fix cpp infer
@ -47,7 +47,7 @@ public:
this->det_db_box_thresh = stod(config_map_["det_db_box_thresh"]);
this->det_db_unclip_ratio = stod(config_map_["det_db_unclip_ratio"]);
this->det_model_dir.assign(config_map_["det_model_dir"]);