TIFF Feature Representation
In addition to the generic FME feature attributes that FME Workbench adds to all features (see About Feature Type Attributes), this format also adds format-specific attributes (Format Attributes).
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_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 |
Represents the number of pixels per |
|
tiff_yresolution |
Represents the number of pixels per |
|
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_pyramid_num_levels | The number of generated pyramid levels (reader). Note that this does not include the original raster data. | |
tiff_pyramid_level{}.num_rows tiff_pyramid_level{}.num_columns |
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. |