opencv - 如何从源代码构建 opencv java 库？

Question

我正在尝试使用 opencv 4.1.0 源代码为 android 构建 opencv java 库。我尝试使用build_sdk.pyandroid平台的源代码。我使用jre了Android Studio通过export JAVA_HOME=/AndroidStudio/jre并更改CMakeLists.txt了opencv：

OCV_OPTION(BUILD_SHARED_LIBS        "Build shared libraries (.dll/.so) instead of static ones (.lib/.a)" ON )
OCV_OPTION(BUILD_opencv_apps        "Build utility applications (used for example to train classifiers)" (NOT ANDROID AND NOT WINRT) IF (NOT APPLE_FRAMEWORK) )
OCV_OPTION(BUILD_opencv_js          "Build JavaScript bindings by Emscripten" OFF )
OCV_OPTION(BUILD_ANDROID_PROJECTS   "Build Android projects providing .apk files" OFF )
OCV_OPTION(BUILD_ANDROID_EXAMPLES   "Build examples for Android platform"         OFF )
OCV_OPTION(BUILD_DOCS               "Create build rules for OpenCV Documentation" OFF  IF (NOT WINRT AND NOT APPLE_FRAMEWORK))
OCV_OPTION(BUILD_EXAMPLES           "Build all examples"                          OFF )
OCV_OPTION(BUILD_PACKAGE            "Enables 'make package_source' command"       ON  IF NOT WINRT)
OCV_OPTION(BUILD_PERF_TESTS         "Build performance tests"                     NOT INSTALL_CREATE_DISTRIB  IF (NOT APPLE_FRAMEWORK) )
OCV_OPTION(BUILD_TESTS              "Build accuracy & regression tests"           NOT INSTALL_CREATE_DISTRIB  IF (NOT APPLE_FRAMEWORK) )
OCV_OPTION(BUILD_WITH_DEBUG_INFO    "Include debug info into release binaries ('OFF' means default settings)" OFF )
OCV_OPTION(BUILD_WITH_STATIC_CRT    "Enables use of statically linked CRT for statically linked OpenCV" ON IF MSVC )
OCV_OPTION(BUILD_WITH_DYNAMIC_IPP   "Enables dynamic linking of IPP (only for standalone IPP)" OFF )
OCV_OPTION(BUILD_FAT_JAVA_LIB       "Create Java wrapper exporting all functions of OpenCV library (requires static build of OpenCV modules)" ANDROID IF NOT BUILD_SHARED_LIBS)
OCV_OPTION(BUILD_ANDROID_SERVICE    "Build OpenCV Manager for Google Play" OFF IF ANDROID )
OCV_OPTION(BUILD_CUDA_STUBS         "Build CUDA modules stubs when no CUDA SDK" OFF  IF (NOT APPLE_FRAMEWORK) )
OCV_OPTION(BUILD_JAVA               "Enable Java support"                         ON )

android SDK并且在运行后使用ndk，目录只有一个空目录。我的配置有什么问题？如何正确地从源代码构建 java 库？Android Studio./build_sdk.py --ndk-path /Android/SDK/ndk/20.1.5948944 --sdk-path /Android/SDK /opencv /download/opencvOpenCV-android-sdk/sdk/java/javadoc

标签： opencvopencv4android