20 vector<int> regions; //region points are defined w.r.t. the center point for which the feautre value is calculated
21
22//constructor for features with 2 regions
23CHaarFeature(int r1x1, int r1x2, int r1y1, int r1y2, int r2x1, int r2x2, int r2y1, int r2y2, double r1weight, double r2weight );
24//constructor for features with 3 regions
25CHaarFeature(int r1x1, int r1x2, int r1y1, int r1y2, int r2x1, int r2x2,int r2y1, int r2y2, int r3x1, int r3x2, int r3y1, int r3y2, double r1weight, double r2weight, double r3weight);
26//constructor for features with 4 regions
27CHaarFeature(int r1x1, int r1x2, int r1y1, int r1y2,