Comments (5)
In addition, I found that the OpenCV version corresponding to ROS Noetic in RasipiOS is 3.2. And In the OpenCV3.2 user manual, the image width parameters are the same as those in this project code, see :
and when i running cv_camera_node, although the program shows fail to set image_width, but the resolution of the image data posted through the topic has been set correctly. That's confused me
from cv_camera.
This package is thin wrapper of OpenCV video capture module.
Can you check if it is possible to do that from opencv?
from cv_camera.
So I found the problem is with the OpenCV version. OpenCV 2 version works well with the current cv_camera package. Whereas some of the OpenCV 3 versions have API changes, so the image width could not be set.
from cv_camera.
@vigneshrajap Hi, Vignesh. I'm using ROS Noetic on RaspiOS , I have the same issue . Could you tell me which API you found is different and how to use the correct API to set the image width. Thanks alot!
from cv_camera.
In some OpenCV versions, API is like cv::CV_CAP_PROP_FRAME_WIDTH
from cv_camera.
Related Issues (20)
- ‘CAP_V4L’ is not a member of ‘cv’ in cap_.open(device_path, cv::CAP_V4L); HOT 3
- ‘CAP_V4L’ is not a member of ‘cv’ HOT 1
- How to set camera to MJPG?
- [ERROR] [1533077476.693028660]: cv camera open failed: device_id0 cannot be opened HOT 7
- Camera Support
- ROS2 support HOT 5
- cv_camera from file HOT 1
- VIDIOC_DQBUF: No such device error
- Build fails Opencv4 HOT 2
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- Image is wrongly formed error.
- Running warning and suggestions on grabing image
- [ERROR] [1623689901.478565848]: cv camera open failed: device_id0 cannot be opened HOT 3
- File infinite loop
- camera calibration result
- Unable to change the node execution rate
- raspicam_node - comparable? HOT 1
- Changing brightness and other settings
- .launch file property to ask for monochrome image
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from cv_camera.