Executing the Iso Cluster Unsupervised Classification tool

Available with Spatial Analyst license.

The Iso Cluster Unsupervised Classification tool automatically finds the clusters in an image and outputs a classified image. This tool is based on the Iso Cluster tool. The Iso Cluster tool only outputs a signature file, while the Iso Cluster Unsupervised Classification tool outputs a signature file and a classified image.

The following are the steps to execute the Iso Cluster Unsupervised Classification tool:

1. On the Image Classification toolbar, click Classification > Iso Cluster Unsupervised Classification. The Iso Cluster Unsupervised Classification tool is opened.
2. In the tool dialog box, specify values for Input raster bands, Number of classes, and Output classified raster. You may accept default values for other parameters.
3. Click OK to run the tool.

The output classified raster will be automatically added to ArcMap when the tool finishes.

Note:

The Iso Cluster Unsupervised Classification tool optionally outputs a signature file. You can use this signature file as input to the Maximum Likelihood Classification tool to classify the input image.