OpenCV 4.1.1 - Successful procedure

[tadam98]

Hi,

I have successfully compiled and installed OpenCV 4.1.1 for both Python2 and Python3 environments.

1. Follow: https://qengineering.eu/install-opencv-4.1-on-raspberry-pi-4.html
2. The paths of the above procedure need to be updated for BerryConda as follows:
   -D PYTHON3_LIBRARY=/home/pi/berryconda3/lib/libpython3.6m.so
   -D PYTHON3_PACKAGES_PATH=/home/pi/berryconda3/lib/python3.6/site-packages
   -D BUILD_opencv_python3=TRUE
   -D BUILD_opencv_python2=YES
   CMAKE-OpenCV-4.1.1.txt
   

Notes: Unlike all other OpenCV procedures I tried - they all miss sys/videoio.h - this one works well.

[Firemanpl]

How??? Idan't do that.

pi@raspberrypi:~/opencv/build $ cmake -D CMAKE_BUILD_TYPE=RELEASE \
>     -D CMAKE_INSTALL_PREFIX=/usr/local \
>     -D OPENCV_EXTRA_MODULES_PATH=~/opencv_contrib/modules \
>     -D PYTHON3_LIBRARY=/home/pi/berryconda3/lib/libpython3.6m.so \
>     -D PYTHON3_PACKAGES_PATH=/home/pi/berryconda3/lib/python3.6/site-packages \
>     -D BUILD_opencv_python3=TRUE \
>     -D BUILD_opencv_python2=YES \
>     -D ENABLE_NEON=ON \
>     -D ENABLE_VFPV3=ON \
>     -D BUILD_TIFF=ON \
>     -D WITH_FFMPEG=ON \
>     -D WITH_GSTREAMER=ON \
>     -D WITH_TBB=ON \
>     -D BUILD_TBB=ON \
>     -D BUILD_TESTS=OFF \
>     -D WITH_EIGEN=OFF \
>     -D WITH_V4L=ON \
>     -D WITH_LIBV4L=ON \
>     -D WITH_VTK=OFF \
>     -D CMAKE_SHARED_LINKER_FLAGS=-latomic \
>     -D OPENCV_ENABLE_NONFREE=ON \
>     -D INSTALL_C_EXAMPLES=OFF \
>     -D INSTALL_PYTHON_EXAMPLES=OFF \
>     -D BUILD_NEW_PYTHON_SUPPORT=ON \
>     -D BUILD_opencv_python3=TRUE \
>     -D OPENCV_GENERATE_PKGCONFIG=ON \
>     -D BUILD_EXAMPLES=OFF ..
-- Detected processor: armv7l
-- Looking for ccache - not found
-- Found ZLIB: /usr/lib/arm-linux-gnueabihf/libz.so (found suitable version "1.2.11", minimum required is "1.2.3") 
-- Could NOT find OpenJPEG (minimal suitable version: 2.0, recommended version >= 2.3.1)
-- Found ZLIB: /usr/lib/arm-linux-gnueabihf/libz.so (found version "1.2.11") 
-- Could not find OpenBLAS include. Turning OpenBLAS_FOUND off
-- Could not find OpenBLAS lib. Turning OpenBLAS_FOUND off
-- Could NOT find Atlas (missing: Atlas_CLAPACK_INCLUDE_DIR) 
-- A library with LAPACK API found.
-- Could NOT find JNI (missing: JAVA_AWT_LIBRARY JAVA_JVM_LIBRARY JAVA_INCLUDE_PATH JAVA_INCLUDE_PATH2 JAVA_AWT_INCLUDE_PATH) 
-- OpenCV Python: during development append to PYTHONPATH: /home/pi/opencv/build/python_loader
-- Checking for module 'libavresample'
--   No package 'libavresample' found
-- Checking for module 'gstreamer-base-1.0'
--   No package 'gstreamer-base-1.0' found
-- Checking for module 'gstreamer-app-1.0'
--   No package 'gstreamer-app-1.0' found
-- Checking for module 'gstreamer-riff-1.0'
--   No package 'gstreamer-riff-1.0' found
-- Checking for module 'gstreamer-pbutils-1.0'
--   No package 'gstreamer-pbutils-1.0' found
-- Checking for module 'libdc1394-2'
--   No package 'libdc1394-2' found
-- Module opencv_alphamat disabled because the following dependencies are not found: Eigen
-- Caffe:   NO
-- Protobuf:   NO
-- Glog:   NO
-- freetype2:   YES (ver 22.1.16)
-- harfbuzz:    YES (ver 2.3.1)
-- HDF5: Using hdf5 compiler wrapper to determine C configuration
-- Module opencv_ovis disabled because OGRE3D was not found
-- No preference for use of exported gflags CMake configuration set, and no hints for include/library directories provided. Defaulting to preferring an installed/exported gflags CMake configuration if available.
-- Failed to find installed gflags CMake configuration, searching for gflags build directories exported with CMake.
-- Failed to find gflags - Failed to find an installed/exported CMake configuration for gflags, will perform search for installed gflags components.
-- Failed to find gflags - Could not find gflags include directory, set GFLAGS_INCLUDE_DIR to directory containing gflags/gflags.h
-- Failed to find glog - Could not find glog include directory, set GLOG_INCLUDE_DIR to directory containing glog/logging.h
-- Module opencv_sfm disabled because the following dependencies are not found: Eigen Glog/Gflags
-- Checking for module 'tesseract'
--   No package 'tesseract' found
-- Tesseract:   NO
-- Allocator metrics storage type: 'int'
-- HDF5: Using hdf5 compiler wrapper to determine C configuration
-- Excluding from source files list: modules/imgproc/src/corner.avx.cpp
-- Excluding from source files list: modules/imgproc/src/imgwarp.avx2.cpp
-- Excluding from source files list: modules/imgproc/src/imgwarp.sse4_1.cpp
-- Excluding from source files list: modules/imgproc/src/resize.avx2.cpp
-- Excluding from source files list: modules/imgproc/src/resize.sse4_1.cpp
-- Registering hook 'INIT_MODULE_SOURCES_opencv_dnn': /home/pi/opencv/modules/dnn/cmake/hooks/INIT_MODULE_SOURCES_opencv_dnn.cmake
-- opencv_dnn: filter out cuda4dnn source code
-- Excluding from source files list: <BUILD>/modules/dnn/layers/layers_common.avx.cpp
-- Excluding from source files list: <BUILD>/modules/dnn/layers/layers_common.avx2.cpp
-- Excluding from source files list: <BUILD>/modules/dnn/layers/layers_common.avx512_skx.cpp
