Mat cameraMatrix = new Mat(new Size(3,3), CvType.CV_64FC1);
    cameraMatrix.put(0,0,3275.907);
    cameraMatrix.put(0,1,0);
    cameraMatrix.put(0,2,2069.153);
    cameraMatrix.put(1,0,0);
    cameraMatrix.put(1,1,3270.752);
    cameraMatrix.put(1,2,1139.271);
    cameraMatrix.put(2,0,0);
    cameraMatrix.put(2,1,0);
    cameraMatrix.put(2,2,1);

Mat distortionMatrix = new Mat(new Size(4,1), CvType.CV_64FC1);
    distortionMatrix.put(0,0,-0.006934);
    distortionMatrix.put(0,1,-0.047680);
    distortionMatrix.put(0,2,0.002173);
    distortionMatrix.put(0,3,0.002580);

Mat map1 = new Mat();
    Mat map2 = new Mat();
    Mat temp = new Mat();
    Imgproc.initUndistortRectifyMap(cameraMatrix, distortionMatrix, temp, cameraMatrix, src.size(), CvType.CV_32FC1, map1, map2);

Imgproc.remap(mat, undistortPicture, map1, map2, Imgproc.INTER_LINEAR);