Usage

 filter [-dec] 
    [-sn structure number <integer>]
    [-f filter name <string>] [-symm]
    [-if input image <filename>]
    [-ff output feature file <filename>]
    [-sf output statistics <filename>]

-U

Print usage information

-sn

filter structure number

-f

filter name (default i_2_1_09). Options: Farro: Farrokhnia's (90) method, Gabor: Gabor filter with structure given by -sn, f..: FIR QMF PR filters, i..: IIR QMF PR filters and w..: Wavelet QMF PR filters

-dec

decimate the filter output?

-symm

symmetrically extend prior to filtering?

-if

input image file

-ff

output feature file

-sf

output statistics file (default segment.stats)