All Questions
14 questions
0
votes
2
answers
42
views
ROS2 Jazzy TF2 delay causing docking pathing issues
I am currently working on a mobile robot using ROS2 Jazzy with the Navigation2 docking server, along with Ros_ArUco_Opencv for ARTag pose recognition. I am seeing a delay between movement of the ARTag ...
0
votes
1
answer
186
views
cv_bridge.h not found ROS2
I need cv_bridge on my cmakelist.txt. Cmakelist shows a path for cv_bridge.h, however there is no file on that name at that path.
I have opencv 4.5.4,ros2 humble.
I tried to install cv_bridge by ...
- 1
0
votes
0
answers
42
views
Nvidia Isaac ROS Visual SLAM with OpenCV
Hey Robotics Community,
i successfully completed the Tutorial for Visual SLAM:
https://nvidia-isaac-ros.github.io/concepts/visual_slam/cuvslam/tutorial_isaac_sim.html
Now i want to show the colorful ...
- 35
0
votes
0
answers
16
views
AttributeError when trying to reinsert modified images into ROS2 bag file with Python
I'm currently working with ROS2 and Python to process image data stored in a ROS2 bag file. My task involves extracting images from the bag, performing modifications, and then reinserting them. I am ...
- 1
0
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0
answers
24
views
i want to run an image publisher in ros2 using opencv but this error apppears i am working with ros2 humble
when i run this qrie@qrie-HP-Laptop-15-rb0xx:~/dev_ws$ ros2 run cv_basics img_publisher
i get this error ModuleNotFoundError: No module named 'rclpy._rclpy_pybind11'
The C extension '/opt/ros/humble/...
0
votes
0
answers
209
views
ROS2 CV2 imshow and publish in the same loop fails
I attempted to publish and display an image from a video using cv2 and ros2. Although the code compiled successfully, running it consistently resulted in a memory allocation failure. Could someone ...
1
vote
2
answers
1k
views
Converting a ros2 bag of color raw images to image files or video
This is using ros2 Humble in Ubuntu 22.04 and native Python 3.10
Eventual goal: capturing depth aligned RGB and Depth streams from Intel RealSense D435 camera and converting them to RGB and Depth ...
- 203
0
votes
1
answer
373
views
Configuring ROS2 for OpenCV and C++
How to properly setup the ROS2 workspace (i.e., cmakelists and package.xml, etc.) for using OpenCV and C++ ?
I could not find proper examples for that.
Thanks in advance.
Originally posted by ...
Werewolf_86
0
votes
1
answer
114
views
How to enable GPU-Features of Rtabmap
OS: Ubuntu 20.04
CUDA 11.6, CuDNN 8.4 (GPU is Nvidia Quadro T 1000)
OpenCV 4.5.5 with GPU support also for CUDA and also the opencv_contribs
currently using Rtabmap standalone, but I intend to use the ...
TurBot
1
vote
1
answer
578
views
ROS2: How to publish cv Mat image?
I'm having trouble understanding how to publish a cv::Mat image in C++, and I can find very little documentation about this.
Here's my publish code. I based it on this tutorial: https://docs.ros.org/...
zjeffer
0
votes
1
answer
171
views
ModuleNotFoundError: No module named 'cv_bridge' IN windows10 running foxy
I was following this tutorial https://automaticaddison.com/getting-started-with-opencv-in-ros-2-foxy-fitzroy-python/ to implement a simple ros2 image publisher and subscriber. everything was built but ...
aniketwagh
0
votes
1
answer
109
views
publish and subscribe to numpy.ndarray topic in ROS2
Hello!
My question is quite simple is it possible to create publishers/subscriber of a numpy.ndarray topic and how?
I searched on the internet and I found these two links :
https://answers.ros.org/...
Kreace
0
votes
2
answers
7
views
ROS2 Windows OpenCV self package?
Hi,
I have finished migrating a ROS package to ROS2 and I am currently going to test it on Windows.
I had a question regarding the installation of OpenCV.
Is there a particular reason why OpenCV is ...
Obeseturtle
0
votes
1
answer
14
views
Building Ros 2.0 without OpenCV?
I'd like to build Ros 2.0 without having to have OpenCV installed.
Is this possible / How would I do this?
Originally posted by Sam101 on ROS Answers with karma: 11 on 2015-09-11
Post score: 1
Sam101