The "Morphological Operators" session is a typical session that is used to teach at EPFL. It contains a programming part and an experimental part with applications. In two hours, the students have the opportunity to program a series of morphological operators and to apply them to real world problems.

Read the subject.
See the Java code. It is a template class that we give to the students: it includes some examples of coding.
Run the solution as a Java applet.