DESCRIPTION:

A fundamental element of Eccet is the notion of fields.
Fields are array of simple datatypes (like unsigned 16 bit wide
integers) of arbitrary dimension.

As Eccet deals with 3D datasets, most interesting fields in
Eccet will be three dimensional. However there are also 2D fields
in use (for displayed pictures e.g.) as well as 1d (for histograms).

The main use of fields is for describing volumes. Normally
a volume consists of three fields: norm/grey, depth and class.
See the respective manpage for a description of these.