//Java part
ByteArrayOutputStream src_stream = new ByteArrayOutputStream();
mBitmap.compress(Bitmap.CompressFormat.PNG, 100, src_stream);
byte[] src_array = src_stream.toByteArray();
int[] src_mRGBA=new int[240*320];
WatershedSegmentation(240,320,src_array,,src_mRGBA); // JNI call


//JNI part
JNIEXPORT jintArray JNICALL Java_com_measure_sizemesurment2_MyView_WatershedSegmentation(
		JNIEnv* env, jobject thiz, jint width, jint height, jbyteArray s_yuv,jintArray s_bgra) {

	jbyte* _s_yuv = env->GetByteArrayElements(s_yuv, 0);
	jint* _s_bgra = env->GetIntArrayElements(s_bgra, 0);

	Mat sorcemyuv(height + height / 2, width, CV_8UC1, (unsigned char *) _s_yuv);
	Mat source(height, width, CV_8UC4, (unsigned char *) _s_bgra);

	cvtColor(sorcemyuv, source, CV_YUV420sp2BGR, 4);
	imwrite( "/sdcard/sorce.jpg", source );
}