OpenCV Java API中 MatOfPoint MatOfPoint2f 互转

// MatOfPoint to MatOfPoint2f 
MatOfPoint src;
// initialize src
MatOfPoint2f dst = new MatOfPoint2f();
src.convertTo(dst, CvType.CV_32F);


// MatOfPoint2f to MatOfPoint 
MatOfPoint2f src;
// initialize src
MatOfPoint dst= new MatOfPoint();
src.convertTo(dst,CvType.CV_32S);