Separates bands or unique band and palette combinations, and outputs either individual raster features or a single new raster feature containing all combinations.

Jump to Configuration

Typical Uses

  • Isolating bands or palettes to meet format or processing requirements.

How does it work?

The RasterBandSeparator receives raster features and separates their bands and palettes into individual output raster features.

Raster features may be split by band, band and palette, or palette.

Separating by Band Only will produce multiple output features, one for each band.

Separating by Band and Palette will also produce multiple output features, one for every unique band and palette combination.

Separating by Palette Only will produce a single output feature per input feature, containing bands for every unique band and palette combination.

Attributes may be created to record which raster, band, and/or palette from which the output feature originated.

The order of the input features and their bands and palettes will determine the order of the output features. A Sorter transformer may be used to set the order in which the features are processed.

This transformer is unaffected by raster band and palette selection.


Usage Notes

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


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
Aliases RasterBandSplitter
History This transformer was previously known as the RasterBandSplitter.

FME Community

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