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4.2.2 Input related classes
The main input class is the abstract class Input, shown with its children
in Figure 8. This class defines what it is to be an input
module, and all input modules will have Input as an ancestor. It defines
two abstract methods, GetImage() and GetDimension().
An OMT class diagram showing the relationships of the
input related classes.
The GetImage() method returns either a StereoImage object
which is the next (possibly stereo) image from this input source, or NULL
if there are no more images available.
The GetDimension() method returns the dimensions of the images which
will be obtained from this input source.