I have recently download opencv2.4.9 source code and I organize it as 
I have try to find some native methods for java api ,and I can find native methods implementation in jniwrapper(I copy files from opencv-2.4.9/modules/java/generator/src/cpp) for org.opencv.core java package. But I can't find for org.opencv.imgproc package. Where can I find for this ?