The most important user level class:
ConstructorOperations (and all factories), GlobalOpsOperations, UserOpsOperations.
ImageRepOperations, ImageSeqOperations, HistogramOperations, NJetOperations, BSplineCurveOperations, SampledBSplineCurveOperations
Basic classes and types:
Image related classes:
ImageSignature, GeoIntType, Sizes, TagList, PixValue, PixelT