To merge existing classes:
When two classes of training pixels are found very similar, based on the Sample Statistics and the Feature Spaces, you may decide to merge these classes. In fact, training pixels of one class are merged together with the training pixels of another class.
The Merge Classes dialog box appears.
To assign training pixels to another class:
The Edit Pixels dialog box appears. Assign the desired class to the selected pixels.
To rename a class:
Renaming classes can be done in the domain Class editor. Open the domain from the Main window, and edit a class name into another class name. For more information, see also How to edit a domain and Domain Class/ID editor.
To delete one or more pixels from a class of training pixels:
When by mistake some pixels were sampled and assigned to a certain class, you can remove these from the class by reselecting these pixels and assigning them the undefined value.
The Edit Pixels dialog box appears. Assign the undefined value (?) to the selected pixels.
To delete a whole class of training pixels:
The Delete Class dialog box appears, select a class of training pixels to be deleted. Training pixels of the selected class are removed from the sample set, but the class remains in the domain. To also remove the class from the domain, first delete the training pixels of the class, then delete the class from the domain in the domain Class/ID editor.
To change the color of a class:
The Representation Class editor is opened where you can edit the colors of the classes.
See also:
Sample set editor : functionality (1)