Subscribe to image_raw again, as detector seems to rectify

launch/adc_ar_detector.launch

 <?xml version="1.0" encoding="UTF-8"?>
 <launch>
-  <arg name="car_name"  default="adc_car"/>
+  <arg name="car_name"     default="adc_car"/>
+  <arg name="marker_size"  default="5.0"/>
 
   <node name="ar_track_alvar" 
         pkg="ar_track_alvar" 
         type="individualMarkersNoKinect" 
         respawn="false" 
         output="screen">
-    <param name="marker_size"           type="double" value="6.0" />
+    <param name="marker_size"           type="double" value="$(arg marker_size)" />
     <param name="max_new_marker_error"  type="double" value="0.08" />
     <param name="max_track_error"       type="double" value="0.2" />
     <param name="output_frame"          type="string" value="$(arg car_name)/front_camera_uvc_camera_optical" />
-    <remap from="/camera_image"  to="$(arg car_name)/sensors/basler_camera/image_rect" />
+    <remap from="/camera_image"  to="$(arg car_name)/sensors/basler_camera/image_raw" />
     <remap from="/camera_info"   to="$(arg car_name)/sensors/basler_camera/camera_info" />
   </node>
 </launch>