F: 1, sim (iris5.pgm,iris9.pgm,0.009788), diff (iris1.pgm,iris7.pgm,0.270573)
F: 2, sim (iris5.pgm,iris9.pgm,0.008107), diff (iris1.pgm,iris7.pgm,0.266977)
F: 4, sim (iris6.pgm,iris9.pgm,0.014204), diff (iris1.pgm,iris7.pgm,0.279806)
F: 8, sim (iris3.pgm,iris5.pgm,0.013114), diff (iris1.pgm,iris7.pgm,0.292804)
F: 16, sim (iris3.pgm,iris8.pgm,0.002212), diff (iris1.pgm,iris7.pgm,0.325072)
F: 32, sim (iris6.pgm,iris8.pgm,0.001001), diff (iris1.pgm,iris7.pgm,0.382512)
F: 64, sim (iris2.pgm,iris6.pgm,0.005750), diff (iris1.pgm,iris7.pgm,0.449659)
F: 128, sim (iris6.pgm,iris9.pgm,0.001256), diff (iris1.pgm,iris7.pgm,0.544669)