Example usage for java.awt.image BufferedImage BufferedImage

Introduction

In this page you can find the example usage for java.awt.image BufferedImage BufferedImage.

Prototype

public BufferedImage(int width, int height, int imageType) 

Source Link

Document

Constructs a BufferedImage of one of the predefined image types.

Usage

From source file:Main.java

public static void main(String[] args) throws Exception {
    String text = "java2s.com";

    BufferedImage img = new BufferedImage(1, 1, BufferedImage.TYPE_INT_ARGB);
    Graphics2D g2d = img.createGraphics();
    Font font = new Font("Arial", Font.PLAIN, 48);
    g2d.setFont(font);/*from  w w  w.ja va2 s .  c  om*/
    FontMetrics fm = g2d.getFontMetrics();
    int width = fm.stringWidth(text);
    int height = fm.getHeight();
    g2d.dispose();

    img = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
    g2d = img.createGraphics();
    g2d.setRenderingHint(RenderingHints.KEY_ALPHA_INTERPOLATION,
            RenderingHints.VALUE_ALPHA_INTERPOLATION_QUALITY);
    g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    g2d.setRenderingHint(RenderingHints.KEY_COLOR_RENDERING, RenderingHints.VALUE_COLOR_RENDER_QUALITY);
    g2d.setRenderingHint(RenderingHints.KEY_DITHERING, RenderingHints.VALUE_DITHER_ENABLE);
    g2d.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS, RenderingHints.VALUE_FRACTIONALMETRICS_ON);
    g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
    g2d.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
    g2d.setRenderingHint(RenderingHints.KEY_STROKE_CONTROL, RenderingHints.VALUE_STROKE_PURE);
    g2d.setFont(font);
    fm = g2d.getFontMetrics();
    g2d.setColor(Color.BLACK);
    g2d.drawString(text, 0, fm.getAscent());
    g2d.dispose();

    ImageIO.write(img, "png", new File("Text.png"));

}

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From source file:Main.java

public static void main(String[] args) {
    JPanel gui = new JPanel(new BorderLayout(2, 2));
    BufferedImage bi = new BufferedImage(600, 200, BufferedImage.TYPE_INT_RGB);
    gui.add(new JLabel(new ImageIcon(bi)));

    JFrame myframe = new JFrame();
    JPanel myPanel = new JPanel();
    gui.add(myPanel, BorderLayout.PAGE_END);
    myPanel.setLayout(new GridLayout(2, 0, 0, 0));

    int x = 0;//from  ww w  .j a  v  a 2 s  .  c  o m
    int y = 5;

    for (char alphabet = 'A'; alphabet <= 'Z'; alphabet++) {
        myPanel.add(new JButton(alphabet + ""));
        x++;
        if (x > 15) {
            y = 6;
            x = 0;
        }
    }
    myframe.add(gui);
    myframe.pack();
    myframe.setVisible(true);

    myframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}

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From source file:Main.java

public static void main(String[] args) {
    String s = "The quick brown fox jumps over the lazy dog!";
    BufferedImage bi = new BufferedImage(1, 1, BufferedImage.TYPE_INT_RGB);
    Graphics g = bi.getGraphics();
    FontMetrics fm = g.getFontMetrics();
    Rectangle2D b = fm.getStringBounds(s, g);
    System.out.println(b);//  w w w  . ja v  a  2s .com
    bi = new BufferedImage((int) b.getWidth(), (int) (b.getHeight() + fm.getDescent()),
            BufferedImage.TYPE_INT_RGB);
    g = bi.getGraphics();
    g.drawString(s, 0, (int) b.getHeight());

    JOptionPane.showMessageDialog(null, new JLabel(new ImageIcon(bi)));

    // Technique 3 - JLabel
    JLabel l = new JLabel(s);
    l.setSize(l.getPreferredSize());
    bi = new BufferedImage(l.getWidth(), l.getHeight(), BufferedImage.TYPE_INT_RGB);
    g = bi.getGraphics();
    g.setColor(Color.WHITE);
    g.fillRect(0, 0, 400, 100);
    l.paint(g);

    JOptionPane.showMessageDialog(null, new JLabel(new ImageIcon(bi)));
}

---

From source file:Main.java

public static void main(String[] args) throws IOException {

    final int SCALE = 2;

    Image img = new ImageIcon(new URL("http://www.java2s.com/style/download.png")).getImage();

    BufferedImage bi = new BufferedImage(SCALE * img.getWidth(null), SCALE * img.getHeight(null),
            BufferedImage.TYPE_INT_ARGB);

    Graphics2D grph = (Graphics2D) bi.getGraphics();
    grph.scale(SCALE, SCALE);/*from w  ww.  java  2  s.  c  om*/

    grph.drawImage(img, 0, 0, null);
    grph.dispose();

    ImageIO.write(bi, "png", new File("double_size.png"));
}

---

From source file:Main.java

public static void main(String[] args) throws Exception {
    BufferedImage img = new BufferedImage(100, 100, BufferedImage.TYPE_INT_RGB);

    Graphics g = img.getGraphics();
    g.setColor(Color.red);/* w  w  w.j a  v a  2 s. co m*/
    g.setFont(new Font("Arial", Font.BOLD, 14));
    g.drawString("Reference", 10, 80);

    int w = 100;
    int h = 100;
    int x = 1;
    int y = 1;

    int[] pixels = new int[w * h];
    PixelGrabber pg = new PixelGrabber(img, x, y, w, h, pixels, 0, w);

    pg.grabPixels();
    BufferedImage bimg = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);

    for (int j = 0; j < h; j++) {
        for (int i = 0; i < w; i++) {
            bimg.setRGB(x + i, y + j, pixels[j * w + i]);
        }
    }

