libvlfeat: scalespace.h Source File

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00001 
00008 /*
00009 Copyright (C) 2007-12 Andrea Vedaldi and Brian Fulkerson.
00010 All rights reserved.
00011 
00012 This file is part of the VLFeat library and is made available under
00013 the terms of the BSD license (see the COPYING file).
00014 */
00015 
00016 #ifndef VL_SCALESPACE_H
00017 #define VL_SCALESPACE_H
00018 
00019 #include "generic.h"
00020 #include "imopv.h"
00021 #include "mathop.h"
00022 
00023 /* ---------------------------------------------------------------- */
00024 /*                                             VlScaleSpaceGeometry */
00025 /* ---------------------------------------------------------------- */
00026 
00031 typedef struct _VlScaleSpaceGeometry
00032 {
00033   vl_size width ; 
00034   vl_size height ; 
00035   vl_index firstOctave ; 
00036   vl_index lastOctave ; 
00037   vl_size octaveResolution ; 
00038   vl_index octaveFirstSubdivision ; 
00039   vl_index octaveLastSubdivision ; 
00040   double baseScale ; 
00041   double nominalScale ; 
00042 } VlScaleSpaceGeometry ;
00043 
00044 VL_EXPORT
00045 vl_bool vl_scalespacegeometry_is_equal (VlScaleSpaceGeometry a,
00046                                         VlScaleSpaceGeometry b) ;
00047 
00048 /* ---------------------------------------------------------------- */
00049 /*                                       VlScaleSpaceOctaveGeometry */
00050 /* ---------------------------------------------------------------- */
00051 
00053 typedef struct _VlScaleSpaceOctaveGeometry
00054 {
00055   vl_size width ; 
00056   vl_size height ; 
00057   double step ; 
00058 } VlScaleSpaceOctaveGeometry ;
00059 
00060 /* ---------------------------------------------------------------- */
00061 /*                                                     VlScaleSpace */
00062 /* ---------------------------------------------------------------- */
00063 
00064 typedef struct _VlScaleSpace VlScaleSpace ;
00065 
00069 VL_EXPORT VlScaleSpaceGeometry vl_scalespace_get_default_geometry(vl_size width, vl_size height) ;
00070 VL_EXPORT VlScaleSpace * vl_scalespace_new (vl_size width, vl_size height) ;
00071 VL_EXPORT VlScaleSpace * vl_scalespace_new_with_geometry (VlScaleSpaceGeometry geom) ;
00072 VL_EXPORT VlScaleSpace * vl_scalespace_new_copy (VlScaleSpace* src);
00073 VL_EXPORT VlScaleSpace * vl_scalespace_new_shallow_copy (VlScaleSpace* src);
00074 VL_EXPORT void vl_scalespace_delete (VlScaleSpace *self) ;
00080 VL_EXPORT void
00081 vl_scalespace_put_image (VlScaleSpace *self, float const* image);
00087 VL_EXPORT VlScaleSpaceGeometry vl_scalespace_get_geometry (VlScaleSpace const * self) ;
00088 VL_EXPORT VlScaleSpaceOctaveGeometry vl_scalespace_get_octave_geometry (VlScaleSpace const * self, vl_index o) ;
00089 VL_EXPORT float *
00090 vl_scalespace_get_level (VlScaleSpace * self, vl_index o, vl_index s) ;
00091 VL_EXPORT float const *
00092 vl_scalespace_get_level_const (VlScaleSpace const * self, vl_index o, vl_index s) ;
00093 VL_EXPORT double
00094 vl_scalespace_get_level_sigma (VlScaleSpace const *self, vl_index o, vl_index s) ;
00097 /* VL_SCALESPACE_H */
00098 #endif
00099