linux環境下編譯安裝opencv

時間  2021-01-19
標籤 html linux ios c++ git github ubuntu app ide 工具 欄目 Linux 简体版
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獲取opencv源碼 git clone git@github.com:opencv/opencv.git 獲取opencv_contrib源碼 git clone git@github.com:opencv/opencv_contrib.git 列舉全部tag git tag -l html

這裏以安裝3.4.7爲例 git checkout tags/3.4.7 linux

opencv_contrib一樣使用此方法檢出對應的版本源碼,注意版本號嚴格一致,不然會出現問題ios

爲了不污染文件,首先建立一個用於存放編譯產生文件的目錄 mkdir build cd buildc++

在該目錄下運行cmake cmake -DCMAKE_BUILD_TYPE=Release -DOPENCV_GENERATE_PKGCONFIG=ON -DCMAKE_INSTALL_PREFIX=/usr/local/opencv347 -DOPENCV_EXTRA_MODULES_PATH=../../opencv_contrib/modules/ ..git

  • -DOPENCV_GENERATE_PKGCONFIG=ON opencv4默認不生產pc文件,須要開啓此項
  • -DCMAKE_INSTALL_PREFIX=/usr/local/opencv347 opencv的安裝路徑,能夠省略,將安裝到默認/usr/local目錄
  • -DOPENCV_EXTRA_MODULES_PATH=../../opencv_contrib/modules/ 將 opencv 和 opencv_contrib 一塊兒編譯，若是不須要 opencv_contrib 能夠將此項去掉

而後是一段等待 github

成功後執行以下命令開始編譯,這裏開啓了8個線程 make -j8 ubuntu

可能會出現以下錯誤app

[  8%] Building CXX object 3rdparty/protobuf/CMakeFiles/libprotobuf.dir/src/google/protobuf/util/type_resolver_util.cc.o
[  8%] Building CXX object 3rdparty/protobuf/CMakeFiles/libprotobuf.dir/src/google/protobuf/wire_format.cc.o
[  8%] Building CXX object 3rdparty/protobuf/CMakeFiles/libprotobuf.dir/src/google/protobuf/wrappers.pb.cc.o
[  8%] Linking CXX static library ../lib/liblibprotobuf.a
make[2]: 離開目錄「/home/explorer/workbench/opensource/opencv/opencv/build」
[  8%] Built target libprotobuf
make[1]: 離開目錄「/home/explorer/workbench/opensource/opencv/opencv/build」
make: *** [Makefile:163：all] 錯誤 2

