3.3 KiB
3.3 KiB
手动编译OpenCV 和OpenCV_contrib android版本
安装编译工具
基础工具安装
sudo apt install build-essential python wget git python-pip
pip install ninja
sudo apt install ant libcurl4-gnutls-dev zlib1g-dev
cmake 安装
wget --no-check-certificate https://github.com/Kitware/CMake/releases/download/v3.22.1/cmake-3.22.1.tar.gz
tar -zxvf cmake-3.22.1.tar.gz
cd cmake-3.22.1
./bootstrap --system-curl
make -j8 # 8为CPU核心数
sudo make install
cmake --version #查看是否正常安装cmake
Ccache 安装
wget --no-check-certificate https://github.com/ccache/ccache/releases/download/v3.7.12/ccache-3.7.12.tar.gz
tar -zxvf ccache-3.7.12.tar.gz
cd ccache-3.7.12
./configure
make -j8 # 8为CPU核心数
sudo make install
Android sdk ndk Java jdk安装
- 下载SDK wget http://dl.google.com/android/android-sdk_r24.4.1-linux.tgz
- NDK JDK文件并解压文件,修改.bashrc文件，添加如下内容
export ANDROID_SDK=/home/ehigh/android_sdk #sdk路径
export PATH=$ANDROID_SDK/tools:$PATH
export ANDROID_NDK=/home/ehigh/android_ndk #ndk路径
export PATH=${PATH}:$ANDROID_NDK
export JAVA_HOME=/home/ehigh/java8 # jdk路径
export JRE_HOME=${JAVA_HOME}/jre
export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib
export PATH=${JAVA_HOME}/bin:$PATH
# 保存后执行 source .bashrc 使修改生效
android -h # 验证Android sdk 版本
- 安装需要的组件版本
android update sdk -u --all --filter 29,62
opencv 代码下载&& 配置
- 代码下载
mkdir android_opencv
cd android_opencv
git clone https://github.com/opencv/opencv_contrib.git
git clone https://github.com/opencv/opencv.git
- NDK配置修改 修改文件 /opencv/platforms/android/ndk-22.config.py ,修改GRADLE版本为Android项目的版本
ABIs = [
ABI("1", "arm64-v8a", None, cmake_vars=dict(ANDROID_GRADLE_PLUGIN_VERSION='4.2.0', GRADLE_VERSION='6.7.1', KOTLIN_PLUGIN_VERSION='1.5.0')),
]
-
编译配置修改
修改文件/opencv/platforms/android/build_sdk.py,修改cmake_var 为如下内容
def build_library(self, abi, do_install): cmd = [self.cmake_path, "-GNinja"] cmake_vars = dict( CMAKE_TOOLCHAIN_FILE=self.get_toolchain_file(), INSTALL_CREATE_DISTRIB="ON", WITH_OPENCL="OFF", BUILD_KOTLIN_EXTENSIONS="ON", WITH_IPP=("ON" if abi.haveIPP() else "OFF"), WITH_TBB="ON", OPENCV_ENABLE_NONFREE="ON", # 添加这一行,添加编译opencv_contrib BUILD_EXAMPLES="OFF", BUILD_TESTS="OFF", BUILD_PERF_TESTS="OFF", BUILD_DOCS="OFF", BUILD_ANDROID_EXAMPLES="ON", INSTALL_ANDROID_EXAMPLES="OFF", )
编译代码
cd android_opencv
mkdir opencv_build
cd opencv_build
python ../opencv/platforms/android/build_sdk.py --extra_modules_path=../opencv_contrib/modules/ --config /home/yewuya/opencv/platforms/android/ndk-22.config.py # ndk-17要与下载的ndk版本对应
- 编译完成后opencv_build 文件夹下的OpenCV-android-sdk 即为编译出来的结果