If ``Full Processing'' is selected then the user is expected to establish a transformation using both GCPs and a mathematical model as well as perform a registration of the image. This option is the most traditional and a good default.
If ``Collect/review GCPs Only'' is selected, the user will not have the option of performing a final registration, pre-registration or any mosaicking setup.
If ``Mosaic Only'' is selected it is assumed that the input image, and the output file are already geocoded so that the image warping can be established on the basis of the georeferencing. The sequence of steps is streamlined to performing the mosaicking operation.