邱棚 2a3c57124d | ||
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opencv-4.2.0 | ||
opencv_contrib-4.2.0 | ||
.gitignore | ||
README.md | ||
copy_opencv_files.sh | ||
create_opencv_symlinks.sh |
README.md
在ROS中重新编译和配置OpenCV 4.2版本
背景问题
- GTK的依赖与ORB中的GTK依赖有冲突。
- 如果需要新增加模块且不希望系统中有多份OpenCV,可以按照以下方法重新编译OpenCV并重置系统中的OpenCV。
步骤
1. 下载OpenCV源码和OpenCV-contrib源码
- OpenCV: opencv 4.2.0 或者 GitHub
- OpenCV-contrib: GitHub
2. 编译OpenCV和contrib库
推荐安装cmake-gui:
sudo apt-get install cmake-gui
2.1 更改CMakeList
opencv/3rdparty/carotene/CMakeList.txt
将以下内容添加到文件中:set_source_files_properties(${carotene_sources} COMPILE_FLAGS "--param ipa-cp-unit-growth=100000 --param inline-unit-growth=100000 --param large-stack-frame-growth=5000")
opencv_contrib/modules/sfm/src/libmv_light/libmv/multiview/CMakeLists.txt
将以下内容添加到文件中:set(CMAKE_CXX_STANDARD 14) set(CMAKE_CXX_STANDARD_REQUIRED ON) ``
2.2 配置CMake编译选项
选择安装模块和安装路径,注意路径不要设置为系统路径,后面会手动拷贝到系统目录中:
cmake -DOPENCV_EXTRA_MODULES_PATH=../../opencv_contrib/modules-4.2.0/modules \
-DOPENCV_GENERATE_PKGCONFIG=TRUE \
-DCMAKE_INSTALL_PREFIX=/home/autolabor/ThirdParty/opencv-build \
-DBUILD_TESTS=OFF \
-DCMAKE_CXX_STANDARD=11
-DCMAKE_CXX_STANDARD_REQUIRED=ON..
或者通过cmake-gui选择这些编译选项
2.3 编译和安装
sudo make install -j8
3. 覆盖系统OpenCV库
3.1 拷贝文件夹内容
分别将右侧的bin
、include
、lib
、share
中的内容拷贝到:
sudo cp -r /home/autolabor/ThirdParty/opencv-build/build/bin/* /usr/bin/
sudo cp -r /home/autolabor/ThirdParty/opencv-build/build/include/opencv4 /usr/include/
sudo cp -r /home/autolabor/ThirdParty/opencv-build/build/share/opencv4 /usr/share/
sudo cp /home/autolabor/ThirdParty/opencv-build/build/lib/*.4.2.0 /usr/lib/aarch64-linux-gnu/
3.2 创建软链接脚本
执行create_link.sh
脚本,添加so库的链接 *.so -> *.so.4.2
, *.so.4.2 -> *.so.4.2.0
3.3 配置pkgconfig
拷贝opencv4.pc
文件到/usr/lib/aarch64-linux-gnu/pkgconfig/
中:
sudo cp /home/autolabor/ThirdParty/opencv-build/build/lib/pkgconfig/opencv4.pc /usr/lib/aarch64-linux-gnu/pkgconfig/
使用pkg-config --modversion opencv4
,检查是否配置成功,正常能看到4.2.0的输出了。
3.4 配置CMake文件
- 拷贝Opencv的CMake文件到
/usr/lib/aarch64-linux-gnu/cmake/
中:sudo cp -r /home/autolabor/ThirdParty/opencv-build/build/lib/cmake/opencv4 /usr/lib/aarch64-linux-gnu/cmake/
- 修改
OpenCVConfig.cmake
文件,将OpenCV_INSTALL_PATH
目录多添加一层../
,即指向/usr
。 - 修改
OpenCVModules-release.cmake
文件,将所有的/lib/
替换为/aarch64-linux-gnu/
。
这样就完成了CMake的配置,在调用find_package(OpenCV)
时,会调用这几个CMake文件。
3.5 配置Python
拷贝python3.8和python2.7调用的动态连接库:
sudo cp /home/autolabor/ThirdParty/opencv-build/build/lib/python3.8/dist-packages/cv2/python3.8/*.so /usr/lib/python3.8/dist-packages/cv2/python3.8/
sudo cp /home/autolabor/ThirdParty/opencv-build/build/lib/python2.7/dist-packages/cv2/python2.7/*.so /usr/lib/python2.7/dist-packages/cv2/python2.7/
此时,就可以在Python中调用import cv2
了。