How to open an existing sample set
How to edit a sample set
To perform an image classification, a sample set has to be created. Then, you can sample training pixels: assign class names to groups of pixels with similar spectral values and that are supposed to represent a known feature on the ground.
To open a sample set:
- double-click an existing sample set in the Catalog, or
- from the Operations menu in the Main window, select Image Processing, Sample, and select an existing sample set, or
- in the Operation-tree or the Operation-list, double-click Sample Map, and select an existing sample set, or
- click the sample set with the right mouse button in the Catalog: choose Open from the context-sensitive menu, or
- drag an existing sample set from the Catalog, to the Sample Map item in the Operation-tree or the Operation-list, or
- from the File menu in the Main window, select Open, specify sample set for object type, and select a sample set, or
- from the Edit menu in the Main window, select Edit Object, specify sample set for object type, and select a sample set.
The sample set editor is started. There, you can select more training pixels, inspect statistics of classes of training pixels, inspect feature spaces, merge classes of training pixels, etc.
See also:
Sample set editor
How to create a sample set