Convolución con opencv

public class Convolucion {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
        System.out.println("Cargar y mostrar imagen: ");
        System.loadLibrary("opencv_java247");
        System.out.println("Librería: "+Core.NATIVE_LIBRARY_NAME +" Version: " +Core.VERSION);
        //Convolucion c = new Convolucion();
        new Procesar();
    }
}

class Procesar{
    URL img_url = getClass().getResource("/resources/picasso.jpg");
    String ruta = img_url.getPath();

    public void Procesar(){
        Mat imagen;
        if (ruta.startsWith("/")) {
            ruta = ruta.substring(1);
        }
        imagen = Highgui.imread(ruta,Highgui.CV_LOAD_IMAGE_COLOR);
        if(!imagen.empty()){
            Image imagenMostrar = convertir(imagen);
            int width=imagenMostrar.getWidth(null);
            int height=imagenMostrar.getHeight(null);
            Ventana ventana = new Ventana(imagenMostrar);
            ventana.setSize(width,height);
            ventana.setLocationRelativeTo(null);
            ventana.setVisible(true);
        }
    }

    private Image convertir(Mat imagen) {
        MatOfByte matOfByte = new MatOfByte();
        Highgui.imencode(".jpg", imagen, matOfByte);

        byte[] byteArray = matOfByte.toArray();
        BufferedImage bufImage = null;

        try {
            InputStream in = new ByteArrayInputStream(byteArray);
            bufImage = ImageIO.read(in);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return (Image)bufImage;
        }
    }