GeoTIFF Feature Representation

Indicates whether each raster pixel represents an area or point. The value can be Area or Point.

The byte order of the file. When reading, values will be either MSB or LSB. When writing, valid values are MSB, LSB, and machine (meaning the native byte order of the machine running FME).

The default value when writing is machine.

Specifies whether the writer should calculate the MinSampleValue and MaxSampleValue TIFF tags values from the input raster. Calculating the min/max values may increase translation time.

This is a writer attribute.

The compression used in the file. The available options are:

• jpeg
• deflate
• lzw
• zstd
• pack-bits
• ccitt-rle (CCITT modified Huffman run length encoding)
• ccitt-fax3 (CCITT Group 3 fax encoding)
• ccitt-fax4 (CCITT Group 4 fax encoding)
• none

If not specified, the default value is none.

Enables or disables the creations of tiled GeoTIFF images.

The value can be yes or no (case-sensitive). By default, it is disabled (the value no), and stripped GeoTIFF images are created.

This is a writer attribute.

Allows the writer to produce a file larger than 4GB when the value is set to yes. If the value is set to no or left empty, the BigTIFF support is not enabled.

Represents the lens aperture. The unit is the APEX value.

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.

Represents the color space information tag is always recorded as the color space specifier.

sRGB (=1) is usually 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) is set. Image data recorded as uncalibrated can be treated as sRGB when it is converted to Flashpix.

Value:

• 1 – sRGB
• FFFF – uncalibrated
• Other – reserved

Represents information specific to compressed data.

The channels of each component are arranged in order from the 1st component to the 4th. For uncompressed data the data arrangement is given in the photometric interpretation tag. However, since photometric interpretation 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.

Value:

• 0 – does not exist
• 1 – Y
• 2 – Cb
• 3 – Cr
• 4 – R
• 5 – G
• 6 – B
• Other – reserved

The default is 4 5 6 0 (if RGB uncompressed) or 1 2 3 0 (other cases).

Represents information specific to compressed data. The compression mode used for a compressed image is indicated in unit bits per pixel.

Indicates the direction of contrast processing applied by the camera when the image was shot.

Value:

• 0 – Normal
• 1 – Soft
• 2 – Hard

Represents 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.

Value:

• 0 – normal process
• 1 – custom process
• Other – reserved

Default: 0

Represents the date and time of image creation.

In this standard, it is the date and time the file was changed. 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.

When the date and time are unknown, all the character spaces except colons (“:”) may be filled with blank characters, or else the interoperability field may be filled with blank characters. The character's string length is 20 bytes including a null character for termination.

When the field is left blank, it is treated as unknown.

Represents the date and time when the image was stored as digital data.

If, for example, an image was captured by DSC and at the same time the file was recorded, then the geotiff_exif_datetimeoriginal and geotiff_exif_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.

When the date and time are unknown, all the character spaces except colons (“:”) may be filled with blank characters, or else the interoperability field may be filled with blank characters.

The characters string length is 20 bytes including a null character for termination.

When the field is left blank, it is treated as unknown.

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

For a DSC the date and time the picture was taken are recorded. The format YYYY:MM:DD HH:MM:SS with time shown in 24-hour format, and the date and time separated by one blank character.

When the date and time are unknown, all the character spaces except colons (“:”) may be filled with blank characters.

The character string length is 20 bytes including a null character for termination.

When the field is left blank, it is treated as unknown.

Represents 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.

Represents the version of this standard supported.

Non-existence of this field is taken to mean non-conformance to the standard. Conformance to this standard is indicated by recording 0220 as 4-byte ASCII.

Since the type is UNDEFINED, there is no null character for termination.

Represents the exposure bias.

Unit: APEX value (usually in the range of -99.99 to 99.99)

Represents 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.

Value:

• 0 – auto exposure
• 1 – manual exposure
• 2 – auto bracket
• Other – reserved

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

Value:

• 0 – Not defined
• 1 – Manual
• 2 – Normal program
• 3 – 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)
• 8 – Landscape mode (for landscape photos with the background in focus)

Represents the exposure time of the image.

Represents the image source.

If a DSC recorded the image, this attribute value of this tag always be set to 3, indicating that the image was recorded on a DSC.

Value:

• 3 – DSC
• Other – reserved

Default: 3

Represents the status of flash when the images was shot.

