how to compile OpenCV4Android on Ubuntu Eclipse with NDK

asked 2016-03-03 19:34:44 -0600

My platform: 1) Ubuntu 12.04 X86_64 2) eclipse-cpp-luna-SR2-linux-gtk-x86_64.tar.gz 3) cdt-8.6.0.zip 4) android-sdk_r24.4.1-linux.tgz 5) android-ndk-r10e-linux-x86_64.bin 6) ADT-23.0.6.zip 7) OpenCV-3.1.0-android-sdk.zip

I followed the steps on OpenCV official website to import OpenCV to Eclipse on Ubuntu: General--->Existing Projects into Workspace--->press Next button--->choose OpenCV-android-sdk/sdk fodler

My questions are: After OpenCV310 is imported to Eclipse, how to build OpenCV4Android.so for Android application? On OpenCV official website, there is no docs about how to compile OpenCV library for android application.

answered 2016-03-04 00:14:01 -0600

berak
32993 ●7 ●81 ●312

updated 2016-03-04 00:17:31 -0600

since you're trying to build OpenCV4Android, your previous steps setting up eclipse are irrelevant.

you will need the opencv src code from github, and build from there

https://github.com/Itseez/opencv/wiki...

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Comments

Hi,

I would like to include opencv_contrib in my opencv4android application on oepncv 3.1.0. what should I do for that? should I download opencv3.1.0 and opencv_contrib and rebuild them for Android? or opencv_contrib has already been included in opencv4android3.1.0.zip(libopencv_java3.so) from opencv official website?

ardeal ( 2016-03-06 23:19:36 -0600 )edit

no, those are not included in the prebuild opencv_java3.so, you additionally need opencv_contrib (see readme there) and build opencv4android from src.

berak ( 2016-03-07 01:01:45 -0600 )edit

Hi, as you know, I am not aware of how to bufild opencv and opencv_contrib src for Android. do you have any docs about how to do that?

ardeal ( 2016-03-07 01:21:59 -0600 )edit

sorry, i never tried that, so https://github.com/Itseez/opencv/wiki... is all i know.

berak ( 2016-03-07 01:25:56 -0600 )edit

Got it. Many thanks!

ardeal ( 2016-03-07 01:41:51 -0600 )edit

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