How to use Java with NDK Android?

Question

I am assuming that using the OpenCV code here: http://github.com/billmccord/OpenCV-Android#readme is the best way to use OpenCV on Android, with the NDK. I am still stuck as to how I get from the C definitions of functions to the ones I declare in OpenCV.java in my Android project ``` cvFindContours( void* img, CvMemStorage* storage, CvSeq** firstContour, int cntHeaderSize, int mode, int method, CvPoint offset ) --> findContours(int[] data, int w, int h) ) ``` Any help/pointers appreciated, even where to start to figure this out. I currently want to use `cvHoughCircles, cvHoughCircles(CvArr* image, void* circle_storage, int method, double dp, double min_dist, double param1 = 100, double param2 = 300, int min_radius = 0, int max_radius = 0};` How do I write this in java with ndk for android?

Accepted Answer

Does your app require the C interface? OpenCV actually considers it deprecated / done with, the new API is C++. A port of this interface and sample calibration app are here: http://code.google.com/p/android-opencv/

It took me a while to get sold on the new C++, but I had to admit it was nice to not have to do cvReleaseMat() and go back and forth between IplImage and CvMat all the time. Opencv 2.1 doc: http://opencv.willowgarage.com/documentation/cpp/index.html

How to use Java with NDK Android?

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