Ja. Bangham et S. Marshall, IMAGE AND SIGNAL-PROCESSING WITH MATHEMATICAL MORPHOLOGY, Electronics & communication engineering journal, 10(3), 1998, pp. 117-128
Mathematical morphology is the analysis of signals and images in terms
of shape. Much is based on simple positive Boolean functions that are
used to produce filters for binary and greyscale signals and images,
In a recent development, the standard operators are applied to connect
ed sets that form maxima and minima. These are new, powerful, general
tools for analysing and representing images.