Smei OPerators
==============

SMEI operator programs are described in the user's guide. The sop_files
subdirectory contains a number of pre-defined operations. The user can
add his own in $HOME/sop_files.

Predefined operations:

rdiff.sop - a basic running difference
rratio.sop - a basic running ratio
rdiff5.sop - running difference with a 5x5 median filter.
diff1.sop - subtract the first image of the sequence.
base5.sop - subtract the mean of the first 5 images of the sequence.

Naming conventions.

All the predefined files use the default sequence name of "ss", if your
sequence is not called ss then you should use keywords to map it.

Example: suppose you have a sequence called myseq, then to use the
running difference operation on it, use:
smei_calculate, mynewseq, ss=myseq, file="rdiff.sop"