OpenCv库的精简

1.在window上用cmake编译opencv for Android

编译Android平台的opencv

这里贴一下他的编译指令

cmake -G "Unix Makefiles" -DCMAKE_TOOLCHAIN_FILE=..\..\android\android.toolchain.cmake ..\..\..

-DANDROID_NDK="D:\Android\sdk\ndk-bundle"

-DANDROID_TOOLCHAIN_NAME=arm-linux-androideabi-4.9

-DCMAKE_MAKE_PROGRAM="D:\Android\sdk\ndk-bundle\prebuilt\windows-x86_64\bin\make.exe"

-DCMAKE_BUILD_TYPE=Release

-DANDROID_ABI="armeabi"

-DANDROID_NATIVE_API_LEVEL=14

-DANDROID_FORCE_ARM_BUILD=ON

-DWITH_CAROTENE=OFF

-DWITH_CLP=OFF

-DWITH_CUBLAS=OFF

-DWITH_CUDA=OFF

-DWITH_CUFFT=OFF

-DWITH_EIGEN=OFF

-DWITH_GDCM=OFF

-DWITH_GSTREAMER_0_10=OFF

-DWITH_JASPER=OFF

-DWITH_JPEG=OFF

-DWITH_NVCUVID=OFF

-DWITH_OPENCL=OFF

-DWITH_OPENCL_SVM=OFF

-DWITH_OPENEXR=OFF

-DWITH_OPENMP=OFF

-DWITH_OPENVX=OFF

-DWITH_PNG=ON

-DWITH_PTHREADS_PF=OFF

-DWITH_TBB=OFF

-DWITH_TIFF=OFF

-DWITH_WEBP=OFF

-DBUILD_ANDROID_EXAMPLES=OFF

-DBUILD_ANDROID_SERVICE=OFF

-DBUILD_CUDA_STUBS=OFF

-DBUILD_DOCS=OFF

-DBUILD_EXAMPLES=OFF

-DBUILD_FAT_JAVA_LIB=OFF

-DBUILD_JASPER=OFF

-DBUILD_JPEG=OFF

-DBUILD_OPENEXR=OFF

-DBUILD_PACKAGE=OFF

-DBUILD_PERF_TESTS=OFF

-DBUILD_PNG=ON

-DBUILD_SHARED_LIBS=OFF

-DBUILD_TBB=OFF

-DBUILD_TESTS=OFF

-DBUILD_TIFF=OFF

-DBUILD_WITH_DEBUG_INFO=OFF

-DBUILD_WITH_DYNAMIC_IPP=OFF

-DBUILD_opencv_apps=OFF

-DBUILD_opencv_calib3d=ON

-DBUILD_ZLIB=ON

-DBUILD_opencv_core=ON

-DBUILD_opencv_features2d=ON

-DBUILD_opencv_flann=ON

-DBUILD_opencv_highgui=ON

-DBUILD_opencv_imgcodecs=ON

-DBUILD_opencv_imgproc=ON

-DBUILD_opencv_java=OFF

-DBUILD_opencv_ml=ON

-DBUILD_opencv_objdetect=OFF

-DBUILD_opencv_photo=OFF

-DBUILD_opencv_shape=OFF

-DBUILD_opencv_stitching=OFF

-DBUILD_opencv_stereo=OFF

-DBUILD_opencv_superres=OFF

-DBUILD_opencv_ts=OFF

-DBUILD_opencv_video=OFF

-DBUILD_opencv_videoio=OFF

-DBUILD_opencv_line_descriptor=OFF

-DBUILD_opencv_reg=OFF

-DBUILD_opencv_saliency=OFF

-DBUILD_opencv_videostab=OFF

-DBUILD_opencv_world=OFF

-DCMAKE_CXX_FLAGS="-ffunction-sections

-fdata-sections -fvisibility=hidden -O3 -std=c++11 -mfloat-abi=softfp -mfpu=neon -march=armv7-a -mtune=cortex-a8"

-DCMAKE_C_FLAGS="-ffunction-sections -fdata-sections -fvisibility=hidden -O3 -mfloat-abi=softfp -mfpu=neon -march=armv7-a -mtune=cortex-a8"

-DCMAKE_SHARED_LINKER_FLAGS="-Wl,--gc-sections"

-DBUILD_opencv_xfeatures2d=OFF

-DBUILD_opencv_face=OFF

-DBUILD_opencv_bgsegm=OFF

-DBUILD_opencv_datasets=OFF

-DBUILD_opencv_dpm=OFF

-DBUILD_opencv_tracking=OFF

-DBUILD_opencv_xobjdetect=OFF

-DBUILD_opencv_optflow=OFF

-DBUILD_opencv_tracking=OFF

-DENABLE_NEON=ON

-DOPENCV_EXTRA_MODULES_PATH="E:/opencv_contrib-3.2.0/modules"

-DBUILD_opencv_ximgproc=ON

-DBUILD_opencv_dnn=OFF

-DBUILD_opencv_structured_light=OFF

-DBUILD_opencv_surface_matching=OFF

-DBUILD_opencv_text=OFF

-DBUILD_opencv_xphoto=OFF

-DBUILD_opencv_fuzzy=OFF

-DBUILD_opencv_bioinspired=OFF

-DBUILD_opencv_phase_unwrapping=OFF

-DBUILD_opencv_plot=OFF

-DBUILD_opencv_rgbd=OFF

-DBUILD_opencv_aruco=OFF

2.编译出静态库供基本的使用

参考文章

opencv2.4.9:为caffe编译精简的opencv_core,opencv_imgproc,opencv_highgui全静态库

3.opencv的core库的裁剪

参考

OpenCV从入门到放弃(三):Core组件细讲

4.一些可能会用到的文章

opencv3.2+opencv_contrib+cmake （源码编译，编出来的是window的）

Android Studio Cmake & OpenCV3.2环境（基本集成，无源码编译）

使用Android Studio 2.2和Cmake （CMakeLists）让OpenCV 飞起来（基本集成，无源码编译）

ORB_SLAM2在Android上的移植过程 (Android Studio 2.2+OpenCV 3.2+Cmake)（如何集成其他的项目）

教你快速将大量代码文件加入到VS项目中

//待续