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树莓派安装opencv4
source link: https://segmentfault.com/a/1190000040021525
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树莓派安装opencv4
尽量使用最新的树莓派Raspbian镜像，执行下面的命令更新系统库：
sudo apt update
sudo apt install -y libatlas-base-dev libjasper-dev libqtgui4 python3-pyqt5 libqt4-test libhdf5-devpip3安装opencv4，只是特定几个版本的opencv可以安装
sudo pip3 install opencv-contrib-python==4.1.0.25
# 或者
sudo pip3 install opencv-contrib-python==4.4.0.46python3 -c "import cv2;print(cv2.__version__)"Recommend
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