\c@sbddlmZddlZddgZddZdZdZeje_eje_dS( i(t string_typesNt load_siftt load_surftSIFTcCst|tr't|d}t}n |}t}|dkrtt|jj\}}t j dt fdt fdt fdt fdt |ffg}nvd}t|jd }t|j}t j dt fdt fd t d ffd t fdt |ffg}t j |d d}|j ||jt j t jkrntdj|n|r|jn|j|S(s Read SIFT or SURF features from externally generated file. This routine reads SIFT or SURF files generated by binary utilities from http://people.cs.ubc.ca/~lowe/keypoints/ and http://www.vision.ee.ethz.ch/~surf/. This routine *does not* generate SIFT/SURF features from an image. These algorithms are patent encumbered. Please use `skimage.feature.CENSURE` instead. Parameters ---------- filelike : string or open file Input file generated by the feature detectors from http://people.cs.ubc.ca/~lowe/keypoints/ or http://www.vision.ee.ethz.ch/~surf/ . mode : {'SIFT', 'SURF'}, optional Kind of descriptor used to generate `filelike`. Returns ------- data : record array with fields - row: int row position of feature - column: int column position of feature - scale: float feature scale - orientation: float feature orientation - data: array feature values trRtrowtcolumntscalet orientationtdatatSURFit second_momentitsigntsept sInvalid {} feature file.(t isinstanceRtopentTruetFalsetmaptinttreadlinetsplittnptdtypetfloattfromfiletsizetitemsizetIOErrortformattclosetview(tfileliketmodetftfilelike_is_strt nr_featurest feature_lentdatatypeR ((s.lib/python2.7/site-packages/skimage/io/sift.pyt _sift_reads,#  !!& cCst|ddS(NR"R(R((R#((s.lib/python2.7/site-packages/skimage/io/sift.pyRIscCst|ddS(NR"R (R((R#((s.lib/python2.7/site-packages/skimage/io/sift.pyRMs( tsixRtnumpyRt__all__R(RRt__doc__(((s.lib/python2.7/site-packages/skimage/io/sift.pyts   B