVersion

2:0, the version of IPTC comments (read-only). Non-repeatable, (min=2 bytes, max=2). This is the only comment that is binary. The first byte is the lower version number (usually 0) and the second byte is the high version number (the current version is 4 - binary 4, not ascii '4'). LEADTOOLS writes 4 here.

182

IptcObjectTypeReference

2:3, Object type reference. Non repeatable. Length = 3..67.

183

IptcObjectAttributeReference

2:4, Object Attribute Reference. Repeatable. Length = 4..68.

184

IptcObjectName

2:5, Object name. Non repeatable. Length = 1..64.

185

IptcEditStatus

2:7, Edit status. Non repeatable. Length = 1..64.

186

IptcEditorialUpdate

2:8, Editorial update. Non repeatable. Length = 2..2.

187

IptcUrgency

2:10, Urgency. Non repeatable. '1' is most urgent, '5' = Normal, '8' is least urgent. Length = 1..1.

188

IptcSubjectReference

2:12, Subject reference. Repeatable. Length = 13..236.

189

IptcCategory

2:15, Category. Non repeatable. Length = 1..3.

190

IptcSupplementalCategory

2:20, Supplemental category. Repeatable. Length = 1..32.

191

IptcFixtureIdentifier

2:22, Fixture identifier. Non repeatable. Length = 1..32.

192

IptcKeywords

2:25, Keywords. Repeatable. Length = 1..64.

193

IptcContentLocationCode

2:26, Content location code. Repeatable. Length = 3..3.

194

IptcContentLocationName

2:27, Content location name. Repeatable. Length = 1..64.

195

IptcReleaseDate

2:30, Release date. Non repeatable. Length = 8..8.

196

IptcReleaseTime

2:35, Release time. Non repeatable. Length = 11..11.

197

IptcExpirationDate

2:37, Expiration date. Non repeatable. Length = 8..8.

198

IptcExpirationTime

2:38, Expiration time. Non repeatable. Length = 11..11.

199

IptcSpecialInstructions

2:40, Special instructions. Non repeatable. Length = 1..256.

200

IptcActionAdvised

2:42, Action advised. Non repeatable. Length = 2..2.

201

IptcReferenceService

2:45, Reference service. Repeatable. Length = 1..10.

202

IptcReferenceDate

2:47, Reference date. Repeatable. Length = 8..8.

203

IptcReferenceNumber

2:50, Reference number. Repeatable. Length = 8..8.

204

IptcDateCreated

2:55, Date created. Non repeatable. Length = 8..8.

205

IptcTimeCreated

2:60, Time created. Non repeatable. Length = 11..11.

206

IptcDigitalCreationDate

2:62, Digital creation date. Non repeatable. Length = 8..8.

207

IptcDigitalCreationTime

2:63, Digital creation time. Non repeatable. Length = 11..11.

208

IptcOriginatingProgram

2:65, Originating program. Non repeatable. Length = 1..32.

209

IptcProgramVersion

2:70, Program version. Non repeatable. Length = 1..10.

210

IptcObjectCycle

2:75, Object cycle. Non repeatable. Length = 1..1.

211

IptcByline

2:80, By-line. Repeatable. Length = 1..32.

212

IptcBylineTitle

2:85, By-line title. Repeatable. Length = 1..32.

213

IptcCity

2:90, City Non repeatable. Length = 1..32.

214

IptcSubLocation

2:92, Sub-location. Non repeatable. Length = 1..32.

215

IptcProvinceState

2:95, Province/State. Non repeatable. Length = 1..32.

216

IptcPrimaryLocationCode

2:100, Country/Primary location code. Non repeatable. Length = 3..3.

217

IptcPrimaryLocationName

2:101, Country/Primary location name. Non repeatable. Length = 1..64.

218

IptcOriginalTransmissionReference

2:103, Original transmission reference. Non repeatable. Length = 1..32.

219

IptcHeadline

2:105, Headline. Non repeatable. Length = 1..256.

220

IptcCredit

2:110, Credit. Non repeatable. Length = 1..32.

221

IptcSource

2:115, Source. Non repeatable. Length = 1..32.

222

IptcCopyright

2:116, Copyright Notice. Non repeatable. Length = 1..128.

223

IptcContact

2:118, Contact. Repeatable. Length = 1..128.

224

IptcCaption

2:120, Caption/Abstract. Non repeatable. Length = 1..2000.

225

IptcAuthor

2:122, Writer/Editor. Repeatable. Length = 1..32.

226

IptcLanguageIdentifier

2:135, Language identifier. Non repeatable. Length = 2..3.

226

IptcLast

The last IPTC comment.

227

SubjectArea

Location and area of the main subject in the overall scene. Data type: SHORT. Count: 2 (Location of the subject is given in X, Y coordinates), 3 (Area of the main subject is given as a circle, X, Y, D, where X and Y are the center coordinates and D is the diameter.) and 4 (Area of the main subject is given as a rectangle, X, Y, W, H, where X and Y are the center coordinates, W is the width or the rectangle and H is the height of the rectangle.).

