imageshuffle | It shuffles pixels | Machine Learning library

public ImageShuffle() throws MalformedURLException, IOException {
        img=ImageIO.read(new URL("https://wallpaper.dog/large/17167820.gif"));

        InputMap im = getInputMap(WHEN_FOCUSED);
        ActionMap am = getActionMap();

        im.put(KeyStroke.getKeyStroke(KeyEvent.VK_G, 0), "grey_image");

        am.put("grey_image", new AbstractAction() {
            @Override
            public void actionPerformed(ActionEvent e) {
                System.out.println("G pressed");

                for (int x = 0; x < img.getWidth(); x++) {
                    for (int y = 0; y < img.getHeight(); y++) {
                        Color color = new Color(img.getRGB(x, y));
                        int red = color.getRed();
                        int green = color.getGreen();
                        int blue = color.getBlue();
                        red = green = blue = (int)(red * 0.299 + green * 0.587 + blue * 0.114);
                        color = new Color(red, green, blue);
                        int rgb = color.getRGB();
                        img.setRGB(x, y, rgb);
                    }
                }
            }
        });
}