Bit 0 indicates the flash firing status; bits 1 and 2 indicate the flash return status; bits 3 and 4 indicate the flash mode; bit 5 indicates whether the flash function is present; and bit 6 indicates “red eye” mode.

Value:

• Bit 0: 0 – flash did not fire
• Bit 0: 1 – flash fired
• Bit 1 and 2: 00 – no strobe return detection function
• Bit 1 and 2: 01 – reserved
• Bit 1 and 2: 10 – strobe return light not detected
• Bit 1 and 2: 11 – strobe return light detected
• Bit 3 and 4: 00 – unknown
• Bit 3 and 4: 01 – compulsory flash firing
• Bit 3 and 4: 10 – compulsory flash suppression
• Bit 3 and 4: 11 – auto mode
• Bit 5: 0 – flash function present
• Bit 5: 1 – no flash function
• Bit 6: 0 – no red-eye reduction mode or unknown
• Bit 6: 1 – red-eye reduction supported

Represents the Flashpix format version supported by a FPXR file.

If the FPXR function supports Flashpix format ver. 1.0, this is indicated similarly to geotiff_exif_exifversion by recording 0100 as 4-byte ASCII.

Value:

• 0100 – flashpix format version 1.0
• Other – reserved

Default: 0100

Represents the f number of the recording equipment.

Represents the actual focal length of the lens, in mm.

Conversion is not made to the focal length of a 35 mm film camera.

This indicates the equivalent focal length assuming a 35mm film camera, in mm.

A value of 0 means the focal length is unknown.

Represents the unit for measuring geotiff_exif_focalplanexresolution and geotiff_exif_focalplaneyresolution.

This value is the same as the geotiff_exif_resolutionunit.

Represents the number of pixels in the image width (x) direction per geotiff_exif_focalplaneresolutionunit on the camera focal plane.

Represents the number of pixels in the image height (y) direction per geotiff_exif_focalplaneresolutionunit on the camera focal plane.

The degree of overall image gain adjustment.

Represents the altitude, based on the reference.

Unit: meters

This indicates the altitude used as the reference altitude.

Value:

• 0 – above sea level
• 1 – below sea level

Represents the name of the GPS area.

Represents the date relative to UTC (Coordinated Universal Time).

Format: YYYY:MM:DD

Represents the bearing to the destination point.

Value: Range from 0.00 to 359.99

Represents the reference used for giving the bearing to the destination point.

Value:

• T – true direction
• M – magnetic direction

Represents the distance to the destination point.

Represents the unit used to express the distance to the destination point.

Value:

• K – kilometers per hour
• M – miles per hour
• N – knots

Represents the latitude of the destination point.

It is expressed as three numbers giving the degrees, minutes, and seconds, respectively.

This indicates whether the latitude of the destination point is north or south.

Value:

• N – north latitude
• S – south latitude

Represents the longitude of the destination point.

It is expressed as three numbers giving the degrees, minutes, and seconds, respectively.

This indicates whether the longitude of the destination point is east or west.

Value:

• E – east longitude
• W – west longitude

Represents whether differential correction is applied to the GPS receiver.

Value:

• 0 – measurement without differential correction
• 1 – differential correction applied

Represents the GPS DOP (data degree of precision).

An HDOP value is written during two-dimensional measurement, and PDOP during three-dimensional measurement.

Represents the direction of the image when it was captured.

Value: Range from 0.00 to 359.99

Represents the reference for giving the direction of the image when it is captured.

Value:

• T – true direction
• M – magnetic direction

Represents the latitude. Used when geotagging photos.

Values:

This attribute is expressed as three numbers in the following order: degrees, minutes, and seconds (DMS).

For example:

122 50 32.36280000000261

indicates

122°, 50', 32.36280000000261"

This indicates whether the latitude is north or south. Used when geotagging photos.

Value:

• N – north latitude
• S – south latitude

Represents the longitude. Used when geotagging photos.

Values:

This attribute is expressed as three numbers in the following order: degrees, minutes, and seconds (DMS). For example:

122 50 32.36280000000261

indicates

122°, 50', 32.36280000000261"

This indicates whether the longitude is east or west. Used when geotagging photos.

Value:

• E – east longitude
• W – west longitude

Represents the geodetic survey data used by the GPS receiver.

Represents the GPS measurement mode.

