o :ήc @s>ddlZddgZd ddZddZddZeje_eje_dS) N load_sift load_surfSIFTc Cst|tr t|d}d}n|}d}|dkr7tt|\}}tdt fdt fdt fdt fd t |ffg}n(d }t|d }t|}tdt fdt fd t d ffdt fd t |ffg}tj |dd}|j ||j tt j kr|t d|d|r|||S)aRead 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 rTFrrowcolumnscale orientationdataSURF second_momentsign )sepzInvalid z feature file.) isinstancestropenmapintreadlinesplitnpdtypefloatfromfilesizeitemsizeIOErrorcloseview)filelikemodeffilelike_is_str nr_features feature_lendatatyper r)6/tmp/pip-target-vg8gfxp4/lib/python/skimage/io/sift.py _sift_reads0 #      r+cC t|ddS)Nrr#r+r$r)r)r*rH cCr,)Nr r-r.r/r)r)r*rLr0)r)numpyr__all__r+rr__doc__r)r)r)r*s B