tes3awy / opencv-3.2.0-compiling-on-raspberry-pi Goto Github PK

I compiled opencv 3.2 and followed every step till the last one but as soon as I import cv2 the command prompt says illegal instruction and quits out of python shell. library compiled for raspberry pi zero W, running raspbian stretch lite.

Compiling with -j3 failed for me.

make alone tooks 7h or so but it worked fine.

Hi,
I installing opencv 3.3.0 on my raspberry pi 3, using the cmake with the following configure:
cmake -D CMAKE_BUILD_TYPE=RELEASE
-D INSTALL_C_EXAMPLES=OFF
-D INSTALL_PYTHON_EXAMPLES=ON
-D CMAKE_INSTALL_PREFIX=/usr/local
-D WITH_V4L=ON
-D INSTALL_CREATE_DISTRIB=ON
-D ENABLE_NEON=ON
-D OPENCV_EXTRA_MODULES_PATH=~/opencv_contrib/modules
-D BUILD_EXAMPLES=ON ..

But ended up, with the following error

CMakeFiles/opencv_perf_imgproc.dir/__/imgproc/perf/opencl/perf_pyramid.cpp.o: file not recognized: File truncated
collect2: error: ld returned 1 exit status
modules/world/CMakeFiles/opencv_perf_imgproc.dir/build.make:1033: recipe for target 'bin/opencv_perf_imgproc' failed
make[2]: *** [bin/opencv_perf_imgproc] Error 1
CMakeFiles/Makefile2:5038: recipe for target 'modules/world/CMakeFiles/opencv_perf_imgproc.dir/all' failed
make[1]: *** [modules/world/CMakeFiles/opencv_perf_imgproc.dir/all] Error 2
Makefile:160: recipe for target 'all' failed
make: *** [all] Error 2

Hello! This checklist you've written is super super helpful, thank you for the work. A question for you, if you think you can figure out what's going on - I followed your directions line by line, but when running sudo make -j3, I get the following error:

[ 36%] Linking CXX shared library ../../lib/libopencv_videoio.so
[ 38%] Built target opencv_shape
/usr/bin/ld: /usr/local/lib/libx264.a(common.o): relocation R_ARM_MOVW_ABS_NC against `a local symbol' can not be used when making a shared object; recompile with -fPIC
/usr/local/lib/libx264.a: error adding symbols: Bad value
collect2: error: ld returned 1 exit status
modules/videoio/CMakeFiles/opencv_videoio.dir/build.make:227: recipe for target 'lib/libopencv_videoio.so.3.1.0' failed
make[2]: *** [lib/libopencv_videoio.so.3.1.0] Error 1
CMakeFiles/Makefile2:5832: recipe for target 'modules/videoio/CMakeFiles/opencv_videoio.dir/all' failed
make[1]: *** [modules/videoio/CMakeFiles/opencv_videoio.dir/all] Error 2
Makefile:160: recipe for target 'all' failed
make: *** [all] Error 2

Now, there's people that say you can get past this issue by just passing WITH_FFMPEG to false during the cmake step just before this - but I'm working with .avi files, so I can't just skip this because I'll need it to actually work. Any thoughts on how to fix this one?

Menu Assisted Opencv 3.2.0 Install https://github.com/pageauc/opencv3-setup

I have created a bash script that implements most of your steps using a whiptail menu. This allows a bit of an assist for users that might need help cutting and pasting commands into a terminal session. I did have lockup problem running make on a RPI3 with -j3 so changed to -j2 and seems to work better although slower. I have not tested this extensively on other RPI models. Raise an github issue if there are problems

I have credited your repo on the Readme.md

Thanks Claude Pageau

Hello!
In order to maximize success you should consider to insert a small guide on how to add more swap space to the Raspberry. I've been stuck for a lot of time because of the lack of RAM.

If you want I can insert a small guide into the existing file.

Bye,
Mattia.

The following error

The following packages have unmet dependencies:
libglib2.0-dev: Depends: libglib2.0-0 (= 2.24.0-0ubuntu4) but 2.24.1-0ubuntu1 is to be installed
E: Broken packages

Can be solved by
sudo aptitude install libglib2.0-dev

Then, it will be asked for downgrade some version

The following actions will resolve these dependencies:
Install the following packages:
libelfg0 [0.8.13-5 (now, oldstable)]
Downgrade the following packages:
libglib2.0-0 [2.48.0-1 bpo8+1 (now) -> 2.42.1-1 (oldstable)]
libglib2.0-bin [2.48.0-1 bpo8+1 (now) -> 2.42.1-1 (oldstable)]
Accept this solution? [Y/n/q/?]

And finally
sudo apt-get install libglib2.0-dev

FYI I have added credit for your work on my opencv3 menu assisted install project
https://github.com/pageauc/opencv3-setup
Thanks Claude ...