java调用opencv部署到centos7

1、官网下载opencv
https://opencv.org/releases/

2、下载opencv并解压 

unzip opencv-3.4.7.zip 
cd opencv-3.4.7
mkdir build
cd build/

3、安装cmake 

yum remove cmake -y ; yum install -y gcc gcc-c++ make automake openssl openssl-devel
wget https://cmake.org/files/v3.7/cmake-3.7.2.tar.gz ; tar -zxf cmake*.tar.gz
cd cmake* ; ./bootstrap ; gmake -j `grep 'processor' /proc/cpuinfo | wc -l` ; gmake install

4、链接

/usr/local/bin/cmake --version
ln -s /usr/local/bin/cmake /usr/bin/

5、检查cmake是否安装成功
cmake -version

6、编译opencv的java版本

yum install ant
cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -DBUILD_TESTS=OFF ..
make -j4
make install

7、

cp /usr/local/share/java/opencv4/libopencv_java452.so /usr/lib/

if (SystemUtils.IS_OS_WINDOWS) {
            System.out.println("windows启动OpenCV");
            String libName = "lib/opencv_java452.dll";
            URL url = ClassLoader.getSystemResource(libName);
            System.load(url.getPath());
} else if (SystemUtils.IS_OS_LINUX) {
            System.out.println("linux启动OpenCV");
            System.loadLibrary(Core.NATIVE_LIBRARY_NAME);
}