detect qrcode with zbar_ros
I could use zbar_ros with a webcamera to detect QRcode successfully.
But when I change the camera ,and add <remap from="device" to="/dev/video1"/>.
I can't start zbar_ros successfully.
The detail indormation is here.
exbot@ubuntu:~/zbar_ros$ roslaunch zbar_ros example.launch
... logging to /home/exbot/.ros/log/693c9cd0-fbab-11e4-b783-485ab6072ea3/roslaunch-ubuntu-9697.log
Checking log directory for disk usage. This may take awhile.
Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.
started roslaunch server http://ubuntu:45860/
SUMMARY
========
PARAMETERS
* /barcode_reader/throttle_repeated_barcodes: 2.0
* /rosdistro: indigo
* /rosversion: 1.11.10
* /uvc_camera/device: /dev/video1
NODES
/
barcode_reader (zbar_ros/barcode_reader_node)
uvc_camera (nodelet/nodelet)
zbar_manager (nodelet/nodelet)
auto-starting new master
process[master]: started with pid [9709]
ROS_MASTER_URI=http://localhost:11311
setting /run_id to 693c9cd0-fbab-11e4-b783-485ab6072ea3
process[rosout-1]: started with pid [9722]
started core service [/rosout]
process[zbar_manager-2]: started with pid [9739]
process[uvc_camera-3]: started with pid [9740]
process[barcode_reader-4]: started with pid [9775]
**[zbar_manager-2] process has died [pid 9739, exit code -11, cmd /opt/ros/indigo/lib/nodelet/nodelet manager __name:=zbar_manager __log:=/home/exbot/.ros/log/693c9cd0-fbab-11e4-b783-485ab6072ea3/zbar_manager-2.log].**
log file: /home/exbot/.ros/log/693c9cd0-fbab-11e4-b783-485ab6072ea3/zbar_manager-2*.log
[uvc_camera-3] process has finished cleanly
log file: /home/exbot/.ros/log/693c9cd0-fbab-11e4-b783-485ab6072ea3/uvc_camera-3*.log
Hi, wsAndy. I wonder how can I use these codes. Do I need another QR code reader to help detect QR code? I am almost a green hand here. Any suggestion will be appreciated. Thanks in advance.
Best regards, Peter
Well, you don't need another QR reader. zbar_ros is a good package. I think the reason why I couldn't use another camera to detect QR is that I use a wrong driver. As zbar_ros package just need to subscribe an image .