Program sfcomp | Compare 2 data set 
[SYNOPSIS]
sfcomp < in.rsf > out.rsf ref=ref.rsf mode=0
[PARAMETERS]
int     | mode | =0 |   | 	compare method: 
	0 - normalized xcorrelation; 
	1 - mean square error 
file    | ref | = |   | 	auxiliary input file name
[DIRECTORY]
user/chen