-- Excluding from source files list: modules/features2d/src/fast.avx2.cpp
-- 
-- General configuration for OpenCV 4.3.0 =====================================
--   Version control:               unknown
-- 
--   Extra modules:
--     Location (extra):            /home/pi/opencv_contrib/modules
--     Version control (extra):     unknown
-- 
--   Platform:
--     Timestamp:                   2020-07-03T08:08:53Z
--     Host:                        Linux 4.19.118-v7l+ armv7l
--     CMake:                       3.13.4
--     CMake generator:             Unix Makefiles
--     CMake build tool:            /usr/bin/make
--     Configuration:               RELEASE
-- 
--   CPU/HW features:
--     Baseline:                    VFPV3 NEON
--       requested:                 DETECT
--       required:                  VFPV3 NEON
-- 
--   C/C++:
--     Built as dynamic libs?:      YES
--     C++ standard:                11
--     C++ Compiler:                /usr/bin/c++  (ver 8.3.0)
--     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 -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -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 -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -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-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -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-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -mfpu=neon -fvisibility=hidden -g  -O0 -DDEBUG -D_DEBUG
--     Linker flags (Release):      -latomic  -Wl,--gc-sections -Wl,--as-needed  
--     Linker flags (Debug):        -latomic  -Wl,--gc-sections -Wl,--as-needed  
--     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 hdf hfs highgui img_hash imgcodecs imgproc intensity_transform line_descriptor ml objdetect optflow phase_unwrapping photo plot python2 quality rapid 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:                 alphamat cnn_3dobj cudaarithm cudabgsegm cudacodec cudafeatures2d cudafilters cudaimgproc cudalegacy cudaobjdetect cudaoptflow cudastereo cudawarping cudev cvv java js matlab ovis python3 sfm viz
--     Applications:                perf_tests apps
--     Documentation:               NO
--     Non-free algorithms:         YES
-- 
--   GUI: 
--     GTK+:                        YES (ver 3.24.5)
--       GThread :                  YES (ver 2.58.3)
--       GtkGlExt:                  NO
-- 
--   Media I/O: 
--     ZLib:                        /usr/lib/arm-linux-gnueabihf/libz.so (ver 1.2.11)
--     JPEG:                        /usr/lib/arm-linux-gnueabihf/libjpeg.so (ver 62)
--     WEBP:                        build (ver encoder: 0x020f)
--     PNG:                         /usr/lib/arm-linux-gnueabihf/libpng.so (ver 1.6.36)
--     TIFF:                        build (ver 42 - 4.0.10)
--     JPEG 2000:                   /usr/lib/arm-linux-gnueabihf/libjasper.so (ver 1.900.1)
--     OpenEXR:                     build (ver 2.3.0)
--     HDR:                         YES
--     SUNRASTER:                   YES
--     PXM:                         YES
--     PFM:                         YES
-- 
--   Video I/O:
--     DC1394:                      NO
--     FFMPEG:                      YES
--       avcodec:                   YES (58.35.100)
--       avformat:                  YES (58.20.100)
--       avutil:                    YES (56.22.100)
--       swscale:                   YES (5.3.100)
--       avresample:                NO
--     GStreamer:                   NO
--     v4l/v4l2:                    YES (linux/videodev2.h)
-- 
--   Parallel framework:            TBB (ver 2020.1 interface 11101)
-- 
--   Trace:                         YES (with Intel ITT)
-- 
--   Other third-party libraries:
--     Lapack:                      NO
--     Custom HAL:                  YES (carotene (ver 0.0.1))
--     Protobuf:                    build (3.5.1)
-- 
--   OpenCL:                        YES (no extra features)
--     Include path:                /home/pi/opencv/3rdparty/include/opencl/1.2
--     Link libraries:              Dynamic load
-- 
--   Python 2:
--     Interpreter:                 /usr/bin/python2.7 (ver 2.7.16)
--     Libraries:                   /usr/lib/arm-linux-gnueabihf/libpython2.7.so (ver 2.7.16)
--     numpy:                       /usr/lib/python2.7/dist-packages/numpy/core/include (ver 1.16.2)
--     install path:                lib/python2.7/dist-packages/cv2/python-2.7
-- 
--   Python 3:
--     Interpreter:                 /home/pi/berryconda3/bin/python3 (ver 3.6.1)
--     Libraries:                   NO
--     numpy:                       NO (Python3 wrappers can not be generated)
--     install path:                -
-- 
--   Python (for build):            /usr/bin/python2.7
-- 
--   Java:                          
--     ant:                         NO
--     JNI:                         NO
--     Java wrappers:               NO
--     Java tests:                  NO
-- 
--   Install to:                    /usr/local
-- -----------------------------------------------------------------
-- 
-- Configuring done
-- Generating done
-- Build files have been written to: /home/pi/opencv/build

[Firemanpl]

I used newest version. link