public static < D extends ImageGray < D > > OrientationHistogramSift < D > sift ( ConfigSiftOrientation config , Class < D > derivType ) { if ( config == null ) config = new ConfigSiftOrientation ( ) ; config . checkValidity ( ) ; return new OrientationHistogramSift ( config . histogramSize , config . sigmaEnlarge , derivType ) ; }
Estimates multiple orientations as specified in SIFT paper .