以及gcc fatal erroride

[  1%] Building C object 3rdparty/ippiw/CMakeFiles/ippiw.dir/src/iw_image.c.o
In file included from /home/explorer/workbench/opensource/opencv/opencv/modules/core/src/precomp.hpp:55,
                 from /home/explorer/workbench/opensource/opencv/opencv/build/modules/core/opencv_core_pch_dephelp.cxx:1:
/home/explorer/workbench/opensource/opencv/opencv/modules/core/include/opencv2/core/private.hpp:66:12: 致命錯誤：Eigen/Core：沒有那個文件或目錄
   66 | #  include <Eigen/Core>
      |            ^~~~~~~~~~~~
編譯中斷。
make[2]: *** [modules/core/CMakeFiles/opencv_core_pch_dephelp.dir/build.make:63：modules/core/CMakeFiles/opencv_core_pch_dephelp.dir/opencv_core_pch_dephelp.cxx.o] 錯誤 1
make[2]: 離開目錄「/home/explorer/workbench/opensource/opencv/opencv/build」
make[1]: *** [CMakeFiles/Makefile2:3978：modules/core/CMakeFiles/opencv_core_pch_dephelp.dir/all] 錯誤 2
make[1]: *** 正在等待未完成的任務....
[  1%] Building C object 3rdparty/ippiw/CMakeFiles/ippiw.dir/src/iw_image_color_convert_all.c.o
cc1: 警告：‘-Werror=’ argument ‘-Werror=non-virtual-dtor’ is not valid for C
cc1: 警告：‘-Werror=’ argument ‘-Werror=non-virtual-dtor’ is not valid for C
In file included from /home/explorer/workbench/opensource/opencv/opencv/modules/core/test/test_precomp.hpp:12,
                 from /home/explorer/workbench/opensource/opencv/opencv/build/modules/core/opencv_test_core_pch_dephelp.cxx:1:
/home/explorer/workbench/opensource/opencv/opencv/modules/core/include/opencv2/core/private.hpp:66:12: 致命錯誤：Eigen/Core：沒有那個文件或目錄
   66 | #  include <Eigen/Core>
      |            ^~~~~~~~~~~~
編譯中斷。
make[2]: *** [modules/core/CMakeFiles/opencv_test_core_pch_dephelp.dir/build.make:63：modules/core/CMakeFiles/opencv_test_core_pch_dephelp.dir/opencv_test_core_pch_dephelp.cxx.o] 錯誤 1
make[2]: 離開目錄「/home/explorer/workbench/opensource/opencv/opencv/build」
make[1]: *** [CMakeFiles/Makefile2:3868：modules/core/CMakeFiles/opencv_test_core_pch_dephelp.dir/all] 錯誤 2
[  1%] Building C object 3rdparty/ippiw/CMakeFiles/ippiw.dir/src/iw_image_color_convert_rgbs.c.o
cc1: 警告：‘-Werror=’ argument ‘-Werror=non-virtual-dtor’ is not valid for C
In file included from /home/explorer/workbench/opensource/opencv/opencv/modules/ts/src/precomp.hpp:4,
                 from /home/explorer/workbench/opensource/opencv/opencv/build/modules/ts/opencv_ts_pch_dephelp.cxx:1:
/home/explorer/workbench/opensource/opencv/opencv/modules/core/include/opencv2/core/private.hpp:66:12: 致命錯誤：Eigen/Core：沒有那個文件或目錄
   66 | #  include <Eigen/Core>
      |            ^~~~~~~~~~~~
編譯中斷。

解決辦法 sudo ln -s /usr/include/eigen3/Eigen /usr/include/Eigen工具

https://github.com/opencv/opencv/issues/14868

編譯到50%左右可能會遇到

libopencv_core.so.3.4.7: undefined reference to `cblas_dgemm'

https://github.com/opencv/opencv/issues/14323

cmake -D CMAKE_EXE_LINKER_FLAGS=-lcblas -D WITH_TBB=ON -D WITH_OPENMP=ON -D WITH_IPP=ON -D WITH_CUDA=OFF -D ENABLE_CXX11=1 -D BUILD_EXAMPLES=ON -DCMAKE_BUILD_TYPE=Release -DOPENCV_GENERATE_PKGCONFIG=ON -DCMAKE_INSTALL_PREFIX=/usr/local/opencv347 -DOPENCV_EXTRA_MODULES_PATH=../../opencv_contrib/modules/ ..

而後執行 sudo make install

配置

cd /etc/ld.so.conf.d/
sudo touch opencv347.conf
# 根據安裝位置
sudo sh -c 'echo "/usr/local/opencv347/lib" > opencv347.conf' 
sudo ldconfig

複製pc文件 sudo cp -f /usr/local/opencv347/lib/pkgconfig/opencv.pc /usr/lib/pkgconfig/opencv347.pc

測試一下 pkg-config --modversion opencv347

測試程序

cpp

#include <opencv2/core.hpp>
#include <iostream>

using namespace std;
using namespace cv;

int main(int argc, char **argv) {
    cout << "OpenCV version : " << CV_VERSION << endl;
    cout << "Major version : " << CV_MAJOR_VERSION << endl;
    cout << "Minor version : " << CV_MINOR_VERSION << endl;
    cout << "Subminor version : " << CV_SUBMINOR_VERSION << endl;
    return 0;
}

cmake

cmake_minimum_required(VERSION 3.14)
project(opencvhelloworld)

set(CMAKE_CXX_STANDARD 14)

find_package( OpenCV 3.4.7 REQUIRED )
add_executable(opencvhelloworld main.cpp)
target_link_libraries( opencvhelloworld ${OpenCV_LIBS} )

