do_sift.m

phow is the code for extracting pyramid features from image

function do_sift(img,regions,sift)

%comanda = sprintf('./compute_descriptors.ln -sift -i %s -p1 %s  -o1 %s',imatge,regions,sift);
%comanda = sprintf('./compute_descriptors.ln  -sift -scale-mult 1 -sift-mag-thr 200 -i %s -p2 %s -o2 %s -DR',img,regions,sift);
comanda = sprintf('./compute_descriptor.ln  -sift -scale-mult 1 -sift-mag-thr 200 -i %s -p2 %s -o2 %s',img,regions,sift);
unix(comanda);