Achieve the picture sift feature extraction and clustering can generate dictionary. And with detailed notes and instructions. We are now about sift pictures, are using this code. Absolutely available. For beginners and developers are of great help.

bow-sift\bow.m
........\bow_test.m
........\combine.m
........\descriptor\bow_ventor.m
........\..........\distance.m
........\..........\do_descriptor.asv
........\..........\do_descriptor.m
........\..........\do_sift.m
........\..........\lee_load_dir_file.m
........\..........\lee_make_dir.m
........\..........\lee_sift_find.m
........\..........\lee_sift_show.m
........\..........\main.m
........\..........\my_classes.m
........\feature_Sift-bow256.txt
........\key-location\do_extrefine.asv
........\............\do_extrefine.m
........\............\do_localmax.m
........\main_bow.asv
........\main_bow.m
........\orientation\do_orientation.m
........\orig_Sift-bow64.txt
........\README.txt
........\scale-space\do_diffofg.m
........\...........\do_gaussian.m
........\...........\smooth.m
........\sift_feature.m
........\util\appendimages.m
........\....\imreadbw.m
........\....\plotsiftframe.m
........\....\plotss.m
........\....\tightsubplot.m
........\说明.txt
........\descriptor
........\key-location
........\orientation
........\scale-space
........\util
bow-sift

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