因为网络起因, 在国内编译Opencv十分的艰巨
openfans 提供了opencv-4.5.1-org.pifan_20210116-1_arm64.deb, 能够间接下载, 百度盘门路在: /树莓派爱好者基地64位零碎2.0正式版/Debian-Pi-Aarch64-2.0-Release/Extra/OpenCV/

筹备工作

mkdir /root/opencv/cd /root/opencv/

下载并解压

下载源代码

wget https://github.com/opencv/opencv/archive/refs/tags/4.5.2.zip -O opencv-4.5.2.zipwget https://github.com/opencv/opencv_contrib/archive/refs/tags/4.5.2.zip -O opencv_contrib-4.5.2.zipunzip opencv-4.5.2.zipunzip opencv_contrib-4.5.2.zip

下载必要文件

因为这地址无法访问, 会卡在下载环节

face_landmark_model.dat

wget https://raw.githubusercontent.com/opencv/opencv_3rdparty/8afa57abc8229d611c4937165d20e2a2d9fc5a12/face_landmark_model.dat -O face_landmark_model.datvim opencv_contrib-4.5.2/modules/face/CMakeLists.txt

将https://raw.githubusercontent.com/opencv/opencv_3rdparty/${__commit_hash}/改为file:///root/opencv/

ippicv_2020_lnx_intel64_20191018_general.tgz

这个树莓派无需下载/装置
wget https://raw.githubusercontent.com/opencv/opencv_3rdparty/a56b6ac6f030c312b2dce17430eef13aed9af274/ippicv/ippicv_2020_lnx_intel64_20191018_general.tgz -O ippicv_2020_lnx_intel64_20191018_general.tgzvim opencv-4.5.2/3rdparty/ippicv/ippicv.cmake

将"https://raw.githubusercontent.com/opencv/opencv_3rdparty/${IPPICV_COMMIT}/ippicv/"改为file:///root/opencv/

装置依赖

apt -y remove x264 libx264-dev## Install dependenciesapt -y install build-essential checkinstall cmake pkg-config yasmapt -y install libjpeg8-dev libjasper-dev libpng12-devapt -y install libtiff5-devapt -y install libavcodec-dev libavformat-dev libswscale-dev libdc1394-22-devapt -y install libxine2-dev libv4l-devcd /usr/include/linuxln -s -f ../libv4l1-videodev.h videodev.hcd $cwdapt -y install libgstreamer0.10-dev libgstreamer-plugins-base0.10-devapt -y install libgtk+-3.0-dev libgtk2.0-dev libtbb-devapt -y install libatlas-base-devapt -y install libmp3lame-dev libtheora-devapt -y install libvorbis-dev libxvidcore-dev libx264-devapt -y install libopencore-amrnb-dev libopencore-amrwb-devapt -y install libavresample-devapt -y install x264 v4l-utils# Optional dependenciesapt -y install libprotobuf-dev protobuf-compilerapt -y install libgoogle-glog-dev libgflags-devapt -y install libgphoto2-dev libeigen3-dev libhdf5-dev doxygen

创立编译目录

mkdir -p /root/opencv/opencv-4.5.2/build/cd /root/opencv/opencv-4.5.2/build/

配置

cmake \-D CMAKE_BUILD_TYPE=RELEASE \-D CMAKE_INSTALL_PREFIX=/usr/ \-D BUILD_SHARED_LIBS=ON \-D OPENCV_EXTRA_MODULES_PATH=/root/opencv/opencv_contrib-4.5.2/modules \-D BUILD_DOCS=OFF \-D BUILD_EXAMPLES=OFF \-D BUILD_TESTS=OFF \-D BUILD_PERF_TESTS=OFF \-D BUILD_opencv_java=NO \-D BUILD_opencv_python=NO \-D BUILD_opencv_python2=NO \-D BUILD_opencv_python3=NO \-D INSTALL_C_EXAMPLES=ON \-D INSTALL_PYTHON_EXAMPLES=ON \-D WITH_TBB=ON \-D WITH_V4L=ON \-D WITH_QT=OFF \-D WITH_OPENGL=OFF \-D ENABLE_NEON=ON \-D ENABLE_VFPV3=ON \-D WITH_JASPER=OFF \-D OPENCV_ENABLE_NONFREE=ON \-D CMAKE_SHARED_LINKER_FLAGS='-latomic' \-D OPENCV_GENERATE_PKGCONFIG=ON ..

编译&装置

make -j$(nproc)make install