Zbar ROS

Basic ROS2 wrapper for the zbar (http://zbar.sourceforge.net/) barcode reader library. Reads image stream from image topic, and outputs detected barcodes to barcode topic. Works with 1D and 2D barcodes.

Installation

Binary Installation

To perform a binary installation, source your ROS 2 installation, then simply run:

sudo apt install ros-${ROS_DISTRO}-zbar-ros

Source Installation (Alternative)

Alternatively, you can build from source.

Make sure you are in a ROS 2 workspace. Clone this repository into your workspace’s src directory by running:

git clone git@github.com:ros-drivers/zbar_ros.git src/zbar_ros

Install the dependencies using rosdep:

rosdep install --from-paths src --ignore-src -r -y

Build the package:

colcon build

Usage

You have to source your workspace, then run the node. In your workspace, run:

source install/local_setup.bash
ros2 run zbar_ros barcode_reader

Topics

Subscriptions:

• image (sensor_msgs/msg/Image)

Publisher:

• barcode (std_msgs/msg/String)

Debugging the barcode_reader node

To debug whether the node is

• receiving msgs on image
• detecting your 1d or 2d QT code
• publishing the result on barcode

run with debug logging enabled as below:

ros2 run zbar_ros barcode_reader --ros-args --log-level DEBUG

Changelog for package zbar_ros

0.5.1 (2024-04-28)

• Add iron CI (#28)
• Remove usage of deprecated cv_bridge header file (#19)
• Switch to CI from ros-tooling (#27)
• Improve README (#17)
• Update authors and maintainers of package (#13)
• Contributors: Kenji Brameld

0.4.0 (2022-02-12)

• Port to ROS2
• Update package.xml
• Add LICENSE
• Add more information to README
• Contributors: Kenji Brameld, Paul Bovbel, ijnek

0.3.0 (2021-03-12)

• Lint and close #6
• Contributors: Paul Bovbel

0.2.0 (2021-03-12)

• Keep tooling CI
• Update header for newer opencv version
• Add github action
• Contributors: Gary Servin, Paul Bovbel

0.1.0 (2017-12-14)

• Update maintainer
• Merge pull request #4 from mikaelarguedas/patch-1 update to use non deprecated pluginlib macro
• update to use non deprecated pluginlib macro
• Some fixes to work (#2)
  • fix wrong encoding
  • fix memory leak
• Update README.md
• Contributors: Furushchev, Mikael Arguedas, Paul Bovbel

0.0.5 (2015-03-31)

• Fix nodelets.xml installation
• Only create timer if throttling enabled
• Contributors: Paul Bovbel

0.0.4 (2015-01-16)

• Style fixes
• Fix naming and debug messages
• Update node->nodelet wrapper
• Contributors: Paul Bovbel

0.0.3 (2015-01-11)

• remove stray tf in cmake
• Contributors: Paul Bovbel

0.0.2 (2015-01-10)

• update dependencies
• Contributors: Paul Bovbel

0.0.1 (2015-01-10)

• Initial development of zbar_ros
• Contributors: Paul Bovbel