jacksonliam
commented
7 years ago What commands did you use to build? I assume you have installed opencv and want to use the opencv plugin?
Closed VictorLamoine closed 7 years ago
jacksonliam
commented
7 years ago What commands did you use to build? I assume you have installed opencv and want to use the opencv plugin?
VictorLamoine
commented
7 years ago I am using the installation instructions from OctoPrint.
I'm currently using these instructions on my desktop (so, I'm not on the RPi) to test some webcams :)
VictorLamoine
commented
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__pkg_config_checked_PC_GPHOTO2:INTERNAL=1$ dpkg -l | grep opencv
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ii libopencv-superres2.4v5:amd64 2.4.9.1+dfsg-1.5ubuntu1 amd64 computer vision Super Resolution library
ii libopencv-ts-dev:amd64 2.4.9.1+dfsg-1.5ubuntu1 amd64 development files for libopencv-ts2.4v5
ii libopencv-ts2.4v5:amd64 2.4.9.1+dfsg-1.5ubuntu1 amd64 computer vision ts library
ii libopencv-video-dev:amd64 2.4.9.1+dfsg-1.5ubuntu1 amd64 development files for libopencv-video
ii libopencv-video2.4v5:amd64 2.4.9.1+dfsg-1.5ubuntu1 amd64 computer vision Video analysis library
ii libopencv-videostab-dev:amd64 2.4.9.1+dfsg-1.5ubuntu1 amd64 development files for libopencv-videostab2.4v5
ii libopencv-videostab2.4v5:amd64 2.4.9.1+dfsg-1.5ubuntu1 amd64 computer vision video stabilization library
ii libopencv2.4-java 2.4.9.1+dfsg-1.5ubuntu1 all Java bindings for the computer vision library
ii libopencv2.4-jni 2.4.9.1+dfsg-1.5ubuntu1 amd64 Java jni library for the computer vision library
ii opencv-data 2.4.9.1+dfsg-1.5ubuntu1 all development data for opencv
ii python-opencv 2.4.9.1+dfsg-1.5ubuntu1 amd64 Python bindings for the computer vision library
ii ros-kinetic-opencv3 3.2.0-4xenial-20170607-095735-0800 amd64 OpenCV 3.x
ii ros-kinetic-vision-opencv 1.12.4-0xenial-20170613-183914-0800 amd64 Packages for interfacing ROS with OpenCV, a library of programming functions for real time computer vision.Disabling PLUGIN_CVFILTER_PY allows to compile.
sudo apt install -yqq cmake-curses-gui
cd _build
ccmake .Go to the PLUGIN_CVFILTER_PY line, set it to OFF. Press C to configure, then G to generate.
When done, call make again.
VictorLamoine
commented
7 years ago Looks like it's failing because I have OpenCV 3.2.0 installed from the ROS repository. I did not try but I think using the system (OpenCV 2.8) would work.
I don't think I need this plug-in so it's fine disabling it in my case.
jacksonliam
commented
7 years ago Thanks for looking into this further and posting a workaround!
I think this is actually related to having multiple versions of python installed (2.7 and 3.x) and something is picking up the 2.7 header rather than the 3.x
I'm not sure if there's anything I can do about this on my side except for disable the opencv plugin from building by default.
ayourk
commented
4 years ago The fix is to have CMake disable the PY part of the plugin if Python 3 is not going to be the Python version to be used: opencv_requires_python3.patch.txt
OR make the filter Python 2 compatible: opencv_python2_compat.patch.txt
I'm not familiar with what it would take to fully convert these 2 routines to Python 2 compatibility, so I simply neutered them to not allow a script file to be passed.
jacksonliam
commented
4 years ago The fix is to have CMake disable the PY part of the plugin if Python 3 is not going to be the Python version to be used: opencv_requires_python3.patch.txt
OR make the filter Python 2 compatible: opencv_python2_compat.patch.txt
I'm not familiar with what it would take to fully convert these 2 routines to Python 2 compatibility, so I simply neutered them to not allow a script file to be passed.
Thanks, that seems like a sensible change.
Ubuntu 16.04 gcc 6.3.0
Error
Python packages on my system