remove opencv 4.2 ubuntu 16.04

asked 2020-06-30 06:44:11 -0500

redhwan gravatar image

I tried to remove OpenCV 4.2 but failed.

I built it from the source,

First of all, used $ opencv/build/ sudo make uninstall I always use this method but today failed. it gave an error because I did not use sudo ldconfig after sudo make install when it built, I guess. Anyway, I removed file build then OpenCV and used many commands, from them:

 sudo apt remove libopencv*
sudo find / -name "*opencv*" -exec rm -i {} \;
yes | sudo find / -name "*opencv*" -exec rm -i {} \;


sudo apt-get autoremove opencv-doc opencv-data libopencv-dev libopencv2.4-java libopencv2.4-jni python-opencv libopencv-core2.4 libopencv-gpu2.4 libopencv-ts2.4 libopencv-photo2.4 libopencv-contrib2.4 libopencv-imgproc2.4 libopencv-superres2.4 libopencv-stitching2.4 libopencv-ocl2.4 libopencv-legacy2.4 libopencv-ml2.4 libopencv-video2.4 libopencv-videostab2.4 libopencv-objdetect2.4 libopencv-calib3d2.4

and replace every 2.4 by 4.2, it gave me "no library"


sudo rm -r /usr/local/include/opencv4 /usr/local/include/opencv /usr/include/opencv /usr/include/opencv4 /usr/local/share/opencv /usr/local/share/OpenCV /usr/share/opencv /usr/share/OpenCV /usr/local/bin/opencv* /usr/local/lib/libopencv*

something is strange, please help me.

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maybe explain, why fall back to (no more maintained) 2.4 ? sounds like a terrible idea

berak gravatar imageberak ( 2020-06-30 08:37:56 -0500 )edit

I only need to remove it. So, I used everything in order to remove it.

redhwan gravatar imageredhwan ( 2020-07-01 00:08:46 -0500 )edit

The book doesn't solved problem. You will have to learned Linux command. Actually, I can't help you under UBUNTU. You need to back up all yours files. And delete format on card. You will to re-install img and opencv 4.3.0 or 4.4.0-pre.

supra56 gravatar imagesupra56 ( 2020-07-01 21:50:32 -0500 )edit