Value:

• 2 – 2-dimensional measurement
• 3 – 3-dimensional measurement

Represents the name of the method used for location finding.

Represents the 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.

Represents the speed of GPS receiver movement.

Represents the unit used to express the GPS receiver speed of movement.

Value:

• K – kilometers per hour
• M – miles per hour
• N – knots

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

Value:

• A – measurement is in progress
• V – measurement is Interoperability

Represents the time as UTC (Coordinated Universal Time).

It is expressed as three numbers giving the hour, minute, and second.

Represents the direction of GPS receiver movement.

Value: Range from 0.00 to 359.99.

Represents the reference for giving the direction of GPS receiver movement.

Value:

• T – true direction
• M – magnetic direction

Represents the version of the GPS Image File Folder.

The version is given as byte sequence 2, 2, 0, 0 to indicate version 2.2.

The kind of light source.

• 0 – Unknown
• 1 – Daylight
• 2 – Fluorescent
• 3 – Tungsten (incandescent light)
• 4 – Flash
• 9 – Fine weather
• 10 – Cloudy weather
• 11 – Shade
• 12 – Daylight fluorescent (D 5700 – 7100K)
• 13 – Day white fluorescent (N 4600 – 5400K)
• 14 – Cool white fluorescent (W 3900 – 4500K)
• 15 – White fluorescent (WW 3200 – 3700K)
• 17 – Standard light A
• 18 – Standard light B
• 19 – Standard light C
• 20 – D55
• 21 – D65
• 22 – D75
• 23 – D50
• 24 – ISO studio tungsten
• 255 – Other light source

Represents 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.

Represents 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.

Represents the smallest F number of the lens.

Units: APEX value (usually in the range of 00.00 to 99.99, but it is not limited to this range)

Represents the metering mode. The value can be:

• 0 – unknown (default)
• 1 – average
• 2 – center weighted average
• 3 – spot
• 4 – multispot
• 5 – pattern
• 6 – partial
• Other – reserved
• 255 – other

Represents the model or model number of the equipment.

This is the model name of 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.

Represents the image orientation viewed in terms of rows and columns.

Represents information specific to compressed data.

When a compressed file is recorded, the valid width of the meaningful image shall be recorded in this attribute, whether or not there is padding data or a restart marker.

This attribute should not exist in an uncompressed file.

Represents information specific to compressed data.

When a compressed file is recorded, the valid height of the meaningful image shall be recorded in this attribute, whether or not there is padding data or restart marker.

This attribute should not exist in an uncompressed file.

The chromaticity of the three primary colors of the image.

This tag is not usually necessary, since color space is specified in the color space information tag.

Represents the unit of x and y resolution.

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

Value:

• 0 – Normal
• 1 – Low saturation
• 2 – High saturation

Represents 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 attribute.

Value:

• 0 – standard (default)
• 1 – landscape
• 2 – portrait
• 3 – night scene
• Other – reserved

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

Value:

• 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 linear sensor
• Other – reserved

Indicates the direction of sharpness processing applied by the camera when the image was shot.

Value:

• 0 – Normal
• 1 – Soft
• 2 – Hard

Represents the shutter speed.

Unit: APEX (Additive System of Photographic Exposure) setting

Records the name and version of the software or firmware of the camera or image input device used to generate the image.

The distance to the subject, such as Macro, Close View, or Distant View.

Used to record fractions of seconds for the DateTime tag.

Used to record fractions of seconds for the DateTimeDigitized tag.

Used to record fractions of seconds for the DateTimeOriginal tag.

Represents a tag for Exif users to write keywords or comments on the image.

Represents the white balance mode set when the image was shot.

Value:

• 0 – auto white balance
• 1 – manual white balance
• Other – reserved

The chromaticity of the white point of the image.

This tag is not usually necessary, since color space is specified in the color space information tag.

Author tag used by Windows.

Comment tag used by Windows.

Keywords tag used by Windows.

Subject tag used by Windows.

Title tag used by Windows.

Represents the number of pixels per geotiff_exif_resolutionunit in the geotiff_exif_imagewidth direction.

When the image resolution is unknown, 72 dpi is designated.

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

Represents 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 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 default is used.

Represents the number of pixels per geotiff_exif_resolutionunit in the geotiff_exif_imagelength direction.

The same value as geotiff_exif_xresolution is designated.

