public static extern void cvDilate(__CvArrPtr src, __CvArrPtr dst, __IplConvKernelPtr element /* CV_DEFAULT(NULL) */, int iterations /* CV_DEFAULT(1) */);
public static extern void cvMorphologyEx(__CvArrPtr src, __CvArrPtr dst, __CvArrPtr temp, __IplConvKernelPtr element, int operation, int iterations /* CV_DEFAULT(1) */);
public static extern void cvReleaseStructuringElement(__IplConvKernelPtr element);