reduce_region_radius  360 modules/imgproc/src/lsd.cpp     bool reduce_region_radius(std::vector<RegionPoint>& reg, int& reg_size, double reg_angle,
reduce_region_radius  824 modules/imgproc/src/lsd.cpp         return reduce_region_radius(reg, reg_size, reg_angle, prec, p, rec, density, density_th);