BB AI and OpenCV 3.3+

vlasov01 over 5 years ago

I know BB AI comes with OpenCV 3.2.

I'd like to use BB AI with OpenCV Deep Neural Networks (dnn module) on my project. It comes with OpenCV 3.3 or later.

I'm wondering if anyone was able to get OpenCV 3.3 or later for BB AI?

If yes, are you still benefiting from BB AI hardware accelerators?

Top Replies

ajcc over 5 years ago in reply to clem57 +1

Arguments given to su will be interpreted as usernames, you're thinking of sudo sudo python -c "import cv2; print(cv2.__version__)"
clem57 over 5 years ago in reply to ajcc +1

I was really thing su and next line your command under root of course. But sudo also...

Parents

vlasov01 over 5 years ago
I was able to build OpenCV 4.1.2 on BB AI.
(cv) debian@beaglebone:~$ python -c "import cv2; print(cv2.__version__)" 4.1.2
I'm not sure yet if it is using accelerators as I'm getting "TIOCL FATAL: Failed to open file /dev/mem" error when I'm calling dnn module from python.
Cancel
Vote Up 0 Vote Down

Sign in to reply

Cancel
clem57 over 5 years ago in reply to vlasov01

Use su before python command.
Cancel
Vote Up 0 Vote Down

Sign in to reply

Cancel
ajcc over 5 years ago in reply to clem57
Arguments given to su will be interpreted as usernames, you're thinking of sudo

sudo python -c "import cv2; print(cv2.__version__)"
Cancel
Vote Up +1 Vote Down

Sign in to reply

Cancel
clem57 over 5 years ago in reply to ajcc

I was really thing
su
and next line your command under root of course.
But sudo also...
Cancel
Vote Up +1 Vote Down

Sign in to reply

Cancel

vlasov01 over 5 years ago in reply to ajcc

Hi Adrian,

I'm using virtual python environment. And it was setup only for user debian. So when I run the command you suggested it is running it using a different version of OpenCV:

sudo python -c "import cv2; print(cv2.__version__)"
3.2.0

And I was looking for OpenCV 3.3+ as it has support for dnn.

I've tried another approach:

cd /home/debian/.virtualenvs/cv/bin/
sudo setcap cap_sys_rawio+ep python3

But it gave me another error:

******************************************************************
* FATAL ERROR:                                                   *
* This OpenCV build doesn't support current CPU/HW configuration *
*                                                                *
* Use OPENCV_DUMP_CONFIG=1 environment variable for details      *
******************************************************************

Required baseline features:
    ID=100 (NEON) - NOT AVAILABLE
terminate called after throwing an instance of 'cv::Exception'
  what():  OpenCV(4.1.2) /home/debian/opencv/modules/core/src/system.cpp:598: error: (-215:Assertion failed) Missing support for required CPU baseline features. Check OpenCV build configuration and required CPU/HW setup. in function 'initialize'

Aborted

And if I set OPENCV_DUMP_CONFIG=1 then I'm getting the followimng information about my OpenCV configuration:

OpenCV build configuration is:

General configuration for OpenCV 4.1.2 =====================================
  Version control:               unknown

  Extra modules:
    Location (extra):            /home/debian/opencv_contrib/modules
    Version control (extra):     unknown

  Platform:
    Timestamp:                   2019-10-27T02:57:31Z
    Host:                        Linux 4.14.108-ti-r122 armv7l
    CMake:                       3.7.2
    CMake generator:             Unix Makefiles
    CMake build tool:            /usr/bin/make
    Configuration:               RELEASE

  CPU/HW features:
    Baseline:                    NEON
      requested:                 DETECT
      required:                  NEON
      disabled:                  VFPV3

  C/C++:
    Built as dynamic libs?:      YES
    C++ Compiler:                /usr/bin/c++  (ver 6.3.0)
    C++ flags (Release):         -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winit-self -Wno-psabi -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -mfpu=neon -fvisibility=hidden -fvisibility-inlines-hidden -O3 -DNDEBUG  -DNDEBUG
    C++ flags (Debug):           -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winit-self -Wno-psabi -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -mfpu=neon -fvisibility=hidden -fvisibility-inlines-hidden -g  -O0 -DDEBUG -D_DEBUG
    C Compiler:                  /usr/bin/cc
    C flags (Release):           -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Winit-self -Wno-psabi -Wno-comment -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -mfpu=neon -fvisibility=hidden -O3 -DNDEBUG  -DNDEBUG
    C flags (Debug):             -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Winit-self -Wno-psabi -Wno-comment -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -mfpu=neon -fvisibility=hidden -g  -O0 -DDEBUG -D_DEBUG
    Linker flags (Release):      -Wl,--gc-sections
    Linker flags (Debug):        -Wl,--gc-sections
    ccache:                      NO
    Precompiled headers:         NO
    Extra dependencies:          dl m pthread rt
    3rdparty dependencies:

