Extract a single band from a multiple band raster

Summary

A raster with multiple bands contains multiple spatially coincident matrices of cell values representing the same spatial area. Each band consists of an array of pixels (cells), and each pixel has a value. An example of a multiple band raster is a true color orthophoto in which there are three bands, each representing red, green, or blue light.

The instructions provided describe how to extract a single band from a multiple band raster.

Procedure

1. In the Catalog window, expand the composite image layer to view the raster bands.
2. Right-click the desired band, and click Create Layer.

3. Specify the name and location of the output layer, and click Save. The single band is saved as a layer file.

1. From the Catalog window, drag the single band to the map.
2. Right-click the raster layer in the Table Of Contents and export the single band to a new raster.

Note:
The new raster layer created is temporary, hence export the layer to a new permanent raster. Selecting more than one band combines the bands into a single raster layer.

1. In the Catalog window, navigate to System Toolboxes > Data Management Tools > Layers and Table Views > Make Raster Layer.
2. Select an input raster.
3. Specify the name of the output raster layer.
4. Click the Bands (optional) drop-down arrow and select a band to create the raster layer.
5. Click OK.

Note:
This extracts all individual bands to a single raster for each band.

1. In the Catalog window, navigate to System Toolboxes > Data Management Tools > Raster > Raster Dataset > Copy Raster.
2. Select an input raster.
3. Specify the name of the output raster dataset.
4. Click OK.

Note:
The new raster layer created is permanent. Selecting more than one band combines the bands into a single raster layer.

1. In the Catalog window, navigate to System Toolboxes > Data Management Tools > Raster > Raster Processing > Composite Bands.
2. Click the Browse button to select a raster image.
3. Double-click the raster image to view the individual bands.

4. Select the desired band, and click Add.

5. Click OK.