Often used image processing functionality is typically implemented as a global (C++) function. The global functions are easier to use as they hide the general parameter handling mechanism and other complex issues associated with the calling of generic image operations via HxImageRep member functions. Global image functions provides an overview of the current set of global C++ functions.
Next, we will give some examples of how to use the global functions and indicate how they are implemented using generic functions so that you get an idea of how to do this yourself.