1 /** 2 * @file AKAZEConfig.h 3 * @brief AKAZE configuration file 4 * @date Feb 23, 2014 5 * @author Pablo F. Alcantarilla, Jesus Nuevo 6 */ 7 8 #ifndef __OPENCV_FEATURES_2D_AKAZE_CONFIG_H__ 9 #define __OPENCV_FEATURES_2D_AKAZE_CONFIG_H__ 10 11 namespace cv 12 { 13 /* ************************************************************************* */ 14 /// AKAZE configuration options structure 15 struct AKAZEOptions { 16 17 AKAZEOptions() 18 : omax(4) 19 , nsublevels(4) 20 , img_width(0) 21 , img_height(0) 22 , soffset(1.6f) 23 , derivative_factor(1.5f) 24 , sderivatives(1.0) 25 , diffusivity(KAZE::DIFF_PM_G2) 26 27 , dthreshold(0.001f) 28 , min_dthreshold(0.00001f) 29 30 , descriptor(AKAZE::DESCRIPTOR_MLDB) 31 , descriptor_size(0) 32 , descriptor_channels(3) 33 , descriptor_pattern_size(10) 34 35 , kcontrast(0.001f) 36 , kcontrast_percentile(0.7f) 37 , kcontrast_nbins(300) 38 { 39 } 40 41 int omax; ///< Maximum octave evolution of the image 2^sigma (coarsest scale sigma units) 42 int nsublevels; ///< Default number of sublevels per scale level 43 int img_width; ///< Width of the input image 44 int img_height; ///< Height of the input image 45 float soffset; ///< Base scale offset (sigma units) 46 float derivative_factor; ///< Factor for the multiscale derivatives 47 float sderivatives; ///< Smoothing factor for the derivatives 48 int diffusivity; ///< Diffusivity type 49 50 float dthreshold; ///< Detector response threshold to accept point 51 float min_dthreshold; ///< Minimum detector threshold to accept a point 52 53 int descriptor; ///< Type of descriptor 54 int descriptor_size; ///< Size of the descriptor in bits. 0->Full size 55 int descriptor_channels; ///< Number of channels in the descriptor (1, 2, 3) 56 int descriptor_pattern_size; ///< Actual patch size is 2*pattern_size*point.scale 57 58 float kcontrast; ///< The contrast factor parameter 59 float kcontrast_percentile; ///< Percentile level for the contrast factor 60 int kcontrast_nbins; ///< Number of bins for the contrast factor histogram 61 }; 62 63 } 64 65 #endif 66
