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# 下载
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wget https://cmake.org/files/v3.22/cmake-3.22.1.tar.gz
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# 解压
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tar -xvzf cmake-3.22.1.tar.gz
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# 设置环境变量
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vim /etc/profile
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# 末尾加上
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export CMAKE_HOME=/opt/cmake/cmake-3.5.2-Linux-x86_64/bin
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export PATH=$CMAKE_HOME:$PATH
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# 保存退出,刷新环境变量
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source /etc/profile
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# 检查
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cmake -version

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unzip opencv-4.5.5.zip
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cd opencv-4.5.5
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mkdir build
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cd build
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sudo cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local
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-D INSTALL_PYTHON_EXAMPLES=OFF -D INSTALL_C_EXAMPLES=OFF
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# 以下的路径要指定 **opencv_contririb包的路径**
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-D OPENCV_EXTRA_MODULES_PATH=/home/hf/Downloads/opencv_contrib-4.5.5/modules
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-D PYTHON_EXCUTABLE=/usr/bin/python3 -D BUILD_opencv_xfeatures2d=OFF
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-D BUILD_EXAMPLES=ON -D BUILD_TIFF=ON -D WITH_TIFF=ON -D WITH_OPENMP=ON -D WITH_FFMPEG=ON ..
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sudo make -j4
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sudo make install
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sudo sh -c 'echo "/usr/local/lib" >> /etc/ld.so.conf.d/opencv.conf'
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sudo ldconfig
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# 验证安装是否成功
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pkg-config --modversion opencv