== Processors == To get a current list of Processors, run '''''e2help.py processor''''' or for more detailed information '''''e2help.py processor -v 2'''''. These are algorithms for masking, filtering and performing other basic image processing operations. They are used in a wide range of different situations, but most often are specified to ''e2proc2d.py'' or ''e2proc3d.py'' with the ''--process='' option to construct filter chains. The ''e2filtertool.py'' program. Provides a mechanism for constructing filter chains and editing them graphically. The following categories of processor currently exist: * basis * filter * mask * math * misc * normalize * segment * testimage * xform Each category has many different algorithms.