/usr/share/octave/site/m/vlfeat/toolbox/xtest/vl_test_lbp.m is in octave-vlfeat 0.9.17+dfsg0-6build1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 | function results = vl_test_lbp(varargin)
% VL_TEST_TWISTER
vl_test_init ;
function test_one_on()
I = {} ;
I{1} = [0 0 0 ; 0 0 1 ; 0 0 0] ;
I{2} = [0 0 0 ; 0 0 0 ; 0 0 1] ;
I{3} = [0 0 0 ; 0 0 0 ; 0 1 0] ;
I{4} = [0 0 0 ; 0 0 0 ; 1 0 0] ;
I{5} = [0 0 0 ; 1 0 0 ; 0 0 0] ;
I{6} = [1 0 0 ; 0 0 0 ; 0 0 0] ;
I{7} = [0 1 0 ; 0 0 0 ; 0 0 0] ;
I{8} = [0 0 1 ; 0 0 0 ; 0 0 0] ;
for j=0:7
h = vl_lbp(single(I{j+1}), 3) ;
h = find(squeeze(h)) ;
vl_assert_equal(h, j * 7 + 1) ;
end
function test_two_on()
I = {} ;
I{1} = [0 0 0 ; 0 0 1 ; 0 0 1] ;
I{2} = [0 0 0 ; 0 0 0 ; 0 1 1] ;
I{3} = [0 0 0 ; 0 0 0 ; 1 1 0] ;
I{4} = [0 0 0 ; 1 0 0 ; 1 0 0] ;
I{5} = [1 0 0 ; 1 0 0 ; 0 0 0] ;
I{6} = [1 1 0 ; 0 0 0 ; 0 0 0] ;
I{7} = [0 1 1 ; 0 0 0 ; 0 0 0] ;
I{8} = [0 0 1 ; 0 0 1 ; 0 0 0] ;
for j=0:7
h = vl_lbp(single(I{j+1}), 3) ;
h = find(squeeze(h)) ;
vl_assert_equal(h, j * 7 + 2) ;
end
function test_fliplr()
randn('state',0) ;
I = randn(256,256,1,'single') ;
f = vl_lbp(fliplr(I), 8) ;
f_ = vl_lbpfliplr(vl_lbp(I, 8)) ;
vl_assert_almost_equal(f,f_,1e-3) ;
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