Program sfdtw2 | 
[SYNOPSIS]
sfdtw2 < _in.rsf ref=_ref.rsf > _out.rsf accum=_accum.rsf shifts=_shifts.rsf maxshift= exp=2 strain1=1.0 strain2=1.0 nalter=2
[COMMENTS]
program warps a 2D input image to a 2D reference image

[PARAMETERS]
string  | accum | = |   | 	optional output for accumulation errors (auxiliary output file name)
float   | exp | =2 |   | 	error exponent (g-f)^exp 
int     | maxshift | = |   | 	maximum shift to be tested 
int     | nalter | =2 |   | 	number of horizontal and vertical smoothings 
string  | ref | = |   | 	auxiliary input file name
string  | shifts | = |   | 	optional output for shifts (auxiliary output file name)
float   | strain1 | =1.0 |   | 	maximum strain in first axis 
float   | strain2 | =1.0 |   | 	maximum strain in second axis, if > 1 no strain limit 
[DIRECTORY]
user/luke
