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Feature Representation

In addition to the generic FME feature attributes that FME Workbench adds to all features (see About Feature Attributes), this format adds the format-specific attributes described in this section.

TIFF features specify a matrix of x, y, and z coordinates. For each raster, there will only be a single feature returned.

Attribute Name	Reader or Writer Attribute	Contents
tiff_type		This will always be `tiff_raster`.
tiff_area_or_point	Reader attribute	Indicates whether each raster pixel represents an area or point. The value can be Area or Point.
tiff_subdataset_name		When this is present on a feature, the feature is a subdataset. This attribute shows the name of the subdataset.
tiff_subdataset_description		When this is present on a feature, the feature is a subdataset. This attribute gives a description of the subdataset.
tiff_documentname		Represents the name of the document from which this image was scanned.
tiff_imagedescription		Represents a string that describes the subject of the image.
tiff_datetime		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.
tiff_software		Represents the name and version number of the software package(s) used to create the image.
tiff_resolutionunit		The unit of measurement for `tiff_xresolution` and `tiff_yresolution`. The possible values are 1, which means that there is no absolute unit of measurement and is usually used for images, 2, which means inches, and 3, which means centimeters.
tiff_xresolution		Represents the number of pixels per `tiff_resolutionunit` in the x direction.
tiff_yresolution		Represents the number of pixels per `tiff_resolutionunit` in the y direction.
tiff_artist		Represents the person who created the image. Some older TIFF files used this tag for storing copyright information.
tiff_copyright		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.”
tiff_hostcomputer		It represents the computer and/or operating system in use at the time of image creation.
tiff_maxsamplevalue		The maximum data value used.
tiff_minsamplevalue		The minimum data value used.
tiff_world_file_ generation	Writer attribute	Enables or disables the generation of an Esri world file along with the output image. The value can be yes or no (case-sensitive). The default is yes.
tiff_tab_file_generation	Writer attribute	Enables or disables the generation of a TAB file along with the output image. The value can be yes or no. The default value is yes.
tiff_create_tiled_files	Writer attribute	Enables or disables the creations of tiled TIFF images. By default, it is disabled (the value no), and stripped TIFF images are created. Note that tiled TIFFs are not as widely supported by other applications as stripped TIFFs. The value can be yes or no (case-sensitive).
tiff_tile_size_x	Writer attribute	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.
tiff_tile_size_y	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.
tiff_compression_method		The compression method used in the file. The available options are: jpeg lzw 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.
tiff_jpeg_compression_ level	Writer attribute	Sets the quality of the compression if jpeg is the value for `geotiff_compression_method`. The range of the value is from 0 (best quality) to 100 (worst quality). The default value is 25.
tiff_number_of_bits_per_cell		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. Note that 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.
tiff_enable_bigtiff		It allows the writer to produce a file larger than 4GB when the value is set to no. If the value is set to no or left empty, the BigTIFF support is not enabled.
tiff_interleaving_type		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 BIP. Note that 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).
tiff_byte_order	Writer attribute	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.
tiff_write_minmax_tifftags	Writer attribute	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. Note that if this is set to Yes, the calculated values will override any explicit values specified for tiff_minsamplevalue and tiff_maxsamplevalue. This is a writer attribute.
tiff_photometric_interpretation		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. MinIsWhite: The minimum value of the raster should be displayed as white. YCbCr: The values should be stored using the YCbCr color space. This option is only valid when using JPEG compression.