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.