The organization of the bands in the file. Acceptable values are BIP, which is band interleaved by pixel, and BSQ, which is band sequential. BIP may be less efficient for reading and writing by FME, but is more widely supported by other applications. If not specified, the default interleaving is BSQ.

This option corresponds to the PlanarConfiguration TIFF tag. BIP corresponds to a value of 1 (Chunky), and BSQ corresponds to a value of 2 (Planar).

Sets the quality of the compression if jpeg is the value for geotiff_compression_method.

Range:

• 0 (best quality) to
• 100 (worst quality)

Default:

• 25

This is a writer attribute.

The number of bits per cell in the file, if it is not a power of 2 (i.e. 8, 16, or 32). Valid values are 1 - 32. If the bit depth is a power of 2, this value does not need to be specified.

Previously the string "8-or-above" was equivalent to leaving this value blank.

When this value is specified, the interpretation of the input raster bands must be the minimum power of 2 above the requested bit depth. For example, to write 7-bit data, the interpretation must be one of UINT8, GRAY8, RED8, GREEN8, BLUE8, or ALPHA8. Please see the writer overview above for more details on the use of this parameter when writing.

The color space of the image data. The available options are:

• Auto: The photometric interpretation will be implicitly determined from the FME interpretation.
• MinIsBlack: The minimum value of the raster should be displayed as black. This option applies only to numeric rasters.
• MinIsWhite: The minimum value of the raster should be displayed as white. This option applies only to numeric rasters.
• YCbCr: The values should be stored using the YCbCr color space. This option is only valid when using JPEG compression.

The number of rows and columns in each pyramid level. Note that pyramid level 0 indicates the original raster data, whereas level 1 indicates the first reduced-resolution pyramid level.

The number of generated pyramid levels. Note that this does not include the original raster data.

When this is present on a feature, the feature is a subdataset. This attribute gives a description of the subdataset.

When this is present on a feature, the feature is a subdataset. This attribute shows the name of the subdataset.

Enables or disables the generation of a TAB file along with the output image.

Value:

• yes (default)
• no

This is a writer attribute.

Represents the person who created the image. Some older Tiff files used this tag for storing Copyright information.

Security Classification.

This is a private TIFF tag used by the National Geospatial-Intelligence Agency (NGA).

Commercial Image ID.

This is a private TIFF tag used by the NGA.

Represents the copyright notice of the person or organization that claims the copyright to the image. The complete copyright statement should be listed in this field including any dates and statements of claims.

For example, “Copyright, John Smith, 19xx. All rights reserved.”

Country Code.

This is a private TIFF tag used by the NGA.

Represents a date and time of image creation.

When writing, the string must have the following format to be accepted: “YYYYMMDDHHMMSS”, without any separator or delimiter.

Hours range from 0 to 23.

Represents the name of the document from which this image was scanned.

Represents the computer and/or operating system in use at the time of image creation.

Represents a string that describes the subject of the image.

The maximum data value used.

The minimum data value used.

Source image creation date.

This is a private TIFF tag used by the NGA.

Source image creation time.

This is a private TIFF tag used by the NGA.

The unit of measurement for geotiff_tifftag_xresolution and geotiff_tifftag_yresolution.

The possible values are:

• 1 – there is no absolute unit of measurement and is usually used for images
• 2 – inches
• 3 – centimeters

Security Indicator Code.

This is a private TIFF tag used by the NGA.

Represents the name and version number of the software package(s) used to create the image.

Represents the number of pixels per geotiff_tifftag_resolutionunit in the x direction.

Represents the number of pixels per geotiff_tifftag_resolutionunit in the y direction.

Specifies the number of columns in a tile.

This option only applies when creating a tiled file; strips are required to be the full width of the raster.

This value is required to be a multiple of 16. If no value is specified, this parameter will be determined from the tile size of the input raster.

This is a writer attribute.

Specifies the number of rows in a tile or strip. If no value is specified, this parameter will be determined from the tile size of the input raster.

Note that other options may impact this value:

• If creating a tiled file, this must be a multiple of 16.
• If applying JPEG compression, this must be a multiple of 8.
• If applying JPEG compression with a photometric interpretation of YCbCr, this must be a multiple of 16.

This is a writer attribute.

Enables or disables the generation of an Esri world file along with the output image.

Value (case-sensitive):

• yes
• no (default)

This is a writer attribute.