Task3/traffic_sign_recognition/launch/led_dataset_collector.launch

<launch>
  <arg name="config" default="$(find traffic_sign_recognition)/config/traffic_sign.yaml"/>
  <arg name="calibration_file" default="$(find traffic_sign_recognition)/config/head_camera.yaml"/>
  <arg name="data_root" default="/home/ucar/traffic_sign_data"/>

  <node pkg="traffic_sign_recognition" type="led_dataset_collector.py" name="led_dataset_collector" output="screen">
    <rosparam command="load" file="$(arg config)"/>
    <param name="calibration_file" value="$(arg calibration_file)"/>
    <param name="data_root" value="$(arg data_root)"/>
  </node>
</launch>