運行後能夠看到opencv版本號

cmakelist文件修改find_package( OpenCV 3.4.7 REQUIRED )能夠引入其餘版本

cmake

cmake_minimum_required(VERSION 3.14)
project(opencvhelloworld)

set(CMAKE_CXX_STANDARD 14)

find_package( OpenCV 4 REQUIRED )
add_executable(opencvhelloworld main.cpp)
target_link_libraries( opencvhelloworld ${OpenCV_LIBS} )

這個是經過pacman安裝的4.1.1,一樣能夠使用此方法引入

參考文獻

-- found Intel IPP (ICV version): 2019.0.0 [2019.0.0 Gold]
-- at: /home/explorer/workbench/opensource/opencvfromgit/opencv/build/3rdparty/ippicv/ippicv_lnx/icv
-- found Intel IPP Integration Wrappers sources: 2019.0.0
-- at: /home/explorer/workbench/opensource/opencvfromgit/opencv/build/3rdparty/ippicv/ippicv_lnx/iw
-- Could not find OpenBLAS lib. Turning OpenBLAS_FOUND off
-- Could NOT find Atlas (missing: Atlas_BLAS_LIBRARY) 
-- Looking for sgemm_
-- Looking for sgemm_ - not found
-- Looking for pthread.h
-- Looking for pthread.h - found
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Success
-- Found Threads: TRUE  
-- Looking for sgemm_
-- Looking for sgemm_ - found
-- Found BLAS: /lib64/libblas.so  
-- Looking for cheev_
-- Looking for cheev_ - not found
-- Looking for cheev_
-- Looking for cheev_ - found
-- A library with LAPACK API found.
-- LAPACK(LAPACK/Generic): LAPACK_LIBRARIES: /lib64/liblapack.so;/lib64/libblas.so
-- LAPACK(LAPACK/Generic): Support is enabled.
Scanning dependencies of target opencv_phase_unwrapping
Scanning dependencies of target opencv_imgcodecs
/usr/bin/ld: ../../lib/libopencv_core.so.3.4.7: undefined reference to `cblas_zgemm'
/usr/bin/ld: ../../lib/libopencv_core.so.3.4.7: undefined reference to `cblas_sgemm'
/usr/bin/ld: ../../lib/libopencv_core.so.3.4.7: undefined reference to `cblas_dgemm'
/usr/bin/ld: ../../lib/libopencv_core.so.3.4.7: undefined reference to `cblas_cgemm'
collect2: 錯誤：ld 返回 1
make[2]: *** [apps/version/CMakeFiles/opencv_version.dir/build.make:87：bin/opencv_version] 錯誤 1
make[2]: 離開目錄「/home/explorer/workbench/opensource/opencvfromgit/opencv/build」
make[1]: *** [CMakeFiles/Makefile2:20743：apps/version/CMakeFiles/opencv_version.dir/all] 錯誤 2
make[1]: *** 正在等待未完成的任務....
make[2]: 離開目錄「/home/explorer/workbench/opensource/opencvfromgit/opencv/build」
make[2]: 進入目錄「/home/explorer/workbench/opensource/opencvfromgit/opencv/build」
[ 29%] Building CXX object modules/phase_unwrapping/CMakeFiles/opencv_phase_unwrapping.dir/src/histogramphaseunwrapping.cpp.o
make[2]: 離開目錄「/home/explorer/workbench/opensource/opencvfromgit/opencv/build」
make[2]: 進入目錄「/home/explorer/workbench/opensource/opencvfromgit/opencv/build」
[ 29%] Building CXX object modules/imgcodecs/CMakeFiles/opencv_imgcodecs.dir/src/loadsave.cpp.o
[ 29%] Building CXX object modules/imgcodecs/CMakeFiles/opencv_imgcodecs.dir/src/utils.cpp.o
[ 29%] Building CXX object modules/imgcodecs/CMakeFiles/opencv_imgcodecs.dir/src/grfmt_base.cpp.o
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