  OpenCV modules:
    To be built:                 aruco bgsegm bioinspired calib3d ccalib core datasets dnn dnn_objdetect dnn_superres dpm face features2d flann freetype fuzzy gapi hfs highgui img_hash imgcodecs imgproc line_descriptor ml objdetect optflow phase_unwrapping photo plot python3 quality reg rgbd saliency shape stereo stitching structured_light superres surface_matching text tracking ts video videoio videostab xfeatures2d ximgproc xobjdetect xphoto
    Disabled:                    world
    Disabled by dependency:      -
    Unavailable:                 cnn_3dobj cudaarithm cudabgsegm cudacodec cudafeatures2d cudafilters cudaimgproc cudalegacy cudaobjdetect cudaoptflow cudastereo cudawarping cudev cvv hdf java js matlab ovis python2 sfm viz
    Applications:                perf_tests apps
    Documentation:               NO
    Non-free algorithms:         YES

  GUI:
    GTK+:                        YES (ver 3.22.11)
      GThread :                  YES (ver 2.50.3)
      GtkGlExt:                  NO
    VTK support:                 NO

  Media I/O:
    ZLib:                        /usr/lib/arm-linux-gnueabihf/libz.so (ver 1.2.8)
    JPEG:                        /usr/lib/arm-linux-gnueabihf/libjpeg.so (ver 62)
    WEBP:                        build (ver encoder: 0x020e)
    PNG:                         /usr/lib/arm-linux-gnueabihf/libpng.so (ver 1.6.28)
    TIFF:                        /usr/lib/arm-linux-gnueabihf/libtiff.so (ver 42 / 4.0.8)
    JPEG 2000:                   build (ver 1.900.1)
    OpenEXR:                     /usr/lib/arm-linux-gnueabihf/libImath.so /usr/lib/arm-linux-gnueabihf/libIlmImf.so /usr/lib/arm-linux-gnueabihf/libIex.so /usr/lib/arm-linux-gnueabihf/libHalf.so /usr/lib/arm-linux-gnueabihf/libIlmThread.so (ver 2.2.0)
    HDR:                         YES
    SUNRASTER:                   YES
    PXM:                         YES
    PFM:                         YES

  Video I/O:
    DC1394:                      YES (2.2.5)
    FFMPEG:                      YES
      avcodec:                   YES (57.64.101)
      avformat:                  YES (57.56.101)
      avutil:                    YES (55.34.101)
      swscale:                   YES (4.2.100)
      avresample:                YES (3.1.0)
    GStreamer:                   NO
    v4l/v4l2:                    YES (linux/videodev2.h)

  Parallel framework:            pthreads

  Trace:                         YES (with Intel ITT)

  Other third-party libraries:
    Lapack:                      NO
    Eigen:                       NO
    Custom HAL:                  YES (carotene (ver 0.0.1))
    Protobuf:                    build (3.5.1)

  OpenCL:                        YES (no extra features)
    Include path:                /home/debian/opencv/3rdparty/include/opencl/1.2
    Link libraries:              Dynamic load

  Python 3:
    Interpreter:                 /home/debian/.virtualenvs/cv/bin/python3 (ver 3.5.3)
    Libraries:                   /usr/lib/arm-linux-gnueabihf/libpython3.5m.so (ver 3.5.3)
    numpy:                       /home/debian/.virtualenvs/cv/lib/python3.5/site-packages/numpy/core/include (ver 1.17.3)
    install path:                /home/debian/.virtualenvs/cv/lib/python3.5/site-packages/cv2/python-3.5

  Python (for build):            /usr/bin/python2.7

  Java:
    ant:                         NO
    JNI:                         NO
    Java wrappers:               NO
    Java tests:                  NO

  Install to:                    /usr/local
-----------------------------------------------------------------

Reply