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build OpenCV 3.1 for android with openCL support

Hi All!

I tried OpenCL on my OpenCV project and the result is a huge improvement in terms of performance so I would like to try OpenCL on android.

I use this article to guide me. Here is my cmake command:

cmake -GNinja -DCMAKE_MAKE_PROGRAM="/usr/bin/ninja" -DCMAKE_TOOLCHAIN_FILE="../opencv-3.1.0/platforms/android/android.toolchain.cmake" -DCMAKE_BUILD_WITH_INSTALL_RPATH=ON  -DWITH_OPENCL=YES -DANDROID_ABI="armeabi-v7a" ../opencv-3.1.0

and I use this command

ninja install/strip

I have no errors neither on compilation nor installation. And an install folder has been created. I think all is perfectly fine except that I can't find the file !!!!! so:

  1. Do you know how I can generate ?
  2. Do you know how I can target several abis ? I tried -DANDROID_ABI="armeabi-v7a" -DANDROID_ABI="x86" and -DANDROID_ABI="armeabi-v7a x86" but it is not correct.

Thank you !