The capability of interactive multimedia and Internet technologies is inves
tigated with respect to the implementation of a distance learning environme
nt. The system is built according to a client-server architecture, based on
the Internet infrastructure, composed of server nodes conceptually modelle
d as WWW sites. Sites are implemented by customization of available compone
nts. The environment integrates network-delivered interactive multimedia co
urses, network-based tutoring, SIG support, information databases of profes
sional interest, as well as course and tutoring management. This capability
has been demonstrated by means of an implemented system, validated with di
gital image processing content, specifically image enhancement. Image enhan
cement methods are theoretically described and applied to mammograms. Empha
sis is given to the interactive presentation of the effects of algorithm pa
rameters on images. The system end-user access depends on available bandwid
th, so high-speed access can be achieved via LAN or local ISDN connections.
Network based training offers new means of improved access and sharing of
learning resources and expertise, as promising supplements in training.