Available with Spatial Analyst license.
A signature file is required when you use the geoprocessing tool Maximum Likelihood Classification to classify an image. To create a signature file, you can use the Create Signature File tool on the Training Sample Manager dialog box.
- Create the training samples using the Image Classification toolbar if they have not yet been created. See the Creating training samples step on how to create them.
- Open Training Sample Manager from the Image Classification toolbar. Click the Create Signature File button.
A file browser dialog box appears.
- On the file browser dialog box, pick a location and specify a name for the signature file, then click OK to save the file.
A signature file is created and saved on disk.