Questions tagged [opencv]
OpenCV (Open Source Computer Vision) is a cross-platform library of programming functions for real time computer vision.
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ROS, Camera1394, and libusb issue
Hello,
This is a repost of a question asked over at Ask Ubuntu where I thought this might be more appropriate, but sadly I didn't get any bites.
I'm trying to get up and running with a Point Grey ...
Bradley Powers
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ROS Answers SE migration: bgr2hsv oddity
Usinge OpenCV cvCvtColor to convert BGR images to HSV. Seems to work fine, but the channel order is not what I expect. Assumed I would see HSV ordering, but using COI or cvSplit, looking visually at ...
sneiman
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Working package for fiducial pose recognition?
Hi all,
I've been trying to compile the fiducial package (http://www.ros.org/browse/details.php?name=fiducial) without success due to a compilation error in its dependency, opencv_candidate (http://...
Billy
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ROS Answers SE migration: kinect opencv
I'm trying to use the depth data obtained by kinect with C++ program.
I've already installed openni_kinect with the guide(http://www.ros.org/wiki/openni_kinect,
OpenNI itself is installed in this ...
dinect
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How to use very latest OpenCV version in ROS?
I am trying to use the very latest version of OpenCV in ROS because I want to integrate a critical bugfix from OpenCV. From what I read OpenCV is integrated by some 'magic' mechanism. Is it simply ...
Julius
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Camera pose calibration with multiple camera's
Hi,
we're using the camera_pose_calibration package and try to calibrate multiple camera's with it.
We followed the instructions at http://www.ros.org/wiki/camera_pose_calibration - which went well.
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Steven Bellens
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Putting a sensor_msgs/Image into a message, getting it back, and converting it for OpenCV?
I'm just doing this wrong somehow.
I've got a Sensor_msgs/Image already. I want to put it into my message which has "Sensor_msgs/Image image" in it's definition.
Can I just do this:
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Murph
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Why are corners not detected in images with chessboard fiducials?
Using pose_estimator in tod_training for creating a training base, I wonder why sometimes the pose estimation fails. On fat_free_milk from tod kinect training data pose could be estimated on all of ...
Julius
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OpenCV camshift.py sample broken after Diamondback upgrade
Hello OpenCV + ROS users,
I will submit a ticket for this but I'm wondering if anyone has a quick fix in the meantime. I was using the camshift.py OpenCV Python sample successfully under Cturtle. ...
Pi Robot
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YUYV/YUV422 in image_transport
Most of USB webcams used in hobby robotics support YUYV coding natively. Currently both OpenCV and ROS by default convert this image to BGR format and this is not most efficient decicion for most ...
Tõnu Samuel