编译 Android 平台的 OpenCV 动态库并开启 OCL 模块

修改 ${opencv_home}/platforms/scripts/cmake_android_arm.sh 文件，添加编译选项 -DBUILD_SHARED_LIBS=ON 和 -DWITH_OPENCL=ON

修改 ${opencv_home}/cmake/OpenCVDetectOpenCL.cmake

set(OPENCL_FOUND YES)
set(OPENCL_INCLUDE_DIR "path1")　 // path1 是OCL头文件所在的路径。
set(OPENCL_LIBRARY "path2")　　　　// path2 是OCL库文件的路径，这个和设备相关。

修改 ${opencv_home}/CMakeLists.txt

OCV_OPTION(WITH_OPENCL "Include OpenCL Runtime support" ON IF (NOT IOS) )