Hi, This is the example of the output i get from different packages: If gscam package using single camera: /gscam/image_raw /gscam/..... If i use usb_cam package then i get (Single camera), /usb_cam/image_raw /usb_cam/..... I can use any of the above packages in image_proc ROS_NAMESPACE=my_camera rosrun image_proc image_proc $ rosrun image_view image_view image:=my_camera/image_rect_color Here i replace my_camera with either /usb_cam or /gscam Now, If i use uvc_stereo package i should expected to get, /uvc_stereo/left/image_raw /uvc_stereo/left/...... (same for right side camera) Instead, i get directly, (W/o /uvc_stereo) /left/image_raw /left/...... (same for right side camera) This is hard to replace in the image_proc_stereo package like above case. As per package it should expect, /stereo/left/image_raw /stereo/left/camera_info /stereo/right/image_raw /stereo/right/camera_info $ ROS_NAMESPACE=stereo rosrun stereo_image_proc stereo_image_proc __name:=proc $ rosrun image_view stereo_view stereo:=/stereo image:=image_rect_color But, here i dont get either /stereo OR /uvc_camera to replace /stereo since i get /left/image_raw topic and not /OR/left/image_raw Do you suggest any way to get such publish topics through uvc_stereo package so as to use it in image_proc_stereo? I hope it is not confusing. :-) I have tried my best to explain it. Please let me know if it is still not clear. - Abhy -- View this message in context: http://ros-users.122217.n3.nabble.com/uvc-camera-and-stereo-proc-tp2451433p2452772.html Sent from the ROS-Users mailing list archive at Nabble.com.