    FileOutputStream fout = new FileOutputStream("jpg.jpg");

    JPEGImageEncoder jencoder = JPEGCodec.createJPEGEncoder(fout);
    JPEGEncodeParam enParam = jencoder.getDefaultJPEGEncodeParam(bimg);

    enParam.setQuality(1.0F, true);
    jencoder.setJPEGEncodeParam(enParam);
    jencoder.encode(bimg);

    fout.close();

}

---

From source file:Main.java

public static void main(String[] args) throws IOException {
    BufferedImage large = ImageIO.read(new File("images/a.jpg"));
    BufferedImage small = ImageIO.read(new File("images/b.jpg"));

    int w = large.getWidth();
    int h = large.getHeight();
    int type = BufferedImage.TYPE_INT_RGB;

    BufferedImage image = new BufferedImage(w, h, type);
    Graphics2D g2 = image.createGraphics();
    g2.drawImage(large, 0, 0, null);/* ww w  .j a  va  2s.  com*/
    g2.drawImage(small, 10, 10, null);
    g2.dispose();
    ImageIO.write(image, "jpg", new File("new.jpg"));

    JOptionPane.showMessageDialog(null, new ImageIcon(image), "", JOptionPane.PLAIN_MESSAGE);
}

---

From source file:Main.java

public static void main(String[] args) {
    SwingUtilities.invokeLater(new Runnable() {
        public void run() {
            JFrame f = new JFrame();
            f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            BufferedImage image = new BufferedImage(400, 300, BufferedImage.TYPE_INT_RGB);
            Graphics2D imageGraphics = image.createGraphics();
            GradientPaint gp = new GradientPaint(20f, 20f, Color.red, 380f, 280f, Color.orange);
            imageGraphics.setPaint(gp);//from  ww w  .j av a 2  s . c  o m
            imageGraphics.fillRect(0, 0, 400, 300);

            JLabel textLabel = new JLabel("java2s.com");
            textLabel.setSize(textLabel.getPreferredSize());

            Dimension d = textLabel.getPreferredSize();
            BufferedImage bi = new BufferedImage(d.width, d.height, BufferedImage.TYPE_INT_ARGB);
            Graphics g = bi.createGraphics();
            g.setColor(new Color(255, 200, 255, 128));
            g.fillRoundRect(0, 0, bi.getWidth(f), bi.getHeight(f), 15, 10);
            g.setColor(Color.black);
            textLabel.paint(g);
            Graphics g2 = image.getGraphics();
            g2.drawImage(bi, 20, 20, f);

            ImageIcon ii = new ImageIcon(image);
            JLabel imageLabel = new JLabel(ii);

            f.getContentPane().add(imageLabel);
            f.pack();

            f.setVisible(true);
        }
    });
}

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From source file:WriteImageType.java

static public void main(String args[]) throws Exception {
    try {/* ww w.  j  a  v  a  2 s  .  c o m*/
        int width = 200, height = 200;

        // TYPE_INT_ARGB specifies the image format: 8-bit RGBA packed
        // into integer pixels
        BufferedImage bi = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);

        Graphics2D ig2 = bi.createGraphics();

        Font font = new Font("TimesRoman", Font.BOLD, 20);
        ig2.setFont(font);
        String message = "www.java2s.com!";
        FontMetrics fontMetrics = ig2.getFontMetrics();
        int stringWidth = fontMetrics.stringWidth(message);
        int stringHeight = fontMetrics.getAscent();
        ig2.setPaint(Color.black);
        ig2.drawString(message, (width - stringWidth) / 2, height / 2 + stringHeight / 4);

        ImageIO.write(bi, "PNG", new File("c:\\yourImageName.PNG"));
        ImageIO.write(bi, "JPEG", new File("c:\\yourImageName.JPG"));
        ImageIO.write(bi, "gif", new File("c:\\yourImageName.GIF"));
        ImageIO.write(bi, "BMP", new File("c:\\yourImageName.BMP"));

    } catch (IOException ie) {
        ie.printStackTrace();
    }

}

---

From source file:Main.java

public static void main(String[] args) throws Exception {
    URL urlImage1 = new URL("http://www.java2s.com/style/download.png");

    final Image fgImage = ImageIO.read(urlImage1);
    int w = fgImage.getWidth(null);
    int h = fgImage.getHeight(null);
    final BufferedImage bgImage = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);

    final BufferedImage finalImage = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
    Graphics2D g = finalImage.createGraphics();
    g.drawImage(bgImage, 0, 0, null);//from w ww .  j  a v  a2  s .c  om
    g.drawImage(fgImage, 0, 0, null);
    g.dispose();

    Runnable r = new Runnable() {
        @Override
        public void run() {
            JPanel gui = new JPanel(new GridLayout(1, 0, 5, 5));

            gui.add(new JLabel(new ImageIcon(bgImage)));
            gui.add(new JLabel(new ImageIcon(fgImage)));
            gui.add(new JLabel(new ImageIcon(finalImage)));

            JOptionPane.showMessageDialog(null, gui);
        }
    };
    SwingUtilities.invokeLater(r);
}

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From source file:SaveIt.java

public static void main(String args[]) throws IOException {
    // Read//w ww  .ja  v  a  2  s .c om
    File inputFile = new File("java2s.jpg");
    BufferedImage input = ImageIO.read(inputFile);
    // Convert
    Kernel kernel = new Kernel(3, 3, SHARP);
    ConvolveOp convolveOp = new ConvolveOp(kernel, ConvolveOp.EDGE_NO_OP, null);
    int width = input.getWidth();
    int height = input.getHeight();
    BufferedImage output = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
    convolveOp.filter(input, output);
    // Save
    File outputFile = new File("java2s.png");
    ImageIO.write(output, "PNG", outputFile);
}

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