Turtlebot follower

turtlebot follower void imageCb const sensor msgs::ImageConstPtr& msg { cv bridge::CvImagePtr cv ptr; try { cv ptr cv bridge::toCvCopy msg sensor msgs::image encodings::BGR8 ; } catch cv bridge::Exception& e { ROS ERROR "cv bridge exception: %s" e what ; return; }">turtlebot follower void imageCb const sensor msgs::ImageConstPtr& msg { cv bridge::CvImagePtr cv ptr; try { cv ptr cv bridge::toCv Copy msg sensor msgs::image encodings::BGR8 ; } catch cv bridge::Exception& e { ROS ERROR "cv bridge exceptio [更多]