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| author | Joe Zhao <ztuowen@gmail.com> | 2015-05-12 13:15:55 +0800 |
|---|---|---|
| committer | Joe Zhao <ztuowen@gmail.com> | 2015-05-12 13:15:55 +0800 |
| commit | 34de475999a22ac7280411e15339e77a0c8dbc2e (patch) | |
| tree | 76ecfbe3a8f20d6da8b136dfe78a9e8071075692 /genFeatureVec.m | |
| download | featext-34de475999a22ac7280411e15339e77a0c8dbc2e.tar.gz featext-34de475999a22ac7280411e15339e77a0c8dbc2e.tar.bz2 featext-34de475999a22ac7280411e15339e77a0c8dbc2e.zip | |
initial commit
Diffstat (limited to 'genFeatureVec.m')
| -rw-r--r-- | genFeatureVec.m | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/genFeatureVec.m b/genFeatureVec.m new file mode 100644 index 0000000..75fa0e8 --- /dev/null +++ b/genFeatureVec.m @@ -0,0 +1,55 @@ +function vec = genFeatureVec(img) + bins = 16; + ncnls = 8; + cnls = zeros(size(img,1), size(img,2),ncnls); + cnls(:,:,1:3) = img; + cnls(:,:,4:6) = rgb2ycbcr(img); + hsv = rgb2hsv(img); + cnls(:,:,7:8) = hsv(:,:,1:2); + % Schmid + scVec=[ + 1,2; + 1,4; + 2,4; + 1,6; + 2,6; + 3,6; + 1,8; + 2,8; + 3,8; + 1,10; + 2,10; + 3,10; + 4,10]; + gbVec = [ + 0.3,0,4,2; + 0.3,0,8,2; + 0.4,0,4,1; + 0.4,0,8,2; + 0.3,pi/2,4,2; + 0.3,pi/2,8,2; + 0.4,pi/2,4,1; + 0.4,pi/2,8,2;]; + gb = length(gbVec); + sc = length(scVec); + vec=[]; + for i = 1:sc + for cnl = 1:ncnls + filt = schmidFilter(scVec(i,1),scVec(i,2)); + pos = real(sum(sum(filt.*(filt>0)))); + neg = real(sum(sum(filt.*(filt<0)))); + ss = (pos-neg)/bins; + v = histcounts(imfilter(cnls(:,:,cnl), filt, 'symmetric'),(0:bins)*ss+neg); + vec=cat(2,vec,v); + end + end + for i = 1:gb + for cnl = 1:ncnls + filt = gaborFilter(gbVec(i,1),gbVec(i,2),gbVec(i,3),gbVec(i,4)); + pos = real(sum(sum(filt.*(filt>0)))); + neg = real(sum(sum(filt.*(filt<0)))); + ss = (pos-neg)/bins; + v = histcounts(real(imfilter(cnls(:,:,cnl), filt, 'symmetric')),(0:bins)*ss+neg); + vec=cat(2,vec,v); + end + end
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