Removes selected palette(s) from raster features.

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Typical Uses

  • Removing palettes from rasters to meet format or processing requirements.

How does it work?

The RasterPaletteRemover receives raster features and removes any selected palettes.

To select specific bands or palettes, use the RasterSelector prior to the RasterPaletteRemover.

Cells are unaffected, retaining their original values.

If the source band has no palettes, the raster remains unchanged.


Usage Notes

  • To remove a palette and convert the palette values to individual band values, use the RasterPaletteResolver. For example, a palette containing RGB values will be resolved to three bands - red, green, and blue - with the corresponding palette colors assigned to the cells on each band.
  • To extract a palette as a string and assign it to an attribute, use the RasterPaletteExtractor.

Choosing a Raster Transformer

FME has an extensive selection of transformers for working with raster data. They can be generally categorized as working with whole rasters, bands, cells or palettes, and those designed for workflow control or combining raster with vector data.

For information on raster geometry and properties, see Rasters (IFMERaster).


Input Ports

Output Ports


This transformer has no parameters.

Editing Transformer Parameters

Using a set of menu options, transformer parameters can be assigned by referencing other elements in the workspace. More advanced functions, such as an advanced editor and an arithmetic editor, are also available in some transformers. To access a menu of these options, click beside the applicable parameter. For more information, see Transformer Parameter Menu Options.

Defining Values

There are several ways to define a value for use in a Transformer. The simplest is to simply type in a value or string, which can include functions of various types such as attribute references, math and string functions, and workspace parameters. There are a number of tools and shortcuts that can assist in constructing values, generally available from the drop-down context menu adjacent to the value field.

Dialog Options - Tables

Transformers with table-style parameters have additional tools for populating and manipulating values.


Processing Behavior


Feature Holding


Dependencies None

FME Community

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Examples may contain information licensed under the Open Government Licence – Vancouver and/or the Open Government Licence – Canada.