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Python3 上的OpenCV库

Python3 上的OpenCV库​

  • 安装OpenCV的所需库
sudo apt-get install build-essential git cmake pkg-config -y
sudo apt-get install libjpeg8-dev -y
sudo apt-get install libtiff5-dev -y
sudo apt-get install libjasper-dev -y
sudo apt-get install libpng12-dev -y

sudo apt-get install libavcodec-dev libavformat-dev libswscale-dev libv4l-dev -y

sudo apt-get install libgtk2.0-dev -y
sudo apt-get install libatlas-base-dev gfortran -y

  • 下载OpenCV
cd /home/pi/Downloads

wget https://github.com/Itseez/opencv/archive/3.4.0.zip

wget https://github.com/Itseez/opencv_contrib/archive/3.4.0.zip

cd /home/pi/Downloads

unzip opencv-3.4.0.zip

unzip opencv_contrib-3.4.0.zip

  • 设置编译参数
cd /home/pi/Downloads/opencv-3.4.0
mkdir build
cd build

cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D INSTALL_C_EXAMPLES=ON -D INSTALL_PYTHON_EXAMPLES=ON -D OPENCV_EXTRA_MODULES_PATH=/home/pi/Downloads/opencv_contrib-3.4.0/modules -D BUILD_EXAMPLES=ON -D WITH_LIBV4L=ON PYTHON3_EXECUTABLE=/usr/bin/python3.5 PYTHON_INCLUDE_DIR=/usr/include/python3.5 PYTHON_LIBRARY=/usr/lib/arm-linux-gnueabihf/libpython3.5m.so PYTHON3_NUMPY_INCLUDE_DIRS=/home/pi/.local/lib/python3.5/site-packages/numpy/core/include ..

  • 编译
cd /home/pi/Downloads/opencv-3.4.0/build
make

sudo make install

  • 在Python3上测试OpenCV是否成功
import cv2
cv2.__version__