E.G. of flipping an image horizontally using an
AffineTransform.
import java.awt.*;import java.awt.geom.AffineTransform;import java.awt.image.BufferedImage;import javax.swing.*;public class Test001 { public static BufferedImage getFlippedImage(BufferedImage bi) { BufferedImage flipped = new BufferedImage( bi.getWidth(), bi.getHeight(), bi.getType()); AffineTransform tran = AffineTransform.getTranslateInstance(bi.getWidth(), 0); AffineTransform flip = AffineTransform.getScaleInstance(-1d, 1d); tran.concatenate(flip); Graphics2D g = flipped.createGraphics(); g.setTransform(tran); g.drawImage(bi, 0, 0, null); g.dispose(); return flipped; } Test001(BufferedImage bi) { JPanel gui = new JPanel(new GridLayout(1,2,2,2)); gui.add(new JLabel(new ImageIcon(bi))); gui.add(new JLabel(new ImageIcon(getFlippedImage(bi)))); JOptionPane.showMessageDialog(null, gui); } public static void main(String[] args) throws AWTException { final Robot robot = new Robot(); Runnable r = new Runnable() { @Override public void run() { final BufferedImage bi = robot.createScreenCapture( new Rectangle(0, 360, 200, 100)); new Test001(bi); } }; SwingUtilities.invokeLater(r); }}