228

CustomRendered

Use of special processing on image data, such as rendering geared toward output. When special processing is performed, the reader is expected to disable or minimize any further processing. Data type: SHORT; Count: 1; Possible Values: 0 ( Normal process), 1 (Custom process), Other (Reserved). Default: 0;

229

ExposureMode

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. Tag: 41986; Data type: SHORT; Count: 1; Possible values are: 0 (Auto exposure), 1 (Manual exposure), 2 (Auto-bracket), Other (Reserved); Default: none.

230

WhiteBalance

White balance mode set when the image was shot. Data type: SHORT; Count: 1; Possible values are: 0 (Auto white balance), 1 (Manual white balance), Other (Reserved); Default: none.

231

DigitalZoomRatio

Digital zoom ratio set when the image was shot. If the numerator of the recorded value is 0, the digital zoom was not used. Data type: RasterCommentMetadataDataType.URational; Count: 1; Default: none.

232

FocalLengthIn35MMFilm

Equivalent focal length, assuming a 35mm film camera, in mm. A value of 0 means the focal length is unknown. Note that this comment is different from the RasterCommentMetadataType.FocalLength comment. Data type: SHORT; Count: 1; Default: none.

233

SceneCaptureType

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 RasterCommentMetadataType.SceneType comment. Data type: SHORT; Count: 1; Possible values are: 0 (Standard), 1 (Landscape), 2 (Portrait), 3 (Night scene), Other (Reserved); Default: 0.

234

GainControl

Degree of overall image gain adjustment. Data type: SHORT; Count: 1; Possible values are: 0 (None), 1 (Low gain up), 2 (High gain up), 3 (Low gain down), 4 (High gain down), Other (Reserved); Default: none.

235

Contrast

Direction of contrast processing applied by the camera when the image was shot. Data type: SHORT; Count: 1; Possible values are: 0 ( Normal), 1 (Soft), 2 (Hard), Other (Reserved); Default: 0.

236

Saturation

Direction of saturation processing applied by the camera when the image was shot. Data type: SHORT; Count: 1; Possible values are: 0 ( Normal), 1 (Low saturation), 2 (High saturation), Other (Reserved); Default: 0.

237

Sharpness

Direction of sharpness processing applied by the camera when the image was shot. Data type: SHORT; Count: 1; Possible values are: 0 ( Normal), 1 (Soft), 2 (Hard), Other (Reserved); Default: 0.

238

DeviceSettingDescription

Information on the picture-taking conditions of a particular camera model. Used only to indicate the picture-taking conditions in the reader. Data type: RasterCommentMetadataDataType.Ascii; Count: Any; The data is recorded in Unicode using SHORT fro the number of display rows and columns and RasterCommentMetadataDataType.Ascii for the camera settings. The Unicode (UCS -2) string including Signature is NULL terminated. The specifics of the Unicode string are as given in ISO/IEC 10464-1. Default: none.

239

SubjectDistanceRange

Distance to the subject. Data type: SHORT; Count: 1; Possible values are: 0 (Unknown), 1 (Macro), 2 (Close view), 3 (Distant view), Other (Reserved); Default: none.

240

ImageUniqueId

Identifier assigned uniquely to each image. It is recorded as an ASCII string equivalent to hexadecimal notation and 128-bit fixed length. Tag: 42016; Data type: RasterCommentMetadataDataType.Ascii; Count: 33; Default: none

241

GpsProcessingMethod

Processing method. Data type: RasterCommentMetadataDataType.Byte. Length: Any.

242

GpsAreaInformation

Area. Data type: RasterCommentMetadataDataType.Byte. Length: Any.

243

GpsDateStamp

Date. Data type: SZ. Length: 11.

244

GpsDifferential

Differential. Data type: Short. Length: 1.

245

FocalPlaneResolutionUnit

Focal plane resolution unit (Exif). This is the resolution unit for the RasterCommentMetadataType.FocalPlaneXResolution and RasterCommentMetadataType.FocalPlaneYResolution comments.

246

Gamma

Indicates the value of coefficient gamma. The formula of transfer function used for image reproduction is expressed as follows:
(Reproduced value) = (Input value) ^ (gamma).
(The Reproduced and Input values are normalized to be between 0 and 1). The gamma must be positive. Tag: 42240; Data Type: RasterCommentMetadataDataType.Rational; Count: 1; Default: none.

Remarks

When reading or updating Exif comments, you must specify the comment type. Comment fields are constrained by their Exif data type.

All Exif files (TIFF and JPG) can contain the designated TIFF comments. Each TIFF comment field can contain a character string. The maximum field size is 32K, except for the date-time field, which is always 20.

NOTE: Please refer to the EXIF specification for all possible values for EXIF comments.

For more information, refer to GIF File Comments.

For more information, refer to PNG File Comments.

For more information, refer to TIFF File Comments.

Requirements

Target Platforms

Reference

Leadtools Namespace

Help Version 19.0.2017.10.27

Leadtools Assembly

Introduction

Getting Started

Namespaces

Leadtools Namespace

Leadtools.ImageProcessing Namespace

Assemblies